Home Products COG LCD WO320240D

Chip on Glass LCD Module 320x240

Model No. WO320240D

►COG LCD Display
►Graphic LCD
►320 x 240 dots includes cursor
►Built-in controller RA8835
►+3.3V/+5V power supply
►1/240 duty cycle
►Interface : 6800/8080


WO320240D is a monochrome graphic LCD module made of 320x240 dot matrix format. This STN COG module is built in with RA8835 controller IC; it supports 6800 and 8080 parallel interface. This COG module WO240320D is having the same outline dimension and VA size as TAB module WX320240D, but AA size is different. The WO320240D is an alternative item to replace WX320240D which TAB IC had been phased out. Comparing WO320240D (COG) to WX320240D (TAB), except the module structure is different; the outline dimension, VA size, interface, pin assignment, main electrical characteristics are the same, just AA size is a little different. If customers don’t need controller IC on your module, please choose WO320240G as option.

The supply voltage for logic of WO320240D is 3.0V to 3.6V, typical value 3.3V, 1/240 duty circle. This module can be operating at temperatures from -20℃ to +70℃; its storage temperatures range from -30℃ to +80℃. WO320240D is available in FSTN positive LCD and with White LED backlight; please contact us if you need different LCD type and LED combination.



Chip on Glass LCD Module 320x240 - WO320240D - Winstar Display


Interface Pin Function

Pin No. Symbol Level Description
1 VSS   Ground
2 VDD   Power supply for Logic
3 VO (Variable) Operation voltage LCD driving
4 A0 H/L H:Data  L:Instruction
5 ___
H 8080 family: Write signal, 6800 family: R/W signal
6 ___
L 8080 family: Read signal, 6800 family: Enable clock
7-14 DB0-DB7 H/L DB0 Data bus line
15 ___
H/L Chip Enable
16 ___
H/L Reset
17 VEE   Positive voltage output
18 SEL1 H/L 8080 OR 6800 Family Interface Select ; H:68xx , L:80xx
19 A   Power supply for B/L+
20 K   Power supply for B/L-

Mechanical Data

Item Standard Value Unit
Number of dots 320x240
Outline dimension 94.7 x 83.3 x 8.6 max mm
View area 81.4 x 61.0 mm
Active area 76.785 x 57.11 mm
Dot size 0.223 x 0.225 mm
Dot pitch 0.238 x 0.24 mm
Duty 1/240
Backlight LED
IC RA8835

Absolute Maximum Ratings

Item Symbol Min Typ Max Unit
Operating Temperature TOP -20 +70
Storage Temperature TST -30 +80
Input Voltage VIN -0.3 VDD+0.3 V
Supply Voltage For Logic VDD-VSS -0.3 7.0 V
Supply Voltage For LCD VDD -V0 0 32 V

Electrical Characteristics

Item Symbol Condition Min Typ Max Unit
Supply Voltage For Logic VDD-VSS 3.0 3.3 3.6 V
VDD-VSS 4.7 5.0 5.3 V
Supply Voltage For LCD VOP Ta=-20℃



Input High Volt. VIH 0.5VDD VDD V
Input Low Volt. VIL VSS 0.2VDD V
Output High Volt. VOH VDD-0.4 V
Output Low Volt. VOL VSS+0.4 V
Supply Current IDD VDD=3.3V 63.5 100.0 mA
IDD VDD=5.0V 52.0 80.0 mA

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