Display Elektronik DEM 16216 SYH-LY Product specification

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Display

Elektronik GmbH

DEM 16216 SYH-LY

Product specification

查询DEM16216SYH-LY供应商查询DEM16216SYH-LY供应商

LCD MODULE

Version : 1

08.04.2003

Page 2

GENERAL SPECIFICATION

DEM 16216 SYH-LY

CUSTOMER P/N

MODULE NO. :

VERSION NO.

0 ORIGINAL VERSION 2001/12/06

1 METAL FRAME CHANGED 2001/12/12

CHANGE DESCRIPTION DATE

PREPARED BY: HZJ DATE: 2001/12/12 APPROVED BY: MH DATE: 2001/04/08

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DEM 16216 SYH-LY Product Specification

CONTENTS

1. FUNCTIONS & FEATURES-------------------------------------------------------------------------------------------------- 2

2. MECHANICAL SPECIFICATIONS ----------------------------------------------------------------------------------------- 2

3. BLOCK DIAGRAM ------------------------------------------------------------------------------------------------------------- 2

4. EXTERNAL DIMENSIONS---------------------------------------------------------------------------------------------------3

5. PIN ASSIGNMENT-------------------------------------------------------------------------------------------------------------- 3

6.1 PCB DRAWING AND DESCRIPTION------------------------------------------------------------------------------------ 4

6.2 EXAMPLE APPLICATION-------------------------------------------------------------------------------------------------- 5

6.3 THE MODULE NO. IS PRINTED ON THE PCB----------------------------------------------------------------------- 5

7. BACKLIGHT & SWITCH------------------------------------------------------------------------------------------------------ 6

8. DISPLAY DATA RAM (DDRAM)------------------------------------------------------------------------------------------- 6

9. INSTRUCTION DESCRIPTION---------------------------------------------------------------------------------------------- 7

10. INTERFACE WITH MPU IN BUS MODE------------------------------------------------------------------------------- 11

1) INTERFACE WITH 8-BIT MPU -------------------------------------------------------------------------------------- 11

2) INTERFACE WITH 4-BIT MPU -------------------------------------------------------------------------------------- 11

11. INITIALIZING BY INSTRUCTION--------------------------------------------------------------------------------------- 12 11-1 8-BIT INTERFACE MODE--------------------------------------------------------------------------------------------- 12 11-2 4-BIT INTERFACE MODE --------------------------------------------------------------------------------------------- 13

12.MAXIMUM ABSOLUTE POWER RATINGS---------------------------------------------------------------------------- 14

13.ELECTRICAL CHARACTERISTICS--------------------------------------------------------------------------------------- 14 13-1-1 DC CHARACTERISTICS--------------------------------------------------------------------------------------------- 14 13-2-1 AC CHARACTERISTICS--------------------------------------------------------------------------------------------- 16 13-2-2 WRITE MODE----------------------------------------------------------------------------------------------------------- 17 13-2-3 READ MODE------------------------------------------------------------------------------------------------------------ 17

14.CHARACTER GENERATOR ROM (KS0070B-00)---------------------------------------------------------------------- 18

15. FRAME FREQUENCY -------------------------------------------------------------------------------------------------------------19

16. LCD MODULES HANDLING PRECAUTIONS ------------------------------------------------------------------------ 20

17. OTHERS ------------------------------------------------------------------------------------------------------------------------- 20

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DEM 16216 SYH-LY Product Specification

COM1~COM16

SEG1~SEG80

Figure 1.0

1.FUNCTIONS & FEATURES

l DEM 16216-Series LCD type:

MODULE TYPE LCD TYPE LCD-MODE

DEM 16216 SYH-LY STN Yellow Green Transflective Positive Mode

l Viewing Direction : 6 O’clock l Driving Scheme : 1/16 Duty Cycle, 1/5 Bias l Power Supply Voltage : 2.7 to 5.5V (typ. 5V) l Backlight Color : Yellow Green (lightbox) l V l Display Format : 16 x 2 Characters (5 x 8 dots, Formal : 192 Kinds ) l Internal Memory : CGROM (8,320 bits )

: DDRAM (80 x 8 bits for 80 Digits)

l Interface : Easy Interface with a 4-bit or 8-bit MPU

2. MECHANICAL SPECIFICATIONS

l Character Pitch : 3.55 (W) x 5.95 (H) mm l Character Size : 2.95 (W) x 5.55 (H) mm l Character Font : 5 x 8 dots l Dot Size : 0.55 (W) x 0.65 (H) mm l Dot Pitch : 0.60 (W) x 0.70 (H) mm

3. BLOCK DIAGRAM

(adjustable for best contrast) : 4.5V (typ.)

LCD

: CGRAM (64 x 8 bits)

DB0~DB7

E R/W RS V

VDD VSS

LCD

Controller

LSI

KS0070B

BACKLIGHT

LCD PANEL

2 Line x 16 Characters

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DEM 16216 SYH-LY Product Specification

4. EXTERNAL DIMENSIONS

Figure 2.0 External Dimensions For DEM 16216 SYH-LY

5. PIN ASSIGNMENT

Pin No. Symbol Function

1 VSS Ground terminal of module. 2 VDD Power terminal of module 2.7V to 5.5V. 3 V0 Power Supply for liquid crystal drive.

4 RS

5 R/W

6 E Read/Write Enable Signal 7 DB0 8 DB1

9 DB2 10 DB3 11 DB4 12 DB5 13 DB6 14 DB7 15 LED – (K) Please also refer to 6.1 PCB drawing and description. 16 LED + (A) Please also refer to 6.1 PCB drawing and description.

Bi-directional data bus, data transfer is performed once, thru DB0 to DB7, in the case of interface data. Length is 8-bits; and twice, thru DB4 to DB7 in the case of interface data length is 4bits. Upper four bits first then lower four bits.

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DEM 16216 SYH-LY Product Specification

6.1 PCB DRAWING AND DESCRIPTION

Figure 3.0

DESCRIPTION:

6-1-1.The polarity of the pin 15 and the pin 16:

symbol

J2,J4 Each solder-bridge Each open ------ Anode Cathode J3,J5 Each solder-bridge ------ Each open Cathode Anode

6-1-2. The metal-bezel should be on ground when the J1 is solder-Bridge. 6-1-3.The LED resistor should be bridged when the J6 is solder-Bridge. 6-1-4.The R7 and the R8 are the LED resistor. (R7=10 Ohm, R8=OPEN)

state

J3,J5 J2, J4

LED Polarity

15 Pin 16 Pin

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DEM 16216 SYH-LY Product Specification

J6R8R7J2J2

J1J3J5J4J5J4J3

6.2 Example application

6-2-1. The LED resistor should be bridged as following.

6-2-2. The 15 pin is the anode and the 16 pin is the cathode as following.

6-2-3.The 15 pin is the cathode and the 16 pin is the anode as following.

6-2-4. The metal-bezel is on ground as following.

6.3 The module No. is printed on the PCB.

Figure 4.0

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DEM 16216 SYH-LY Product Specification

KAK

dices

7. BACKLIGHT & SWITCH (Ta = -20 ~ +70°C)

Item Symbol Standard Value Unit Applicable Terminal Backlight Voltage V 5.0 Backlight Current I ~ 97

12 x 2

LED+ / LED-

Figure 5.0 Backlight for DEM 16216 SYH-LY

8. DISPLAY DATA RAM (DDRAM)

1 2 3 4 5 6 7 8 9 1011 12 13 14 15 16 00 0102 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 40 4142 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F

DISPLAY POSITION DDRAM ADDRESS

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DEM 16216 SYH-LY Product Specification

9.INSTRUCTION DESCRIPTION

Outline

To overcome the speed difference between the internal clock of KS0070B and the MPU clock, KS0070B performs internal operations by storing control information to IR or DR. The internal operation is determined according to the signal from MPU, composed of read/write and data bus (refer to table 5.) Instruction can be divided largely into four kinds: (1) KS0070B function set instructions (set display methods, set data length, etc.) (2) Address set instructions to internal RAM. (3) Data transfer instructions with internal RAM. (4) Others.

The address of the internal RAM is automatically increased or decreased by 1. *NOTE: During internal operation, busy flag (DB7) is read”1”. Busy flag check must be preceded by the next

instruction. When you make an MPU program with checking the busy flag (DB7), it must be necessary 1/2 fosc for executing the next instruction by falling E signal after the busy flag (DB7) goes to “0”.

Contents

1) Clear display

RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

0 0 0 0 0 0 0 0 0 1

Clear all the display data by writing “20H”(space code) to all DDRAM address, and set the DDRAM addresses to “00H” in the AC (address counter). Return cursor to original status, namely, bring the cursor to the left edge on first line of the display. Make entry mode increment (I/D=“1”).

2) Return home

RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

0 0 0 0 0 0 0 0 1 x

Return home is the cursor return home instruction. Set DDRAM address to “00H” in the address counter. Return cursor to its original site and return display to its original status, if shifted. Contents of DDRAM does not change.

3) Entry mode set

RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

0 0 0 0 0 0 0 1 I/D SH

Set the moving direction of cursor and display. I/D: increment/decrement of DDRAM address is increased by 1. When I/D=”1”, cursor/blink moves to right and DDRAM address is increased by 1. When I/D=”0”, cursor/blink moves to left and DDRAM address is increased by 1. CGRAM operates the same as DDRAM, when reading from or writing to CGRAM.

SH: shift of entire display When DDRAM is in read (CGRAM read/write) operation or SH=”0”, shift of entire display is not performed. If SH=”1” and in DDRAM write operation, shift of entire display is performed according to I/D value (I/D=”1”: shift left, I/D=”0”: shift right).

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DEM 16216 SYH-LY Product Specification

4) Display ON/OFF control

RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

0 0 0 0 0 0 1 D C B

Control display/cursor/blink ON/OFF 1-bit register. D: Display ON/OFF control bit When D=”1”, entire display is turned on. When D=”0’, display is turned off, but display data remains in DDRAM.

C: cursor or ON/OFF control bit When C=”1”, cursor is turned on. When C=”0”, cursor disappears in current display, but I/D register retains its dat.

B: cursor blink ON/OFF control bit When B=”1”, cursor blink is on, which performs alternately between all the “1” data and display characters at the cursor position. When B=”0”, blink is off

5) Cursor or display shift

RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

0 0 0 0 0 1 S/C R/L X X

Without writing or reading the display data, shift right/left cursor position or display. This instruction is used to correct or search display data. (refer to table 40 During 2-line mode display, cursor moves to the 2nd line after the 40st digit of the 1st line. Note tat display shift is performed simultaneously in all the lines. When displayed data is shifted repeatedly, each line shifts individually. When display shift is performed, the contents of the address counter are not changed.

Table 4. shift patterns according to S/C and R/L bits

S/C R/L operation

0 0 Shift cursor to the left, AC is decreased by 1

0 1 Shift cursor to the right, AC is decreased by 1 1 0 Shift all the display to the left, cursor moves according to the display 1 1 Shift all the display to the right, cursor moves according to the display

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DEM 16216 SYH-LY Product Specification

6) Function set

RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

0 0 0 0 0 DL N F X X

DL: Interface data length control bit When DL=”1”, it means 8-bit bus mode with MPU.

When DL=”0”, it means 4-bit bus mode with MPU. So to speak, DL is a signal to select 8-bit or 4-bit bus mode. When 4- bit bus mode, it needs to transfer 4-bit data in two parts.

N: display line number control bit When N=”0”, it means 1-line display mode. When N=”1”, it means 2-line display mode.

F: display font type control bit When F=”0”, 5 x 7 dots format display mode. When F=”1”, 5 x 10 dots format display mode.

7) Set CGRAM address

RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

0 0 0 1 AC5 AC4 AC3 AC2 AC1 AC0

Set CGRAM address to AC. THIS INSTRUCTION MAKES CGRAM data available from MPU.

8) Set DDRAM address

RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

0 0 1 AC6 AC5 AC4 AC3 AC2 AC1 AC0

Set DDRAM address to AC This instruction makes DDRAM data available from MPU. When in 1-line display mode (N=0), DDRAM address is from “00H” to “4FH”. In 2-line display mode (N=1), DDRAM address in the 1st line is from “00H” to “27H”, and DDRAM address in the 2nd line is from “40H” to “67H”.

9) Read busy flab & address

RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

0 0 BF AC6 AC5 AC4 AC3 AC2 AC1 AC0

This instruction shows whether KS0070B is in internal operation or not. If the resultant BF is “1”, it means the internal operation is in progress and your have to wait until BF is low. Then the next instruction can be performed. In this instruction your can also read the value of the address counter.

10) Write data to RAM

RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

1 0 D7 D6 D5 D4 D3 D2 D1 D0

Write binary 8-bit data to DDRAM / CGRAM The selection of RAM from DDRAM, and CGRAM, is set by the previous address set instruction: DDRAM address set, and CGRAM address set. RAM set instruction can also determine the AC direction to RAM. After write operation, the address is automatically increased/decreased by 1, according to the entry mode.

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DEM 16216 SYH-LY Product Specification

11) Read data to RAM

RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

1 1 D7 D6 D5 D4 D3 D2 D1 D0

Read binary 8-bit data from DDRAM/CGRAM. The selection of RAM is set by the previous address set instruction. If the address set instruction of RAM is not performed before this instruction, the data that is read first is invalid, because the direction of AC is not determined. If you read RAM data several times without RAM address set instruction before read operation, you can get correct RAM data. In the case of DDRAM read operation, cursor shift instruction plays the same role as DDRAM address set instruction; it also transfers RAM data to the output data register. After read operation the address counter is automatically increased/decreased by 1 according to the entry mode. After CGRAM read operation, display shift may not be executed correctly.

In the case of RAM write operation, after this AC is increased/decreased by 1 like read operation. At his time, AC indicates the next address position, but your can read only the previous data by the read instruction.

Table 5.instruction table

Instruction Code

Instruction

Clear

Display

Return

Home

Entry Mode

set

Display

ON/OFF

Control

Cursor or

Display shift

Function set 0 0 0 0 1 DL N F X X

Set

CGRAM

address

Set

CGRAM

address

Read busy

flag and

address

Write data

to RAM

Read data to

RAM

RS R/W DB7 DB6 DB5 DB4 DB3 DB2

0 0 0 0 0 0 0 0 0 1

0 0 0 0 0 0 0 0 1 x

0 0 0 0 0 0 0 1 I/D SH

0 0 0 0 0 0 1 D C B

0 0 0 0 0 1 S/C R/L X X

0 0 0 1 AC5 AC4 AC3 AC2

0 0 1 AC6 AC5 AC4 AC3 AC2

0 1 BF AC6 AC5 AC4 AC3 AC2

1 0 D7 D6 D5 D4 D3 D2 D1 D0 1 1 D7 D6 D5 D4 D3 D2 D1 D0

DB0

AC0

Description

Write “20H” to DDRAM and set DDRAM address to “00H” from AC. Set DDRAM address to “00H”from AC and return cursor to its original position if shifted. Assign cursor moving direction and enable the shift of entire display. Set display (D), cursor(C), and blinking of cursor (B) on/off control bit. Set cursor moving and display shift control bit, and the direction without changing of DDRAM data. Set interface data length (DL:4bit/8-bit), numbers of display line (N:1-line/2-line, display font type (F:0…)

Set CGRAM address in address counter.

Set DDRAM address in address counter.

Whether during internal operation or not can be known by reading BF. The contents of address counter can also be read. Write data into internal RAM (DDRAM/CGRAM). Read data into internal RAM (DDRAM/CGRAM).

Execution

time

(fosc=

270kHz)

1.53 ms

1.53ms

39us

0us

43us 43us

NOTE: when you make an MPU program with checking the busy flag (DB7), it must be necessary 1/2 Fosc for executing the next instruction by falling E signal after the busy flag (DB7) goes to “0”.

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DEM 16216 SYH-LY Product Specification

Figure 6.0 Example of 8-bit bus mode timing diagram

Figure 7.0 Example of 4-bit bus mode timing

10. INTERFACE WITH MPU IN BUS MODE

1) Interface with 8-bit MPU

When interfacing data length are 8-bit, transfer is performed all at once through 8-ports, from DB0 to DB7. An example of the timing sequence is shown below.

R/W

internal Singnal

DB7

Data

instruction

internal Operation

Busy Busy

Busy Flag

check

Busy Flag

check

Busy

Busy Flag

check

Data

instruction

2) Interface with 4-bit MPU

When interfacing data length are 4-bit, only 4 ports, from DB4 to DB7, are used as data bus. At first, higher 4-bit (in case of 8-bit bus mode, the contents of DB4 to DB7) are transferred, and then the lower 4-bit (in case of 8-bit bus mode, the contents of DB0 to DB3) are transferred. So transfer is performed in two parts. Busy flag outputs”1”after the second transfer are ended. Example of timing sequence is shown below.

R/W

internal Singnal

DB7

instruction

internal Operation

Busy

Busy Flag check

Busy

Busy Flag Check

instruction

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DEM 16216 SYH-LY Product Specification

11. INITIALIZING BY INSTRUCTION 11-1. 8-bit interface mode

Power on

Wait for more than 30ms

after VDD rises to 4.5V

Function set

RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

0 0 0 0 1 1 N F X X 0 5 x 7 dots

Wait for more than 39us

Display on/off control

RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

0 0 0 0 0 0 1 D C B 0 cursor off

Wait for more than 39us 0 blink off

Display clear

RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

0 0 0 0 0 0 0 0 0 1

Condition : fosc=270khz

0 1-line mode

1 2-line mode

1 5 x 10 dots

0 display off 1 display on

1 cursor on

1 blink on

Wait for more than 1.53ms

Entry mode set

RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

0 0 0 0 0 0 0 1 I/D SH

Initialization end

I/D

0 decrement mode 1 increment mode

0 entire shift off 1 entire shift on

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DEM 16216 SYH-LY Product Specification

11-2. 4-bit interface mode

Power on

Wait for more than 30ms

after VDD rises to 4.5v

Function set

RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 1-line mode

0 0 0 0 1 0 X X X X 0 0 0 0 1 0 X X X X 0 5 x 7 dots 0 0 N F X X X F X X

Wait for more than 39us

Display on/off control 0 display off

RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

0 0 0 0 0 0 X X X X 0 cursor off 0 0 1 D C B X X X X

Wait for more than 39us

Condition : fosc=270khz

1 2-line mode

1 5 x 10 dots

1 Display on

1 cursor on 0 blink off 1 blink on

Display clear

RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

0 0 0 0 0 0 X X X X 0 0 0 0 0 1 X X X X

Wait for more than 1.53ms

Entry mode set 0 decrement mode

RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

0 0 0 0 0 0 X X X X 0 entire shift off 0 0 0 1 I/D SH X X X X

Initialization end

I/D

1 increment mode

1 entire shift on

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DEM 16216 SYH-LY Product Specification

12. MAXIMUM ABSOLUTE POWER RATINGS

Item Symbol Standard value

Power supply voltage (1) V Power supply voltage (2) V Input voltage

Volt. For BL

VLED1 4 ~ 4.5

LCD

-0.3 ~ +7.0

VDD-15.0 ~ VDD+0.3

-0.3 ~ VDD+0.3

Unit

V V

Operating temperature Topr -20 ~ +70 Storage temperature

Tstg

-25 ~ +75 °C

13. ELECTRICAL CHARACTERISTICS

13-1-1 DC Characteristics (VDD = 4.5V ~ 5.5V, Ta = -25 ~ +75°C)

Item Symbol

Operating Voltage V

Supply Current

Input Voltage(1)

(except OSC1)

Input Voltage(2)

( OSC1)

V V

DD1

DD2

IL1

IH1

IL2

IH2

Standard Value

MIN TYP MAX

4.5 --- 5.5

---- 0.7 1.0

---- 0.4 0.6

-0.3 -- 0.6

2.2 -- V

-0.2 -- 1.0

VDD-1.0 -- V

Resistor oscillation external

°C

Test

Condition

-------

Ceramic oscillation

fosc=250kHz

clock operation

fosc=270kHz

--------

---------

----------

Unit

Output Voltage (1)

(DB0 to DB7)

Output Voltage (2)

(except DB0 to DB7)

Voltage Drop

Input Leakage Current I

Input Low Current I

Internal Clock

(external Rf)

External Clock

OL1

OH1

OL2

OH2

COM

SEG

Duty 45 50 55

tR,t

LCD Driving Voltage VLCD

--- ---- 0.4

2.4 --- ----

------ --- 0.1VDD

0.9VDD --- -----

----- --- 1

------ --- 1

-1 --- 1 VIN=0 V to VDD uA

-50 -125 -250

190 270 350 150 250 350

--- --- 0.2

4.6

--- 10.0 VDD-V5 (1/5,1/4 Bias) V

IOL=1.2uA

IOH=-0.205mA

IOL=40uA

IOH=-40uA

IO=±0.1 mA

VIN=0V,VDD=5V(pull up)

Rf = 91kΩ ± 2%

(VDD=5V)

----

kHz kHz

% us

Page 17

DEM 16216 SYH-LY Product Specification

(CONTINUED)

(VDD = 2.7V ~ 4.5V, Ta = -25 ~ +75°C)

Item Symbol

Standard Value

MIN TYP MAX

Test

Condition

Unit

Operating Voltage V

Supply Current

Input Voltage(1)

(except OSC1)

Input Voltage(2)

( OSC1)

Output Voltage (1)

(DB0 to DB7)

Output Voltage (2)

(except DB0 to DB7)

Voltage Drop

V V V

DD1

DD2

IL1

IH1

IL2

IH2

OL1

OH1

OL2

OH2

COM

SEG

2.7 --- 4.5

---- 0.3 0.5

---- 0.17 0.3

-0.3 -- 0.4

0.7V

-- V

-- 0.2V

0.7V

-- V

--- ---- 0.4

2.0 --- ----

------ --- 0.2VDD

0.8VDD --- -----

----- --- 1

------ --- 1.5

-------

Ceramic oscillation

fosc=250kHz

Resistor oscillation

external clock operation

fosc=270kHz

--------

---------

----------

IOL=0.1mA

IOH=-0.1mA

IOL=40uA

IOH=-40uA

IO=±0.1 mA

Input Leakage Current I

Input Low Current I

Internal Clock

(external Rf)

External Clock

Duty 45 50 55

tR,t

LCD Driving Voltage VLCD

-1 --- 1 VIN=0 V to VDD uA

-10 -50 -120

190 250 350 125 270 350

--- --- 0.2

3.0

--- 10.0 VDD-V5 (1/5,1/4 Bias) V

VIN=0V,VDD=3V(pull up)

Rf = 75kΩ ± 2%

(VDD=3V)

----

kHz kHz

% us

Page 18

DEM 16216 SYH-LY Product Specification

13-2-1 AC Characteristics

= 4.5V ~ 5.5V, Ta = -25 ~ +75°C)

Mode Item Symbol Min Typ Max

(1) Write Mode (refer to 13-2-2

write mode )

(2) Read Mode (refer to 13-2-3

read mode )

E Cycle Time t E Rise/Fall Time tR,t E Pulse Width (High, Low) t

R/W and RS Setup Time t

su1

R/W and RS Hold Time t Data Setup Time t

su2

Data Hold Time t E Cycle Time t E Rise/Fall Time tR,t E Pulse Width (High, Low) t

R/W and RS Setup Time t R/W and RS Hold Time t

Data Out Delay Time t Data Hold Time t

500 --- ---

--- --- 25

220 --- ---

40 --- --10 --- ---

60 --- --10 --- ---

500 --- ---

--- --- 25

220 --- ---

40 --- --10 --- ---

--- --- 120

20 --- ---

Unit

= 2.7V ~ 4.5V, Ta = -20 ~ +70°C)

Mode Item Symbol Min Typ Max

(3) Write Mode (refer to 13-2-2

write mode )

(4) Read Mode (refer to 13-2-3

read mode )

E Cycle Time t E Rise/Fall Time tR,t E Pulse Width (High, Low) t

R/W and RS Setup Time t

su1

R/W and RS Hold Time t Data Setup Time t

su2

Data Hold Time t E Cycle Time t E Rise/Fall Time tR,t E Pulse Width (High, Low) t

R/W and RS Setup Time t R/W and RS Hold Time t

Data Out Delay Time t

1400 --- ---

--- --- 25

400 --- ---

60 --- --20 --- ---

140 --- ---

10 --- ---

1400 --- ---

--- --- 25

450 --- ---

60 --- --20 --- ---

--- --- 360

Unit

Data Hold Time t

5 --- ---

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DEM 16216 SYH-LY Product Specification

13-2-2 Write mode

Figure 8.0

13-2-3 Read mode

Figure 9.0

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DEM 16216 SYH-LY Product Specification

14. CHARACTER GENERATOR ROM (KS0070B-00)

Upper(4bit)

Lowerr(4bit)

LLLL

LLLH

LLHL

LLHH

LHLL

LHLH

LHHL

LLLL

CG RAM

(1)

(2)

(3)

(4)

(5)

(6)

(7)

LLHL LLHH LHLL LHLH LHHL LHHH HLLL HLLH HLHL HLHH HHLL HHLH HHHL HHHH

LHHH

HLLL

HLLH

HLHL

HLHH

HHLL

HHLH

HHHL

(8)

(1)

(2)

(3)

(4)

(5)

(6)

(7)

HHHH

(8)

Page 21

DEM 16216 SYH-LY Product Specification

Table 3. Relationship Between character Code (DDRAM) and Character Pattern (CGRAM)

Character Code ( DDRAM data ) CGRAM Address CGRAM Data

D7 D6 D5 D4 D3 D2 D1 D0 A5 A4 A3 A2 A1 A0 P7 P6 P5 P4 P3 P2 P1 P0

0 0 0 0 x 0 0 0 0 0 0 0 0 0 x x x 0 1 1 1 0 Pattern 1

0 0 1 1 0 0 0 1 0 1 0 1 0 0 0 1 0 1 1 1 1 1 1 1 1 0 0 1 0 0 0 1 1 0 1 1 0 0 0 1 1 1 0 1 0 0 0 1 1 1 1 0 0 0 0 0

0 0 0 0 x 1 1 1 1 1 1 0 0 0 x x x 1 0 0 0 1 Pattern 8

0 0 1 1 0 0 0 1 0 1 0 1 0 0 0 1 0 1 1 1 1 1 1 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 1

0 0 0 0 0 0 0 0 0

0 0 0 0 0

Pattern

number

1 1 1

"x": don't care

15. FRAME FREQUENCY (1/16 duty cycle )

Page 22

DEM 16216 SYH-LY Product Specification

16. LCD Modules Handling Precautions

n The display panel is made of glass. Do not subject it to a mechanical shock by dropping it from a

high place, etc.

n If the display panel is damaged and the liquid crystal substance inside it leaks out, do not get any

in your mouth. If the substance come into contact with your skin or clothes promptly wash it off using soap and water.

n Do not apply excessive force to the display surface or the adjoining areas since this may cause the

color tone to vary.

n The polarizer covering the display surface of the LCD module is soft and easily scratched. Handle

this polarize carefully.

n To prevent destruction of the elements by static electricity, be careful to maintain an optimum

work environment.

-Be sure to ground the body when handling the LCD module.

-Tools required for assembly, such as soldering irons, must be properly grounded.

-To reduce the amount of static electricity generated, do not conduct assembly and other work under dry conditions.

-The LCD module is coated with a film to protect the display surface. Exercise care when peeling off this protective film since static electricity may be generated.

n Storage precautions

When storing the LCD modules, avoid exposure to direct sunlight or to the light of fluorescent lamps. Keep the modules in bags designed to prevent static electricity charging under low temperature / normal humidity conditions (avoid high temperature / high humidity and low temperatures below 0°C).Whenever possible, the LCD modules should be stored in the same conditions in which they were shipped from our company.

17. Others

n Liquid crystals solidify at low temperature (below the storage temperature range) leading to

defective orientation of liquid crystal or the generation of air bubbles (black or white). Air bubbles may also be generated if the module is subjected to a strong shock at a low temperature.

n If the LCD modules have been operating for a long time showing the same display patterns may

remain on the screen as ghost images and a slight contrast irregularity may also appear. Abnormal operating status can be resumed to be normal condition by suspending use for some time. It should be noted that this phenomena does not adversely affect performance reliability.

n To minimize the performance degradation of the LCD modules resulting from caused by static

electricity, etc. exercise care to avoid holding the following sections when handling the modules:

- Exposed area of the printed circuit board

- Terminal electrode sections