ument may be reproduced or
transmitted in any form or by any means, electronic or mechanical, for any purpose, without the express written
permission of LCD Driver IC Team.
S6B1713
65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
January.2000
Ver. 4.0
Prepared by: Jae-Su, Ko
Ko1942@samsung.co.kr
Contents in this document are subject to change without notice. No part of this doc
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
S6B1713 Specification Revision History
Version Content Date
2.0 Neglect the more past version than version 2.0 Nov.1998
2.1
fOSC = 16kHz (Typ.) → 22kHz (Typ.): For removing flicker phenomenon
Temperature coefficient (when TEMPS = L): -0.0%/°C → -0.05%/°C
Modified some syntax errors
3.0
Voltage regulator reference voltage [VREF]: TBD → 2.0
Modified voltage regulator block of “Functional Description”
3.1
VLCD absolute maximum rating: 15.0V → 17.0V
Power consumption: 100µA → 80µA
FEATURES ......................................................................................................................................................... 1
PAD CONFIGURATION....................................................................................................................................... 4
PAD CENTER COORDINATES........................................................................................................................... 5
POWER SUPPLY......................................................................................................................................... 8
S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
INTRODUCTION
The S6B1713 is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. It contains 65
commons and 132 segments driver circuits. This chip is connected directly to a microprocessor, accepts serial or
8-bit parallel display data and stores in an on-chip Display Data RAM of 65 x 132 bits. It provides a high-flexible
display section due to 1-to-1 correspondence between on-chip display data RAM bits and LCD panel pixels. And it
performs display data RAM read/write operation with no externally operating clock to minimize power consumption.
In addition, because it contains power supply circuits necessary to drive liquid crystal, it is possible to make a display
system with the fewest components.
FEATURES
Driver Output Circuits
− 65 common outputs / 132 segment outputs
On-chip Display Data RAM
− Capacity: 65 x 132 = 8,580 bits
Applicable Duty Ratios
Duty ratio Applicable LCD bias Maximum display area
1/65 1/7 or 1/9
1/49 1/6 or 1/8
1/33 1/5 or 1/6
Microprocessor Interface
− 8-bit parallel bi-directional interface with 6800-series or 8080-series
− Serial interface (only write operation) available
Function Set
− Various instructions sets
− H/W, S/W reset capable
Built-in Analog Circuit
− On-chip oscillator circuit
− Voltage converter (x2, x3, x4, x5)
− Voltage regulator (temperature coefficient: -0.05%/°C, -0.2%/°C)
− Voltage follower
− Electronic contrast control function (64 steps)
Operating Voltage Range
− Supply voltage (VDD): 2.4 to 3.6 V
− LCD driving voltage (VLCD = V0 - VSS): 4.0 to 15.0 V
65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
PIN DESCRIPTION
POWER SUPPLY
Table 3. Power Supply Pin Description
Name I/O Description
VDD Supply Power supply
VSS Supply Ground
LCD driver supply voltages
The voltage determined by LCD pixel is impedance-converted by an operational amplifier
for application.
Voltages should have the following relationship;
V0 ≥ V1 ≥ V2 ≥ V3 ≥ V4 ≥ VSS
When the internal power circuit is active, these voltages are generated as following table
according to the state of LCD Bias.
LCD bias V1 V2 V3 V4
1/9 bias (8/9) x V0 (7/9) x V0 (2/9) x V0 (1/9) x V0
1/8 bias (7/8) x V0 (6/8) x V0 (2/8) x V0 (1/8) x V0
1/7 bias (6/7) x V0 (5/7) x V0 (2/7) x V0 (1/7) x V0
1/6 bias (5/6) x V0 (4/6) x V0 (2/6) x V0 (1/6) x V0
1/5 bias (4/5) x V0 (3/5) x V0 (2/5) x V0 (1/5) x V0
V0
V1
V2
V3
V4
I/O
LCD DRIVER SUPPLY
Table 4. LCD Driver Supply Pin Description
Name I/O Description
C1- O Capacitor 1 negative connection pin for voltage converter
C1+ O Capacitor 1 positive connection pin for voltage converter
C2- O Capacitor 2 negative connection pin for voltage converter
C2+ O Capacitor 2 positive connection pin for voltage converter
C3- O Capacitor 3 negative connection pin for voltage converter
C3+ O Capacitor 3 positive connection pin for voltage converter
VOUT I/O Voltage converter input / output pin
5 times boosting circuit enable input pin
DCDC5B
VR I
I
When this pin is low in 4 times boosting circuit, the 5-times boosting voltage appears at
VOUT.
V0 voltage adjustment pin
It is valid only when on-chip resistors are not used (INTRS = “L”) .
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S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
Table 5. System Control Pin Description (Continued)
Name I/O Description
Selects input voltages of the built-in voltage converter
BSTS I
DUTY0
DUTY1
BSTS
Voltage converter
input voltage
Remarks
L 4V VDD > 4V
H VDD
2.4V ≤ VDD ≤ 3.6V
When BSTS pin is “L” , VDD must be higher than 4V in four times boosting.
NOTE: Because the maximum voltage of VDD has been changed to 3.6V, we strongly
recommend that BSTS pin should be fixed to “H” .
The LCD driver duty ratio depends on the following table
DUTY1 DUTY0 Duty ratio
I
L L 1/33
L H 1/49
H L/H 1/65
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S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
MICROPROCESSOR INTERFACE
Table 6. Microprocessor Interface Pin Description
Name I/O Description
RESETB
PS I
MI I
CS1B
CS2
RS I
RW_WR
Reset input pin
I
When RESETB is “L”, initialization is executed.
Parallel / Serial data input select input
PS
*NOTE: In serial mode, it is impossible to read data from the on-chip RAM. And DB0 to DB5
are high impedance and E_RD and RW_WR must be fixed to either “H” or “L”.
Microprocessor interface selects input pin
− MI = "H": 6800-series MPU interface
− MI = "L": 8080-series MPU interface
Chip select input pins
I
Data / instruction I/O is enabled only when CS1B is “L” and CS2 is “H”.
When chip select is non-active, DB0 to DB7 may be high impedance.
Register select input pin
− RS = "H": DB0 to DB7 are display data
− RS = "L": DB0 to DB7 are control data
Read / Write execution control pin
MI MPU type RW_WR Description
I
Interface
mode
H Parallel
L Serial
H 6800-series
L 8080-series
Chip
select
CS1B,
CS2
CS1B,
CS2
RW
/WR
Data /
instruction
RS DB0 to DB7
RS SID(DB7) Write only SCLK(DB6)
Read / Write control input pin
− RW = “H”: read
− RW = “L”: write
Write enable clock input pin
The data ON DB0 to DB7 are latched at the rising
edge of the /WR signal.
Data Read / Write Serial clock
E_RD
RW_WR
-
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
− RW = “L”: The data on DB0 to DB7 are latched at
the falling edge of the E signal.
DB0
to
DB7
I/O
L 8080-series
/RD
Read enable clock input pin
When /RD is “L”, DB0 to DB7 are in an output status.
8-bit bi-directional data bus that is connected to the standard 8-bit microprocessor data
bus. When the serial interface selected (PS = "L");
− DB0 to DB5: high impedance
− DB6: serial input clock (SCLK)
− DB7: serial input data (SID)
When chip select is not active, DB0 to DB7 may be high impedance.
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S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
LCD DRIVER OUTPUTS
Table 7. LCD Driver Outputs Pin Description
Name I/O Description
LCD segment driver outputs
The display data and the M signal control the output voltage of segment driver.
SEG1
to
SEG132
COM1
to
COM64
COMS O
O
O
Display data M
Segment driver output voltage
Normal display Reverse display
H H V0 V2
H L VSSV3
L H V2 V0
L L V3 VSS
Power save mode VSSVSS
LCD common driver outputs
The internal scanning data and M signal control the output voltage of common driver.
Scan data M Common driver output voltage
H H VSS
H L V0
L H V1
L L V4
Power save mode VSS
Common output for the icons
The output signals of two pins are same. When not used, these pins should be left open. In
multi-chip (master / slave) mode, all COMS pins on both master and slave units are the
same signal.
NOTE: DUMMY - These pins should be opened (floated).
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
FUNCTIONAL DESCRIPTION
MICROPROCESSOR INTERFACE
Chip Select Input
There are CS1B and CS2 pins for Chip Selection. The S6B1713 can interface with an MPU only when CS1B is “L”
and CS2 is “H”. When these pins are set to any other combination, RS, E_RD, and RW_WR inputs are disabled and
DB0 to DB7 are to be high impedance. And, in case of serial interface, the internal shift register and the counter are
reset.
Parallel / Serial Interface
S6B1713 has three types of interface with an MPU, which are one serial and two parallel interfaces. This parallel or
serial interface is determined by PS pin as shown in table 8.
Table 8. Parallel / Serial Interface Mode
PS Type CS1B CS2 MI Interface mode
H Parallel CS1B CS2
L Serial CS1B CS2
Parallel Interface (PS = "H")
The 8-bit bi-directional data bus is used in parallel interface and the type of MPU is selected by MI as shown in table
9. The type of data transfer is determined by signals at RS, E_RD and RW_WR as shown in table10.
Table 9. Microprocessor Selection for Parallel Interface
MI CS1B CS2 RS E_RD RW_WR
H CS1B CS2 RS E RW DB0 to DB7 6800-series
L CS1B CS2 RS /RD /WR DB0 to DB7 8080-series
Table 10. Parallel Data Transfer
Common
RS
6800-series 8080-series
E_RD
(E)
RW_WR
(RW)
E_RD
(/RD)
RW_WR
(/WR)
H 6800-series MPU mode
L 8080-series MPU mode
*×
DB0 to DB7 MPU bus
Description
Serial-mode
*× : Don't care
H H H L H Display data read out
H H L H L Display data write
L H H L H Register status read
L H L H L Writes to internal register (instruction)
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S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
Serial Interface (PS = "L")
When the S6B1713 is active, serial data (DB7) and serial clock (DB6) inputs are enabled. And not active, the internal
8-bit shift register and the 3-bit counter are reset. Serial data can be read on the rising edge of serial clock going into
DB6 and processed as 8-bit parallel data on the eighth serial clock. Serial data input is display data when RS is high
and control data when RS is low. Since the clock signal (DB6) is easy to be affected by the external noise caused by
the line length, the operation check on the actual machine is recommended.
CS1B
CS2
SID
SCLK
RS
DB6DB7DB0DB1DB2DB3DB4DB5DB6DB7
Figure 3. Serial Interface Timing
Busy Flag
The Busy Flag indicates whether the S6B1713 is operating or not. When DB7 is “H” in read status operation, this
device is in busy status and will accept only read status instruction. If the cycle time is correct, the microprocessor
needs not to check this flag before each instruction, which improves the MPU performance.
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
Data Transfer
The S6B1713 uses bus holder and internal data bus for Data Transfer with the MPU. When writing data from the
MPU to on-chip RAM, data is automatically transferred from the bus holder to the RAM as shown in figure 4. And
when reading data from on-chip RAM to the MPU, the data for the initial read cycle is stored in the bus holder
(dummy read) and the MPU reads this stored data from bus holder for the next data read cycle as shown in figure 5.
This means that a dummy read cycle must be inserted between each pair of address sets when a sequence of
address sets is executed. Therefore, the data of the specified address cannot be output with the read display data
instruction right after the address sets, but can be output at the second read of data.
MPU signals
RS
/WR
DB0 to DB7
Internal signals
/WR
BUS HOLDER
COLUMN ADDRESS
ND(N)D(N+1)D(N+2)D(N+3)
ND(N)D(N+1)D(N+2)D(N+3)
NN+1N+2N+3
Figure 4. Write Timing
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S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
N
D(N)
D(N+1)
D(N+2)
N
N+1
N+2
N+3
MPU signals
RS
/WR
/RD
DB0 to DB7
Internal signals
/WR
/RD
BUS HOLDER
COLUMN ADDRESS
N
DummyD(N)D(N+1)
Figure 5. Read Timing
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
DISPLAY DATA RAM (DDRAM)
The Display Data RAM stores pixel data for the LCD. It is 65-row by 132-column addressable array. Each pixel can
be selected when the page and column addresses are specified. The 65 rows are divided into 8 pages of 8 lines and
the 9th page with a single line (DB0 only). Data is read from or written to the 8 lines of each page directly through
DB0 to DB7. The display data of DB0 to DB7 from the microprocessor correspond to the LCD common lines as
shown in Figure 6. The microprocessor can read from and write to RAM through the I/O buffer. Since the LCD
controller operates independently, data can be written into RAM at the same time as data is being displayed without
causing the LCD flicker.
DB0001- -0
DB1100- -1
DB2011- -0
DB3101- -0
DB4000- -1
COM1- -
COM2- COM3- COM4- COM5- -
Display Data RAM LCD Display
Figure 6. RAM-to-LCD Data Transfer
Page Address Circuit
This circuit is for providing a Page Address to Display Data RAM shown in figure 8. It incorporates 4-bit Page
Address register changed by only the “Set Page” instruction. Page Address 8 (DB3 is “H”, but DB2, DB1 and DB0
are “L”) is a special RAM area for the icons and display data DB0 is only valid. When Page Address is above 8, it is
impossible to access to on-chip RAM.
Line Address Circuit
This circuit assigns DDRAM a Line Address corresponding to the first line (COM1) of the display. Therefore, by
setting line address repeatedly, it is possible to realize the screen scrolling and page switching without changing the
contents of on-chip RAM as shown in figure 8. It incorporates 6-bit line address register changed by only the initial
display line instruction and 6-bit counter circuit. At the beginning of each LCD frame, the contents of register are
copied to the line counter which is increased by CL signal and generates the Line Address for transferring the
132-bit RAM data to the display data latch circuit. However, display data of icons are not scrolled because the MPU
can not access Line Address of icons.
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S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
Column Address Circuit
Column address circuit has a 8-bit preset counter that provides column address to the Display Data RAM as shown
in figure 8. When set Column Address MSB / LSB instruction is issued, 8-bit [Y7:Y0] is updated. And, since this
address is increased by 1 each a Read or Write Data instruction, microprocessor can access the display data
continuously. However, the counter is not increased and locked if a non-existing address above 84H. It is unlocked
if a column address is set again by set Column Address MSB / LSB instruction. And the Column Address counter is
independent of page address register.
ADC select instruction makes it possible to invert the relationship between the Column Address and the segment
outputs. It is necessary to rewrite the display data on built-in RAM after issuing ADC select instruction. Refer to the
following figure 7.
Figure 7. The Relationship between the Column Address and the Segment Outputs
Segment Control Circuit
This circuit controls the display data by the Display ON / OFF, Reverse display ON / OFF and entire display ON /
OFF instructions without changing the data in the display data RAM.
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
1/65 Duty (85°C)
LCD DISPLAY CIRCUITS
Oscillator
This is completely on-chip oscillator and its frequency is nearly independent of VDD. This oscillator signal is used in
the voltage converter and display timing generation circuit.
* Test condition: Temperature: 25°C & 85°C, TEMPS=”L” , No load
This circuit generates some signals to be used for displaying LCD. The display clock, CL, generated by oscillation
clock, generates the clock for the line counter and the signal for the display data latch. The line address of on-chip
RAM is generated in synchronization with the display clock (CL) and the 132-bit display data is latched by the
display data latch circuit in synchronization with the display clock. The display data, which is read to the LCD driver,
is completely independent of the access to the display data RAM from the microprocessor. The display clock
generates an LCD AC signal (M) which enables the LCD driver to make a AC drive waveform, and also generates an
internal common timing signal and start signal to the common driver. Driving 2-frame AC driver waveform and
internal timing signal are shown in figure 9.
In a multiple-chip configuration, the slave chip requires the M, CL and DISP signals from the master. Table 11 shows
the M, CL, and DISP status.
Table 11. Master and Slave Timing Signal Status
Operation mode Oscillator
Master
ON (internal clock used) Output Output Output
M CL DISP
OFF (external clock used) Output Input Output
Slave - Input Input Input
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
64651234567891011125859606162636465123456
CL
M
V0
V1
COM1
COM2
SEGn
V2
V3
V4
VSS
V0
V1
V2
V3
V4
VSS
V0
V1
V2
V3
V4
VSS
Figure 10. 2-frame AC Driving Waveform (Duty ratio = 1/65)
Common Output Control Circuit
This circuit controls the relationship between the number of common output and specified duty ratio. SHL Select
Instruction specifies the scanning direction of the common output pins.
Table 12. The Relationship between Duty Ratio and Common Output
S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
COM16
SEG3
SEG2
SEG1
COM3
COM1
COM2
M
V
LCD DRIVER CIRCUIT
This driver circuit is configured by 66-channel common drivers (including 2 COMS channels) and 132-channel
segment drivers. This LCD panel driver voltage depends on the combination of display data and M signal.
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
COM9
COM10
COM11
COM12
COM13
COM14
COM15
V
DD
V0
V1
V2
V3
V4
V0
V1
V2
V3
V4
V0
V1
V2
V3
V4
V0
V1
V2
V3
V4
V0
V1
V2
V3
V4
S
E
E
E
E
E
G
G
G
1
3
2
G
G
5
4
Figure 11. Segment and Common Timing
23
V0
V1
V2
V3
V4
S
S
S
S
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
POWER SUPPLY CIRCUITS
The Power Supply circuits generate the voltage levels necessary to drive liquid crystal driver circuits with low power
consumption and the fewest components. There are voltage converter circuits, voltage regulator circuits, and
voltage follower circuits. They are valid only in master operation and controlled by power control instruction. For
details, refers to "Instruction Description". Table 13 shows the referenced combinations in using power supply
circuits.
Table 13. Recommended Power Supply Combinations
User setup
Only the internal power
supply circuits are used
Only the voltage
regulator circuits and
voltage follower circuits
are used
Only the voltage follower
circuits are used
Only the external power
supply circuits are used
Power
control
(VC VR VF)
1 1 1 ON ON ON Open Open Open
0 1 1 OFF ON ON
0 0 1 OFF OFF ON Open
0 0 0 OFF OFF OFF Open
V/C
circuits
V/R
circuits
V/F
circuits
VOUT V0 V1 to V4
External
input
Open Open
External
input
External
input
External
Open
input
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S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
VDD
C1C1 GND
VSS
VDD
V
VDD-+
+--
+
C1
GND
V
-
+
+-+
-
+
VSSV
V
Voltage Converter Circuits
These circuits boost up the electric potential between VDD and VSS to 2, 3, 4 or 5 times toward positive side and
boosted voltage is outputted from VOUT pin.
[C1 = 1.0 to 4.7 µF]
DD
V
DD
VOUT
C3+
C3 -
C2+
C2 -
C1+
C1 -
DCDC5B
SS
V
VDD
VOUT = 2 × VDD
VDD
VOUT
C3+
C3 -
C2+
C2 -
C1+
C1 -
DCDC5B
SS
V
C1
C1
VOUT = 3 × VDD
DD
V
SS
V
Figure 12. Two Times Boosting Circuit Figure 13. Three Times Boosting Circuit
DD
DD
V
VOUT
C3+
C3 -
C2+
C2 C1+
C1 -
DCDC5B
SS
V
C1
C1
C1
C1
DD
VOUT = 4 × V
DD
DD
DD
V
DD
V
VOUT
C3+
C3 -
C2+
C2 C1+
C1 -
DCDC5B
SS
V
C1
C1
C1
C1
GND
VOUT = 5 × V
DD
V
SS
V
DD
GND
GND
Figure 14. Four Times Boosting Circuit Figure 15. Five Times Boosting Circuit
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
Voltage Regulator Circuits
The function of the internal Voltage Regulator circuits is to determine liquid crystal operating voltage, V0, by
adjusting resistors, Ra and Rb, within the range of |V0| < |VOUT|. Because VOUT is the operating voltage of
operational-amplifier circuits shown in figure 16, it is necessary to be applied internally or externally.
For the Eq. 1, we determine V0 by Ra, Rb and VEV. The Ra and Rb are connected internally or externally by INTRS
pin. And VEV called the voltage of electronic volume is determined by Eq. 2, where the parameter α is the value
selected by instruction, "Set Reference Voltage Register", within the range 0 to 63. VREF voltage at Ta = 25°C is
shown in table 14-1.
Rb
V0 = ( 1 + ) x VEV [V] ------ (Eq. 1)
Ra
(63 - α)
VEV = ( 1 - ) x VREF [V] ------ (Eq. 2)
300
Table 14-1. VREF Voltage at Ta = 25 °C
TEMPS Temp. coefficient VREF [V]
L
H
-0.05% / °C
-0.2% / °C
2.0
2.0
Table 14-2. Reference Voltage Parameters (α)
SV5 SV4 SV3 SV2 SV1 SV0
Reference voltage parameter (α)
0 0 0 0 0 0 0
0 0 0 0 0 1 1
:
:
:
:
:
:
:
:
:
:
:
:
1 1 1 1 1 0 62
1 1 1 1 1 1 63
:
:
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S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
GND
Ra
Rb
VSSVRV0VOUT
+
EV
V
-
Figure 16. Internal Voltage Regulator Circuit
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
In Case of Using Internal Resistors, Ra and Rb (INTRS = "H")
When INTRS pin is “H”, resistor Ra is connec ted internally between VR pin and VSS, and Rb is connected between
V0 and VR. We determine V0 by two instructions, "Regulator Resistor Select" and "Set Reference Voltage".
Table 15. Internal Rb / Ra Ratio depending on 3-bit Data (R2 R1 R0)
0 0 0 0 0 1 0 1 0 0 1 1 1 0 0 1 0 1 1 1 0 1 1 1
1+(Rb / Ra)
The following figure shows V0 voltage measured by adjusting internal regulator resistor ratio (Rb / Ra) and 6-bit
electronic volume registers for each temperature coefficient at Ta = 25 °C.
1.90 2.19 2.55 3.02 3.61 4.35 5.29 6.48
3-bit data settings (R2 R1 R0)
14.00
(1 1 1)
12.00
10.00
(1 1 0)
(1 0 1)
(1 0 0)
V0
[V]
8.00
6.00
(0 1 1)
(0 1 0)
(0 0 1)
4.00
(0 0 0)
2.00
0.00
08162432404856
Electronic volume level
Figure 17. Electronic Volume Level
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S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
In Case of Using External Resistors, Ra and Rb. (INTRS = "L")
When INTRS pin is “L”, it is necessary to connect external regulator resist or Ra between VR and VSS, and Rb
between V0 and VR.
VEV = ( 1 - ) x 2.0 = 1.79[V] ------ (Eq. 4)
300
From requirement 3.
10
= 1 [uA] ------ (Eq. 5)
Ra + Rb
From equations Eq. 3, 4 and 5
Ra = 1.79 [MΩ]
Rb = 8.21 [MΩ]
The following table shows the range of V0 depending on the above requirements.
Table 16. V0 Depending on Electronic Volume Level
Electronic volume level
0 ....... 32 ....... 63
V0 8.83 ....... 10.00 ....... 11.17
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
Voltage Follower Circuits
VLCD voltage (V0) is resistively divided into four voltage levels (V1, V2, V3 and V4) and those output impedance are
converted by the Voltage Follower for increasing drive capability. The following table shows the relationship
between V1 to V4 level and each duty ratio.
Table 17. The Relationship between V1 to V4 level and Duty Ratio
Duty Ratio DUTY1 DUTY0
1/33 L L
1/49 L H
1/65 H L/H
LCD Bias V1 V2 V3 V4
1/5 (4/5) x V0 (3/5) x V0 (2/5) x V0 (1/5) x V0
1/6 (5/6) x V0 (4/6) x V0 (2/6) x V0 (1/6) x V0
1/6 (5/6) x V0 (4/6) x V0 (2/6) x V0 (1/6) x V0
1/8 (7/8) x V0 (6/8) x V0 (2/8) x V0 (1/8) x V0
1/7 (6/7) x V0 (5/7) x V0 (2/7) x V0 (1/7) x V0
1/9 (8/9) x V0 (7/9) x V0 (2/9) x V0 (1/9) x V0
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S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
VDD
VDD
VOUT
V4
VOUT
C1
C1
When using internal regulator
VOUT
V4
VOUT
REFERECE CIRCUIT EXAMPLES
resistors When not using internal regulator resistors
VSS
V
C1
C1
C1
C2 - +
C2 - +
C2 - +
C2 - +
C2 - +
SS
MS INTRS
C3+
C3C2+
C2C1+
C1-
VR
V0
V1
V2
V3
V
C1
C1
C1
C2 - +
C2 - +
C2 - +
C2 - +
C2 - +
SS
Ra
MS INTRS
C3+
C3C2+
C2C1+
C1-
VR
Rb
V0
V1
V2
V3
V4
Figure 18. When Using all LCD Power Circuits (4-Time V/C: ON, V/R: ON, V/F: ON)
When using internal regulator resistors When not using internal regulator resistors
V
DD
External
Power
Supply
C2 - +
C2 - +
C2 - +
C2 - +
C2 - +
MS INTRS
C3+
C3C2+
C2C1+
C1-
VR
V0
V1
V2
V3
V
DD
External
Power
Supply
Ra
C2 - +
C2 - +
C2 - +
C2 - +
C2 - +
MS INTRS
C3+
C3C2+
C2C1+
C1-
VR
Rb
V0
V1
V2
V3
V4
V
SS
V
SS
Figure 19. When Using some LCD Power Circuits (V/C: OFF, V/R: ON, V/F: ON)
V
SS
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
V
DD
VOUT
V4
VOUT
V4
MS INTRS
C3+
C3C2+
External
Power
C2C1+
C1-
Supply
VR
V
C2 - +
C2 - +
C2 - +
C2 - +
C2 - +
SS
V0
V1
V2
V3
Figure 20. When Using some LCD Power Circuits (V/C: OFF, V/R: OFF, V/F: ON)
VDD
MS INTRS
C3+
C3C2+
VSS
External
Power
Supply
C2C1+
C1-
VR
V0
V1
V2
V3
Value of external Capacitance
ItemValueUnit
C11.0 to 4.7
C20.47 to 1.0
µ
F
Figure 21. When Not Using any Internal LCD Power Supply Circuits (V/C: OFF, V/R: OFF, V/F: OFF)
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S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
RESET CIRCUIT
Setting RESETB to “L” or Reset instruction can initialize internal function.
When RESETB becomes “L”, following procedure is occurred.
Display ON / OFF: OFF
Entire display ON / OFF: OFF (normal)
ADC select: OFF (normal)
Reverse display ON / OFF: OFF (normal)
Power control register (VC, VR, VF) = (0, 0, 0)
LCD bias ratio: 1/7 (1/65 duty), 1/6 (1/49 duty), 1/5 (1/33 duty)
Read-modify-write: OFF
SHL select: OFF (normal)
Static indicator mode: OFF
Static indicator register: (S1, S0) = (0, 0)
Display start line: 0 (first)
Column address: 0
Page address: 0
Regulator resistor select register: (R2, R1, R0) = (0, 0, 0)
Reference voltage set: OFF
Reference voltage control register: (SV5, SV4, SV3, SV2, SV1, SV0) = (1, 0, 0, 0, 0, 0)
When RESET instruction is issued, following procedure is occurred.
Read-modify-write: OFF
Static indicator mode: OFF
Static indicator register: (S1, S0) = (0, 0)
SHL select: 0
Display start line: 0 (first)
Column address: 0
Page address: 0
Regulator resistor select register: (R2, R1, R0) = (0, 0, 0)
Reference voltage set: OFF
Reference voltage control register: (SV5, SV4, SV3, SV2, SV1, SV0) = (1, 0, 0, 0, 0, 0)
While RESETB is “L” or Reset instruction is executed, no instruction except read status can be accepted. Reset
status appears at DB4. After DB4 becomes ”L”, any instruction can be accepted. RESETB must be connected to the
reset pin of the MPU, and initialize the MPU and this LSI at the same time. The initialization by RESETB is essential
before used.
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
INSTRUCTION DESCRIPTION
Table 18. Instruction Table
× : Don’t care
Instruction
Read display data 1 1 Read data Read data from DDRAM
Write display data 1 0 Write data Write data into DDRAM
Read status 0 1
Display ON / OFF 0 0 1 0 1 0 1 1 1
Initial display line 0 0 0 1 ST5 ST4 ST3 ST2 ST1 ST0 Specify DDRAM line for COM1
Set reference voltage
mode
Set reference voltage
register
Set page address 0 0 1 0 1 1 P3 P2 P1 P0 Set page address
Set column address MSB
Set column address LSB 0 0 0 0 0 0 Y3 Y2 Y1 Y0 Set column address LSB
Power control 0 0 0 0 1 0 1 VC VR VF Control power circuit operation
Power save - - - - - - - - - -
Test instruction 0 0 1 1 1 1
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
BUSY ADC ON/OFF
0 0 1 0 0 0 0 0 0 1 Set reference voltage Mode
0 0
0 0 0 0 0 1 Y7 Y6 Y5 Y4 Set column address MSB
× ×
× × × × × ×
RESETB
SV5 SV4 SV3 SV2 SV1 SV0 Set reference voltage register
0 0 0 0 Read the internal status
××××
Turn on/off LCD panel
DON
When DON = 0: display OFF
When DON = 1: display ON
Select SEG output direction
When ADC = 0: normal direction
(SEG1→SEG132)
When ADC = 1: reverse direction
(SEG132→SEG1)
Select normal / reverse display
When REV = 0: normal display
When REV = 1: reverse display
Select normal / entire display ON
When EON = 0: normal display.
When EON = 1: entire display ON
BIAS Select LCD bias
Select COM output direction
When SHL = 0: normal direction
×××
S1 S0 Set static indicator register
(COM1→COM64)
When SHL = 1: reverse direction
(COM64→COM1)
Select internal resistance ratio of
the regulator resistor
Compound instruction of display
OFF and entire display ON
Don't use this instruction.
Description
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S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
Read Display Data
8-bit data from Display Data RAM specified by the column address and page address can be read by this
instruction. As the column address is increased by 1 automatically after each this instruction, the
microprocessor can continuously read data from the addressed page. A dummy read is required after loading
an address into the column address register. Display Data cannot be read through the serial interface.
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
1 1 Read data
Write Display Data
8-bit data of Display Data from the microprocessor can be written to the RAM location specified by the column
address and page address. The column address is increased by 1 automatically so that the microprocessor can
continuously write data to the addressed page.
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
1 0 Write data
Set Page Address
Set Column Address
Data Write
Column = Column + 1
Data Write Continue ?
NO
Optional Status
YES
Set Page Address
Set Column Address
Dummy Data Read
Column = Column + 1
Data Read
Column = Column + 1
Data Read Continue ?
NO
Optional Status
YES
Figure 22. Sequence for Writing Display Data Figure 23. Sequence for Reading Display Data
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
Read Status
Indicates the internal status of the S6B1713.
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 1 BUSY ADC ON / OFF RESETB
0 0 0
0
Flag Description
The device is busy when internal operation or reset. Any instruction is rejected until
BUSY
BUSY goes Low.
0: chip is active, 1: chip is being busy.
ADC
ON / OFF
RESETB
Indicates the relationship between RAM column address and segment driver.
0: reverse direction (SEG132 → SEG1), 1: normal direction (SEG1 → SEG132)
Indicates display ON / OFF status
0: display ON, 1: display OFF
Indicates the initialization is in progress by RESETB signal.
0: chip is active, 1: chip is being reset.
Display ON / OFF
Turns the display ON or OFF
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 1 0 1 0 1 1 1 DON
DON = 1: display ON
DON = 0: display OFF
Initial Display Line
Sets the line address of display RAM to determine the Initial Display Line. The RAM display data is displayed at
the top row (COM1 when SHL = L, COM64 when SHL = H) of LCD panel.
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 1 ST5 ST4 ST3 ST2 ST1 ST0
ST5 ST4 ST3 ST2 ST1 ST0 Line address
0 0 0 0 0 0 0
0 0 0 0 0 1 1
: : : : : : :
1 1 1 1 1 0 62
1 1 1 1 1 1 63
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S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
Reference Voltage Select
Consists of 2-byte instruction
The 1st instruction sets reference voltage mode, the 2nd one updates the contents of reference voltage register.
After second instruction, reference voltage mode is released.
The 1st Instruction: Set Reference Voltage Select Mode
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 1 0 0 0 0 0 0 1
The 2nd Instruction: Set Reference Voltage Register
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0
××
SV5 SV4 SV3 SV2 SV1 SV0
SV5 SV4 SV3 SV2 SV1 SV0
Reference voltage parameter (α)
0 0 0 0 0 0 0
0 0 0 0 0 1 1
:
:
:
:
:
:
:
:
:
:
:
:
1 1 1 1 1 0 62
1 1 1 1 1 1 63
Setting Reference Voltage Start
1st Instruction for Mode Setting
2nd Instruction for Register Setting
Setting Reference Voltage End
Figure 24.Sequence for Setting the Reference Voltage
:
:
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
Set Page Address
Sets the Page Address of display data RAM from the microprocessor into the Page Address register. Any RAM
data bit can be accessed when its Page Address and column address are specified. Along with the column
address, the Page Address defines the address of the display RAM to write or read display data. Changing the
Page Address doesn't effect to the display status.
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
P3 P2 P1 P0 Page
0 0 0 0 0
0 0 0 1 1
: : : : :
0 1 1 1 7
1 0 0 0 8
Set Column Address
Sets the Column Address of display RAM from the microprocessor into the Column Address register. Along with
the Column Address, the Column Address defines the address of the display RAM to write or read display data.
When the microprocessor reads or writes display data to or from display RAM, column addresses are
automatically increased.
Set Column Address MSB
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 0 1 Y7 Y6 Y5 Y4
Set Column Address LSB
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 1 0 1 1 P3 P2 P1 P0
Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 Column address
0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 1 1
: : : : : : : : :
1 0 0 0 0 0 1 0 130
1 0 0 0 0 0 1 1 131
38
0 0 0 0 0 0 Y3 Y2 Y1 Y0
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S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
ADC Select
Changes the relationship between RAM column address and segment driver. The direction of segment driver
output pins can be reversed by software. This makes IC layout flexible in LCD module assembly.
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 1 0 1 0 0 0 0 ADC
ADC = 0: normal direction (SEG1 → SEG132)
ADC = 1: reverse direction (SEG132 → SEG1)
Reverse Display ON / OFF
Reverses the display status on LCD panel without rewriting the contents of the display data RAM.
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
REV RAM bit data = “1” RAM bit data = “0”
0 (normal) LCD pixel is illuminated LCD pixel is not illuminated
1 (reverse) LCD pixel is not illuminated LCD pixel is illuminated
Entire Display ON / OFF
Forces the whole LCD points to be turned on regardless of the contents of the display data RAM. At this time,
the contents of the display data RAM are held. This instruction has priority over the reverse display ON / OFF
instruction.
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 1 0 1 0 0 1 0 EON
EON = 0: normal display
EON = 1: entire display ON
Select LCD Bias
Selects LCD bias ratio of the voltage required for driving the LCD.
65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
Set Modify-Read
This instruction stops the automatic increment of the column address by the read display data instruction, but
the column address is still increased by the write display data instruction. And it reduces the load of
microprocessor when the data of a specific area is repeatedly changed during cursor blinking or others. This
mode is canceled by the reset Modify-read instruction.
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 1 1 1 0 0 0 0 0
Reset Modify-Read
This instruction cancels the Modify-read mode, and makes the column address return to its initial value just
before the set Modify-read instruction is started.
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 1 1 1 0 1 1 1 0
Set Page Address
NO
Set Column Address (N)
Set Modify-Read
Dummy Read
Data Read
Data Process
Data Write
Change Complete ?
YES
Reset Modify-Read
Return Column Address (N)
Figure 25. Sequence for Cursor Display
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S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
Reset
This instruction resets initial display line, column address, page address, and common output status select to
their initial status, but dose not affect the contents of display data RAM. This instruction cannot initialize the LCD
power supply which is initialized by the RESETB pin.
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 1 1 1 0 0 0 1 0
SHL Select
COM output scanning direction is selected by this instruction which determines the LCD driver output status.
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 1 1 0 0 SHL
×××
× : Don’ t care
SHL = 0: normal direction (COM1 → COM64)
SHL = 1: reverse direction (COM64 → COM1)
Power control
Selects one of eight power circuit functions by using 3-bit register. An external power supply and part of internal
power supply functions can be used simultaneously.
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 1 0 1 VC VR VF
VC VR VF Status of internal power supply circuits
0
1
0
1
0
1
Internal voltage converter circuit is OFF
Internal voltage converter circuit is ON
Internal voltage regulator circuit is OFF
Internal voltage regulator circuit is ON
Internal voltage follower circuit is OFF
Internal voltage follower circuit is ON
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
Regulator Resistor Select
Selects resistance ratio of the internal resistor used in the internal voltage regulator. See voltage regulator
section in power supply circuit. Refer to the table 15.
Consists of two bytes instruction. The first byte instruction (set Static Indicator mode) enables the second byte
instruction (set Static Indicator register) to be valid. The first byte sets the static indicator ON / OFF. When it is
on, the second byte updates the contents of static indicator register without issuing any other instruction and
this static indicator state is released after setting the data of indicator register.
0 0 0 0 1 0 0 R2 R1 R0
st
The 1
Instruction: Set Static Indicator Mode (ON / OFF)
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 1 0 1 0 1 1 0 SM
SM = 0: static indicator OFF
SM = 1: static indicator ON
The 2nd Instruction: Set Static Indicator Register
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0
××××××
S1 S0 Status of static indicator output
0 0 OFF
0 1 ON (about 1 second blinking)
1 0 ON (about 0.5 second blinking )
1 1 ON (always ON)
S1 S0
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S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
Release Sleep Mode
Power Save (Compound Instruction)
If the entire display ON / OFF instruction is issued during the display OFF state, S6B1713 enters the Power
Save status to reduce the power consumption to the static power consumption value. According to the status of
static indicator mode, power save is entered to one of two modes (sleep and standby mode). When static
indicator mode is ON, standby mode is issued, when OFF, sleep mode is issued. Power Save mode is released
by the display ON and entire display OFF instruction.
Static Indicator OFFStatic Indicator ON
Power Save (Compound Instruction)
[Display OFF]
[Entire Display ON]
Sleep Mode
[Oscillator Circuit: OFF]
[LCD Power Supply Circuit: OFF]
[All COM / SEG Outputs: VSS]
[Consumption Current: < 2mA]
Power Save OFF (Compound Instruction)
[Entire Display OFF]
[Static Indicator ON]
[Display ON]
Figure 26. Power Save Routine
Standby Mode
[Oscillator Circuit: ON]
[LCD Power Supply Circuit: OFF]
[All COM/SEG Outputs: VSS]
[Consumption Current: < 10mA]
Power Save OFF (Compound Instruction)
[Entire Display OFF]
[Display ON]
Release Standby Mode
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
Referential Instruction Setup Flow (1)
User System Setup by External Pins
Start of Initialization
Power ON (VDD - VSS) Keeping the RESETB Pin = “L”
Waiting for Stabilizing the Power
RESETB Pin = “H”
User Application Setup by Internal Instructions
[ADC Select]
[SHL Select]
[LCD Bias Select]
User LCD Power Setup by Internal Instructions
[Voltage Converter ON]
Waiting for ≥ 1ms
User LCD Power Setup by Internal Instructions
[Voltage Regulator ON]
Waiting for ≥ 1ms
User LCD Power Setup by Internal Instructions
[Voltage Follower ON]
User LCD Power Setup by Internal Instructions
[Regulator Resistor Select]
[Reference Voltage Register Set]
Waiting for Stabilizing the LCD Power Levels
End of Initialization
Figure 27. Initializing with the Built-in Power Supply Circuits
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S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
Referential Instruction Setup Flow (2)
User System Setup by External pins
Start of initialization
Power On ( VDD - VSS ) keeping the RESETB pin = “L”
Waiting for stabilizing the power
RESETB pin = “H”
Set Power Save
User Application Setup by Internal Instructions
[ADC Select]
[SHL Select]
[LCD Bias Select]
User LCD Power Setup by Internal Instructions
[Regulator Resistor Select]
[Reference Voltage Register Set]
Release Power Save
Waiting for Stabilizing the LCD Power Levels
End of Initialization
Figure 28. Initializing without the Built-in Power Supply Circuits
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
Referential Instruction Setup Flow (3)
End of Initialization
Display Data RAM Addressing by Instruction
[Initial Display Line]
[Set Page Address]
[Set Column Address]
Write Display ON / OFF by Instruction
[Display ON / OFF]
Turn Display ON / OFF by Instruction
[Display ON / OFF]
End of Data Display
Figure 29. Data Displaying
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S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
Waiting for ≥ 1ms
Waiting for ≥ 1ms
Referential Instruction Setup Flow (4)
Optional Status
Turn Display ON / OFF by Instruction
[Display OFF]
User LCD Power Setup by Internal Instructions
[Voltage Regulator OFF]
Waiting for ≥ 50ms
User LCD Power Setup by Internal Instructions
[Voltage Follower OFF]
User LCD Power Setup by Internal Instructions
[Voltage Converter OFF]
Power OFF (V
DD
- VSS)
Figure 30. Power OFF
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
3. If supply voltage exceeds its absolute maximum range, this LSI may be damaged permanently.
It is desirable to use this LSI under electrical characteristic conditions during general operation.
Otherwise, this LSI may malfunction or reduced LSI reliability may result.
°C
°C
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S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
DC CHARACTERISTICS
Table 20. DC Characteristics
(VSS = 0V, VDD = 2.4 to 3.6V, Ta = -40 to 85°C)
Operating voltage (1)
Operating voltage (2)
Input voltage
Item Symbol
High VIH0.8VDD
Low VILVSS- 0.2VDD
Output
voltage
High VOHIOH = -0.5mA 0.8VDD
Low VOLIOL = 0.5mA VSS- 0.2VDD
VDD2.4 - 3.6 V VDD *1
V0 4.0 - 15.0 V V0 *2
Input leakage current IILVIN = VDD or VSS- 1.0 - + 1.0
Condition Min. Typ. Max Unit Pin used
- VDD
V *3
- VDD
V *4
µA
*5
Output leakage current
LCD driver ON
resistance
Oscillator
frequency (1)
Oscillator
frequency (2)
Voltage converter
input voltage
Voltage converter
output voltage
Voltage regulator
operating voltage
Voltage follower
operating voltage
Reference voltage
IOZVIN = VDD or VSS- 3.0 - + 3.0
RONTa = 25°C, V0 = 8V - 2.0 3.0 kΩ
Internal fOSC17 22 27
External fCL
Internal fOSC20 25 30
External fCL
Ta = 25°C
Duty ratio = 1/65
Ta = 25°C
Duty ratio = 1/49
× 2
× 3
4.25 5.50 6.75
3.33 4.17 5.00
2.4 - 3.6
2.4 - 3.6
VDD
× 4
× 5
2.4 - 3.6
2.4 - 3.0
×2 / ×3 / ×4 / ×5
VOUT
voltage conversion
95 99 - % VOUT
(no-load )
VOUT 4.0 - 15.0 V VOUT
V0 4.0 - 15.0 V V0 *9
VREF0
-0.05%/°C
1.94 2.00 2.06 V *10
Ta = 25°C
VREF1
-0.2%/°C
1.94 2.00 2.06 V *10
µA
*6
SEGn
COMn *7
kHz
kHz
CL *8
CL *8
V VDD
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
Dynamic Current Consumption (1) when the Built-in Power Circuit is OFF (At Operate Mode)
(Ta = 25 °C)
Item Symbol
Dynamic current
consumption (1)
IDD1
Condition Min. Typ. Max. Unit Pin used
VDD = 3.0V
V0 – VSS = 11.0V
1/65 duty ratio
- - 20 µΑ*11
Display pattern OFF
Dynamic Current Consumption (2) when the built-in power circuit is ON (At operate mode)
(Ta = 25 °C)
Item Symbol
Condition Min. Typ. Max. Unit Pin used
VDD = 3.0V,
quad boosting,
V0 – VSS = 11.0V,
1/65 duty ratio,
- 70 100
µΑ
*12
Display pattern OFF,
Dynamic current
consumption (2)
IDD2
Normal power mode
VDD = 3.0V,
quad boosting,
V0 – VSS = 11.0V,
1/65 duty ratio,
- 95 160
µΑ
*12
Display pattern checker,
Normal power mode
Current Consumption During Power Save Mode
Item Symbol
Sleep mode
current
Standby mode
current
IDDS1During sleep - - 2.0 µA
IDDS2
Condition Min. Typ. Max. Unit Pin used
During standby
- - 10.0
(Ta = 25 °C)
µA
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S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
Table 21. The Relationship between Oscillation Frequency and Frame Frequency
Duty Ratio Item fCLfM
1/65
On-chip oscillator circuit is used
fOSC
4
fOSC
8 × 65
fOSC
On-chip oscillator circuit is not used
External input (fCL)
2 × 65
1/49
On-chip oscillator circuit is used
fOSC
6
fOSC
12 × 49
fOSC
On-chip oscillator circuit is not used
External input (fCL)
2 × 49
1/33
On-chip oscillator circuit is used
fOSC
8
fOSC
16 × 33
fOSC
On-chip oscillator circuit is not used
External input (fCL)
2 × 33
(fOSC: oscillation frequency, fCL: display clock frequency, fM: LCD AC signal frequency)
[* Remark Solves]
*1. Though the wide range of operating voltages is guaranteed, a spike voltage change may affect the voltage
assurance during access from the MPU.
*2. In case of external power supply is applied.
*3. CS1B, CS2, RS, DB0 to DB7, E_RD, RW_WR, RESETB, MS, MI, PS, INTRS, HPM, TEMPS, BSTS,
DCDC5B, CLS, CL, M, DISP pins.
*4. DB0 to DB7, M, FRS, DISP, CL pins.
*5. CS1B, CS2, RS, DB [7:0], E_RD, RW_WR, RESETB, MS, MI, PS, INTRS, HPM, TEMPS, BSTS, DCDC5B,
CLS, CL, M, DISP pins.
*6. Applies when the DB [7:0], M, DISP, and CL pins are in high impedance.
*7. Resistance value when ± 0.1[mA] is applied during the ON status of the output pin SEGn or COMn.
RON= ∆V / 0.1 [kΩ] (∆V: voltage change when ± 0.1[mA] is applied in the ON status.)
*8. See table 21 for the relationship between oscillation frequency and frame frequency.
*9. The voltage regulator circuit adjusts V0 within the voltage follower operating voltage range
*10. On-chip reference voltage source of the voltage regulator circuit to adjust V0.
*11,12. Applies to the case where the on-chip oscillation circuit is used and no access is made from the MPU.
The current consumption, when the built-in power supply circuit is ON or OFF.
The current flowing through voltage regulation resistors (Ra and Rb) is not included.
It does not include the current of the LCD panel capacity, wiring capacity, etc.
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713
REFERENCE DATA
IDD1 vs. VDD
* Test Condition: Temperature: 25°C & 85°C, V0 = 11V (External), TEMPS = 'L', 1/65 duty, Normal Power Mode
IDD1
[uA]
10.00
8.00
6.00
4.00
2.00
0.00
VDD vs. I
DD1
(Pattern Off)
2.42.73.03.33.64.04.55.05.5
VDD [V]
Figure 31. Display Pattern is OFF
11.0V, 1/65 Duty (25°C)
11.0V, 1/65 Duty (85°C)
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S6B1713 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
DD2
IDD2 vs. VDD
* Test Condition: Temperature: 25°C & 85°C, 1/65 duty, Quad Boosting, RR = 6, EV = 32
VDD vs. IDD2 (Pattern Off)
80.00
70.00
60.00
I
[uA]
IDD2
[uA]
50.00
40.00
30.00
20.00
10.00
0.00
180.00
160.00
140.00
120.00
100.00
80.00
60.00
40.00
20.00
0.00
1/65 Duty (25°C)
1/65 Duty (85°C)
2.42.73.03.33.64.04.55.0
VDD [V]
Figure 32. Display Pattern is OFF
VDD vs. IDD2 (Checker Pattern)
1/65 Duty (25°C)
1/65 Duty (85°C)
2.42.73.03.33.64.04.55.0
VDD [V]
Figure 33. Display Pattern is Checker
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65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD S6B1713