Home Produtos LCD COG WO256128A

Model No. WO256128A

►LCD COG
►Módulo Display LCD Gráfico
►256x128 pontos
►Controlador ST75256 integrado
►Alimentação +3,3V
►1/128 duty cycle
►Interface : 6800/8080/SPI/I2C

DRAWING

Graphic COG LCD 256x128, 256x128 LCD - WO256128A

Data source ref: WO256128A-TFH#

SPECIFICATIONS

Interface Pin Function

Pin No. Symbol Description
1 ITOGND ESD PIN
2 VG Power of SEG-drivers
3 V0 Positive operating voltage of COM-drivers
4 XV0 Negative operating voltage of COM-drivers
5  CA1P DC/DC Voltage converte pin
6 CA1N DC/DC Voltage converte pin
7 VDDA +3.3V
8 VDD +3.3V
9 VSS ground
10 COMSCN Set scan directing of COM
11 IF1 These pins select interface operation mode
IF1 IF0 MPU interface type
L L 4-line serial interface
L H IIC serial interface
H L 8-bit 6800 parallel interface
H H 8-bit 8080 parallel interface
Note: Refer to "Parallel / Serial Interface" for detailed information.  
12 IF0
13 CSB Chip select input pin
14 A0 Whether the access is related to data or command
15 ERD Read or write enable terminal
16 RWR Read/Write execution control pin
17 RSTB Reset input pin
18~25 D0~D7 Data bus line
26 ITOGND ESD PIN

Mechanical Data

Item Dimension Unit
Number of dots 256 × 128
Module dimension 80.0 × 54.0 × 9.5 mm
View area 70.7 × 38.8 mm
Active area 66.54 × 33.26 mm
Dot size 0.24 × 0.24 mm
Dot pitch 0.26 × 0.26 mm
Drive Method 1/128 DUTY,1/12 BIAS
Backlight Type LED
IC ST75256i
Interface 4-Line SPI/IIC/8-bit 6800/8-bit 8080

Absolute Maximum Ratings

Item Symbol Min Typ Max Unit
Operating Temperature TOP -20 70
Storage Temperature TST -30 80
MPU Interface Input Voltage VIN -0.3 VDD+0.3 V
Digital Power Supply Voltage VDD-Vss -0.3 4.0 V
LCD Power supply voltage V0- XV0 -0.3 19.0 V

Electrical Characteristics

Item Symbol Condition Min Typ Max Unit
Supply Voltage For Logic VDD-VSS 3 3.3 3.6 V
Supply Voltage For LCM VOP Ta=-20℃
Ta=25℃
Ta=70℃

14.2

14.5

14.8
V
V
V
Input High Volt. VIH 0.7 VDD VDD V
Input Low Volt. VIL VSS 0.3 VDD V
Output High Volt. VOH 0.8 VDD VDD V
Output Low Volt. VOL VSS 0.2 VDD V
Supply Current IDD VDD=3.3V 1.5 mA
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