COG Graphic LCD Display Module 256x128 with ST75256 IC - RX256128A
COG Graphic LCD Display Module 256x128 with ST75256 IC - RX256128A
COG Graphic LCD Display Module 256x128 with ST75256 IC - RX256128A
COG Graphic LCD Display Module 256x128 with ST75256 IC - RX256128A
COG Graphic LCD Display Module 256x128 with ST75256 IC - RX256128A
COG Graphic LCD Display Module 256x128 with ST75256 IC - RX256128A

COG Graphic LCD Display Module 256x128 (ST75256 IC)

Model No. RX256128A

RX256128A is a monochrome 256x128 COG graphic LCD display module. Module size is 80.0 × 54.0 mm; active area is 6.54 × 33.26 mm. This series has built-in IC ST75256, supporting interfaces of 4-line SPI / IIC / 8-bit 6800 / 8-bit 8080. Logic voltage of this LCD module ranges from 3V-3.6V; typical value is 3V. The module works within temperature from -20°C to+ 70°C. Storage temperature range is from -30°C to+ 80°C. RX256128A series provides a variety of options for LED backlight. Besides, PCB version of this series is available as well, please feel free to contact us for more info.

Data source ref: RX256128A-FHW

Link to Related Product RX256128A2

Inquiry or Demo Code Datasheet Back Previous Next
  • General Specs
  • Interface Pin Function
  • Contour Drawing
  • Absolute Maximum Ratings
  • Electrical Characteristics
Item Dimension Unit
Structure COG
Dot Matrix / Resolution 256 × 128 dots includes cursor dots
Module Dimension 80.0 × 54.0 × 9.5 mm
View Area 70.7 × 38.8 mm
Active Area 66.54 × 33.26 mm
Dot / Pixel Size 0.24 × 0.24 mm
Dot / Pixel Pitch 0.26 × 0.26 mm
IC ST75256i
Interface 4-Line SPI/IIC/8-bit 6800/8-bit 8080
Power Supply 3.3V
Duty 1/128 DUTY,1/12 BIAS
Type Graphic LCD Module
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

COG Graphic LCD Display Module 256x128 with ST75256 IC - RX256128A

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
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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