Bus cycle time Instruction cycle time System clock oscillation Oscillation frequency Voltage Note
12MHz OCR7=0 0.5µs 1µs Ceramic (CF)
6MHz
3MHz OCR7=0 2.0µs 4µs Ceramic (CF)
1.5MHz
7.5µs 15µs OCR7=0
3.8µs 7.5µs
183µs 366µs OCR7=0
91.5 183µs
Internal RC 800kHz 2.5-6.0V
Crystal (XTAL) 32.768kHz 2.5-6.0V
4.5-6.0V
OCR7=1
2.5-6.0V
OCR7=1
OCR7=1
OCR7=1
* Bus cycle time means ROM-read period.
OCR7 : Bit-7 of the oscillation control register.
(4) Ports
- Input / output ports : 6 ports (47 terminals)
Input/output port programmable in a nibble : 1 port (8 terminals)
Input/output port programmable every function unit : 1 port (7 terminals)
Input/output port programmable in a bit : 4 ports (32 terminals)
- Input port : 1 port (4 terminals)
- Ports at external memory mode
1. External Latch
Port 0 : Address output of lower 8-bit, input/output of data
Port 2 : Address output of upper 8-bit
Port 5 : Bank address output
2. No External Latch
Port 0 : Input/output of data
Port 3 : Address output of lower 8-bit
Port 2 : Address output of upper 8-bit
Port 5 : Bank address output
(Set whether the external latch is used or not by program.)
- LCD segment driver output ports : 48 terminals
(Function change available : segment/common)
- LCD common driver output ports : 16 terminals
(1/64 duty maximum : at using segment output ports as common output by mask option)
(5) External memory access
- Externa l progra m memor y acce ss function
External program memory capacity : 64K bytes
Programable switch internal program/external program
(At initial : Internal program)
Enable/disable control of external program --> internal program memory switch
No.6723-2/28
Page 3
LC868016/12/08A
Ports
Port 2 : Address output of upper 8-bit
Uses
EROE terminal (OE signal of the external ROM)
1. Using the external latch
Port 0 : Address output of lower 8-bit, data input port
Uses the ADLC terminal (latch clock of the lower 8-bit address signal)
2. Not use the external latch
Port 0 : Input port of data
Port 3 : Address output of lowe r 8-bit
- External data memory access function
Using the LDC instruction
External memory capacity : 16M bytes
1. Internal prog ram memory
Switch the reference of internal ROM data/external ROM data by program.
2. External program memory
Reference external ROM data only.
Ports
Port 2 : Address output of upper 8-bit
Port 5 : Bank address output
Uses
EROE terminal (OE signal of the external ROM)
1. Using external latch
Port 0 : Address output of lower 8-bit, input port of data
Uses the ADLC terminal (latch clock of the lower 8-bit address signal)
2. Not use external latch
Port 0 : Input port of data
Port 3 : Address output of lowe r 8-bit
- External RAM memory access function
Using the LDX, STX instruction
External memory capacity : 16M bytes
Ports
Port 2 : Address output of upper 8-bit
Port 5 : Bank address output
Uses the P46 terminal (
Uses the P47 terminal (
OE signal of external RAM) : the LDX instruction execution
WE signal of external RAM) : the STX instruction execution
1. Using the external latch circuit
Port 0 : Address output of lower 8-bit, input/output port of data
Uses the ADLC terminal (latch clock of the lower 8-bit address signal)
2. Not use the external latch circuit
Port 0 : Input/output port of data
Port 3 : Address output of lowe r 8-bit
(6) LCD automatic display controller
- Display duty : 1/1 - 1/64 duty
- Display bias : 1/4, 1/5, 1/7, 1/9 bias
- Programmable character display / graphic display
- Character display
1. On-chip char acter generator ROM
ROM capacity : 8960 bits
Character font : 5 × 7 dots
Number of Characters : 256
2. LCD instruction
Display : ON/OFF
Cursor : ON/OFF/BLINK
Character blink : ON/OFF
Character scroll : Control by specified starting address
No.6723-3/28
Page 4
LC868016/12/08A
- Graphic display
LC868000 series : 1024 dots Maximum
External segment driver : Enable to extend of LCD drive
- LCD contrast
LCD display contrast programmable
- LCD display power supply
Doubler/Tripler circuit programmable
Doubler voltage in the tripler mode must not be used for LCD display power supply
If doubler voltage is used for LCD display power supply, the doubler mode must be selected by user program.
- LCD driver
Following three kinds of combination can be selected by mask option
No. Segment output port Common output port
1 48 16
2 32 32
3 0 64
(7) Serial-interface
- Two 8-bit serial-interface circuits
LSB first / MSB first function available
- Internal 8-bit baud-rate generator in common with two serial-interface circuits
Every 500ms overflow system for a clock application (using 32.768kHz crystal oscillation for Base timer clock)
The Base timer clock selectable ; 32.768kHz crystal oscillation, System clock, and programmable prescaler output of
Timer 0
(9) Buzzer output
- The Buzzer sound frequency selectable ; 4KHz, 2KHz
(10) Remote control receiver circuit (using P73/INT3/T0IN terminal)
- Noise rejection available
- The interrupt polarity selectable
(11) Watchdog timer
- The watchdog timer is taken on RC outside. (using P70/INT0 terminal)
- Watchdog timer operation selectable : interrupt system, system reset
Microcomputer allows 3 levels of interrupt; low level, high level, and highest level of multiplex interrupt. It can
specify a low level or a high level interrupt priority from INT2/T0L through port 0 or port 3 ( the above interrupt
number from three through nine). It can also specify a low level or the highest level interrupt priority to INT0 and
INT1.
(13) Sub-routine stack levels
- 128 levels (Max.) : stack area included in RAM area
(14) Multiplication and division
- 16 bits × 8-bit (7 instruction cycle times)
- 16 bits / 8-bit (7 instruction cycle times)
(15) Three oscillation circuits
- On-chip RC oscillation circuit using for the system clock, for the LCD display and for the step-up circuit.
- On-chip CF oscillation circuit using for the system clock and for the LCD display.
- On-chip crystal oscillation circuit using for the system clock, for time-base clock and for the LCD display.
(16) Standby function
- HALT mode function
The HALT mode is used to reduce the power dissipation. In this operation mode, the program execution is stopped.
This operation mode can be released by the interrupt request signals or setting to low level for the reset terminal
(
RES).
- HOLD mode function
The HOLD mode is used to freeze all the oscillations ;
RC (internal), CF and Crystal oscillations. This mode can be released by the following operations:
• Reset terminal (
RES) set to low level.
• Set to assigned level to INT0/1 terminals.
• Set to assigned level to Port 0/3.
(17) Factory shipment
- Chip
QIC160 package shipping available for sample evaluation.
INT0 input/HOLD release/N-ch Tr.
output for watchdog timer
INT1 input/HOLD release
INT2 input/timer 0 event input
INT3 input with noise filter/timer 0
event input
&
trailing
enable
enable
enable
enable
enable
enable
enable
enable
disable
disable
enable
enable
high
level
enable
enable
disable
disable
•Pull-up resistor :
Provided/Not provided
•Output form :
CMOS/ N-ch open drain
•Pull-up resistor :
Provided/Not provided
•Output form :
CMOS/ N-ch open drain
•Pull-up resistor :
Provided/Not provided
low
vector
level
enable
enable
disable
disable
03H
0BH
13H
1BH
No.6723-10/28
Page 11
LC868016/12/08A
Name No. I/O Function description Option
C1 to C16 65-50 O LCD output terminals for common S1 to S48 2-49 O LCD output terminals for segment LCD output terminals :
segment/common
RES
133 I Reset -
ADLC 131 O Address control signal for external memory -
EROE
132 O Enable signal of external ROM output -
XT1 134 I Input for 32.768kHz crystal oscillation
In case of non use, connect to VDD
XT2 135 O Output for 32.768kHz crystal oscillation
In case of non use, should be left unconnected
CF1 137 I Input for ceramic resonator oscillation
In case of non use, connect to VDD
CF2 138 O Output for ceramic resonator oscillation
In case of non use, should be left unconnected
-
-
-
-
* Port options can be specified in a bit.
* A state of port at initial
Pin name Input/output mode A state of pull-up resistor specified at pull-up option
Operating
temperature
range
Storage
temperature
range
Peak
output
current
Total
output
current
Peak
output
current
Total
output
current
VI(1) •Ports 71,72,73
•
RES
VI(2) VLCD VDD-21 VDD+0.3
VO(1) •C1 to C16
•S1 to S48
VO(2) •VOUT2,VOUT3
•CUP1,CUP2
VO(3) ADLC,
VIO(1) •Ports 0,1,2,3,4,5
•Port 70
IOPH(1) •Ports 0,1,2,3,4,5
•ADLC,
IOAH(1) •Ports 0,2,3
Σ
•C1-C16,S1-S48
•ADLC,
IOAH(2) Ports 1, 4, 5 Total all pins -25
Σ
IOPL(1) •Ports 0,1,2,3,4,5
•ADLC,
IOPL(2) Port 70 At each pin 15
IOAL(1) Port 0 Total all pins 40
Σ
IOAL(2) •Port 2
Σ
•ADLC,
IOAL(3) Port 3 Total all pins 40
Σ
IOAL(4) Ports 1, 5 Total all pins 40
Σ
IOAL(5) Port 4 Total all pins 40
Σ
IOAL(6) Port 70 Total all pins 15
Σ
IOAL(7) C1-C16,S1-S48 Total all pins 30
Σ
Topr -30 +70
Tstg -55 +125
EROE
EROE
EROE
EROE
EROE
-0.3 VDD+0.3
VLCD-0.3 VDD+0.3
VDD-21 VDD+0.3
-0.3 VDD+0.3
-0.3 VDD+0.3
•
CMOS output
•
At each pin
Total all pins -25
At each pin 20
Total all pins 40
Ratings
[V]
DD
min. typ. max.
-4
unit
V
mA
C
°
Notes :
The specifications above are for a die mounted in a QIC160 type package.
However, we ship this product as a die only, not a package chip.
Therefore, the operational characteristics may vary depending on the user’s packaging techniques.
No.6723-12/28
Page 13
LC868016/12/08A
2. Recommended Operating Range at Ta=-30°C to +70°C, VSS=0V
Parameter Symbol Pins Conditions
Operating
supply voltage
range
Hold voltage VHD VDD RAMs and the
voltage
Input high
voltage
Input low
voltage
cycle time
Oscillation
frequency
range
(Note 1)
VDD(1) 0.98µs ≤ tCYC ≤
VDD(2) 1.9µs ≤ tCYC ≤
VDD(3)
VLCD VLCD
VIH(1) Port 0 (Schmitt) Output disable 2.5-6.0 0.4VDD
VIH(2) •Ports 1,2,4,5
VIH(3) •Port 70 for
VIH(4) Port 70 for watchdog
VIH(5) Port 3 Output disable 2.5-6.0 0.75VDD VDD
VIL(1) Port 0 (Schmitt) Output disable 2.5-6.0 VSS 0.2VDD
VIL(2) •Ports 1,2,4,5
VIL(3) •Port 70
VIL(4) Port 70 for watchdog
VIL(5) Port 3 Output disable 2.5-6.0 VSS 0.25VDD
CYC
t
FmCF(1) CF1, CF2 •12MHz
FmCF(2) CF1, CF2 •6MHz
FmCF(3) CF1, CF2 •3MHz
FmRC
FsXtal XT1, XT2 •32.768kHz
VDD
400µs
400µs
3.9µs ≤ tCYC ≤
400µs
registers hold
voltage at HOLD
mode.
Output disable 2.5-6.0 0.75VDD VDD
•Ports 72,73
(Schmitt)
Output N-channel
Port input/interrupt
•Port 71
RES
•
(Schmitt)
timer
•Ports 72,73 (Schmitt)
Port input/interrupt
•Port 71
RES
•
timer
Tr. OFF
Output N-channel
Tr. OFF
Output disable 2.5-6.0 VSS 0.25VDD
Output N-channel
Tr. OFF
Output N-channel
Tr. OFF
(ceramic resonator
oscillation)
•Refer to figure 1
(ceramic resonator
oscillation)
•Refer to figure 1
(ceramic resonator
oscillation)
•Refer to figure 1
oscillation Mask
option is ‘High’
•Internal RC
oscillation Mask
option is ‘Low’
(crysta l os cillation)
•Refer to figure 2
VDD[V] min. typ. max.
4.5-6.0 -2VDD VDD-4.5 LCD display
2.5-4.5 -VDD VDD-4.5
2.5-6.0 0.75VDD VDD
2.5-6.0 0.9VDD VDD
2.5-6.0 VSS 0.25VDD
2.5-6.0 VSS 0.8VDD
4.5-6.0 0.98 400 Operation
2.5-6.0 3.9 400
4.5-6.0 11.76 12 12.24
4.5-6.0 5.88 6 6.12
2.5-6.0 2.94 3 3.06
2.5-4.5 1.0 1.4 2.0 •Internal RC
4.5-6.0 0.8 1.3 1.8
2.5-4.5 0.5 0.9 1.2
4.5-6.0 0.4 0.75 1.0
2.5-6.0 32.768 kHz
Ratings
4.5 6.0
4.5 6.0
2.5 6.0
2.0 6.0
VDD
+0.9
unit
V
-1.0
µ
MHz
s
Continue.
No.6723-13/28
Page 14
LC868016/12/08A
Parameter Symbol Pins Conditions
Oscillation
stabilizing
time period
(Note 1)
tmsCF(1) CF1, CF2 •12MHz
(ceramic resonator
oscillation)
•Refer to figure 3
tmsCF(2) CF1, CF2 •6MHz
(ceramic resonator
oscillation)
•Refer to figure 3
(ceramic resonator
oscillation)
•Refer to figure 3
tssXtal XT1, XT2 •32.768kHz
(crysta l os cillation)
•Refer to figure 3
(Note 1) The oscillation constant is shown on table 1 and table 2.
Ratings
VDD[V] min. typ. max.
4.5-6.0 0.02 0.3
4.5-6.0 0.02 0.3
4.5-6.0 0.1 1 tmsCF(3) CF1, CF2 •3MHz
2.5-6.0 0.1 3
4.5-6.0 1 1.5
2.5-6.0 1 3
unit
ms
s
No.6723-14/28
Page 15
LC868016/12/08A
3. Electrical Characteristics at Ta=- 30°C to +70°C, VSS=0V
* Both C3 and C4 must use J rank (±5%) and CH characteristics.
(It is about the application which is not in need of high precision. Use K rank (±10%) and SL characteristics.)
(Notes) •Since the circuit pattern affects the oscillation frequency, place the oscillation-related parts as close to the oscillation
pins as possible with the shortest possible pattern length.
•For other oscillators, please request an evaluation of microcomputer and oscillator matching to the oscillator
manufacturer.
4.5 - 6.0 tCLCL-40 Address settling time tAVLL For ADLC
2.5 - 6.0 tCLCL-160
4.5 - 6.0 tCLCL-35 Address hold time tLLAX For ADLC
2.5 - 6.0 tCLCL-140
4.5 - 6.0 tCLCL-25 ADLC ! control signal tLLEL For
2.5 - 6.0 tCLCL-100
4.5 - 6.0 3tCLCL-35 EROE pulse width tELEH
2.5 - 6.0 3tCLCL-140
4.5 - 6.0 3tCLCL-125 Data delay time tELIV From
2.5 - 6.0 3tCLCL-400
4.5 - 6.0 0 Data hold time tEHIX For
2.5 - 6.0 0
4.5 - 6.0 tCLCL-8
2.5 - 6.0 tCLCL-32
tEHAV
IRA7-A0
unit
ns
tCLCL
Port 2
Port 3
EROE
Port 0
Port 2
Port 3
Port 5
A15-A8
A7-A0
A7-A0DATA
A15-A8
A7-A0
Bank
A15-A8
A7-A0
Figure 13 Timing of the external Program Memory/Data Memory
No.6723-25/28
Page 26
Ext ernal data memory timing
Parameter Symbol Pads and Conditions
pulse width tRLRH
RD
WR
pulse width tWLWH
Data address hold time tLLAX
For ADLC (at STX)
tAVLL For ADLC
time
ADLC ! control signal
tLLWL For
WR
WR
=1 tQVWH
WR
Control signal ! ADLC
tWHLH For
RD
WR
Refer to figure 14.
tCLCL
RD
RD
WR
LC868016/12/08A
Ratings
VDD[V] min. max.
4.5 - 6.0 6tCLCL-80
2.5 - 6.0 6tCLCL-320
4.5 - 6.0 6tCLCL-80
2.5 - 6.0 6tCLCL-320
4.5 - 6.0 2tCLCL-35 For ADLC (at LDX)
2.5 - 6.0 2tCLCL-140
4.5 - 6.0 2tCLCL-35
2.5 - 6.0 2tCLCL-140
4.5 - 6.0 5tCLCL-125 Data delay time tRLD V From RD
2.5 - 6.0 5tCLCL-400
4.5 - 6.0 0 Data hold time tRHDX From
2.5 - 6.0 0
4.5 - 6.0 2tCLCL-70 2tCLCL+70 Data floating time tRHDZ From
2.5 - 6.0 2tCLCL-280 2tCLCL+280
4.5 - 6.0 tCLCL-40 Data address setting
2.5 - 6.0 tCLCL-160
4.5 - 6.0 3tCLCL-50 3tCLCL+50 tLLRL For RD
2.5 - 6.0 3tCLCL-200 3tCLCL+200
4.5 - 6.0 3tCLCL-50 3tCLCL+50
2.5 - 6.0 3tCLCL-200 3tCLCL+200
4.5 - 6.0 tCLCL-60 Data settling time tQVWL For
2.5 - 6.0 tCLCL-240
4.5 - 6.0 7tCLCL-140 Data in
2.5 - 6.0 7tCLCL-560
4.5 - 6.0 tCLCL-50 Data hold time tWHQX From
2.5 - 6.0 tCLCL-200
4.5 - 6.0 tCLCL-50 tCLCL+50 tRHLH For
2.5 - 6.0 tCLCL-200 tCLCL+200
4.5 - 6.0 tCLCL-50 tCLCL+50
2.5 - 6.0 tCLCL-200 tCLCL+200
1 tCYC
unit
ns
SCLK
ADLC
EROE
RD
tAVLL tLLAX
Port 0
WR
Port 0
Port 2
Port 5
Port 3
tLLRL
tRLDV
(at reading)
A7-A0
tLLWL
tLLAX
(at writing)
A7-A0DATA
tQVWLtWHQX
tQVWH
A15-A8
Bank
A7-A0
tRLRHtRHLH
tRHDZ
tRHDX
DATAZ
tWLWHtWHLH
Figure 14 Timing of the external RAM
No.6723-26/28
Page 27
LC868016/12/08A
3
Evaluation Samp le (ES)
•
The factory shipment of this microcomputer is chip.
But there are two types of shipment of evaluation sample.
One type is chip and the other is package (QIC160).
If you selected package type, please refer to the following pin assignment and layout, and make the user target board.
• Pin Assignment of evaluation sample (Package type)