Graphic LCD Display Module 240x128 - RX240128B
Graphic LCD Display Module 240x128 - RX240128B
Graphic LCD Display Module 240x128 - RX240128B
Graphic LCD Display Module 240x128 - RX240128B
Graphic LCD Display Module 240x128 - RX240128B
Graphic LCD Display Module 240x128 - RX240128B
Graphic LCD Display Module 240x128 - RX240128B

Graphic LCD Display Module 240x128

Model No. RX240128B

RX240128B is a monochrome 240x128 COG graphic LCD display module. Module size is 122.2x79.8 mm; viewing area is 114.0x64.0 mm. This series has built-in IC ST7586S, supporting 6800 interface (default); other available options for interface are 8080, 3-line/4-line SPI. 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. Besides, this model has an extension series with PCB--- RX240128B2.

Link to Related Product RX240128B2

Inquiry or Demo Code Datasheet Back Previous Next
  • General Specs
  • Interface Pin Function
  • Contour Drawing
  • Electrical Characteristics
Item Dimension Unit
Structure COG
Dot Matrix / Resolution 240 × 128 dots includes cursor dots
Module Dimension 122.2 × 79.8 × 6.5 (MAX) mm
View Area 114.0 × 64.0 mm
Active Area 107.98 × 57.58 mm
Dot / Pixel Size 0.43 × 0.43 mm
Dot / Pixel Pitch 0.45 × 0.45 mm
IC ST7586S or Equivalent
Interface 6800 / 8080 / SPI-4 / SPI-3
Power Supply 3.3V
Duty 1/128 duty cycle
Type Graphic Display LCD
Pin No. Symbol Description
1 ESD GND Electro-Static discharge
2 VG VG is the power of SEG-drivers
3 XV0 Negative operating voltage of COM-drivers
4 V0 Positive operating voltage of COM-drivers
5 VM VM is the non-select voltage level of COM-drivers
6 VDDA Power supply
7 VSS Ground
8 VD1 Digital power source selection
9 VDDI VDD1 is the power of interface I/O circuit
10 CSB Chip select input pin
CSB=“L”: This chip is selected and the MPU interface is active
CSB=“H”: This chip is not selected and the MPU interface is disabled
(D[7:0] are high impedance)
11 IF3 These pins select interface operation mode
IF3 IF2 IF1 MPU Interface type
H H L 80 series 8-bit parallel
H L L 68 series 8-bit parallel
L H H 8-bit series (4-Line)
L H L 9-bit series (3-Line)
Note: Refer to “Interface Selection” for detailed information
12 IF2
13 IF1
14 RSTB Reset input pin. When RSTB is “L”, internal initialization procedure is executed
15 /RD(E) Read / Write execution control pin. (This pin is only used in parallelinterface)
This pin is not used in serial interfaces and should be connected to VDD1
16~23 D7~D0 The bi-directional data bus of the MPU interface. When CSB is “H”, they are high impedance
If using serial interface:
MPU Type ERD Description
6800-series E Read / Write control input pin.
R/W = "H", When E is "H", data bus is in output status.
R/W = "L", The data are latched at the falling edge of the E signal.
8080-series /RD Read enable input pin.
When / RD is "L", data bus is in output status.
D0 is the SDA signal in 4-Line & 3-Line interface
D1 is the A0 signal in 4-Line interface
24 /WR/(R/W) Read / Write execution control pin. (This pin is only used in parallel interface)
MPU Type RWR Description
6800-series R/W Read/ Write control input pin
R/W = "H" ; read
R/W = "L" : write
8080-series /WR Write enable clock input pin.
The data are latched at the rising edge of the /WR signal.
This pin is not used in serial interfaces and should be connected to VDD1
25 A0(SCL) The function of this pin is different in parallel and serial interface
In parallel interface: A0 is register selection input
A0 = "H": inputs on data bus are display data
A0 = "L": inputs on data bus are command
In serial interface: this pad will be used as SCL (serial-clock) input
26 ESD GND Electro-Static discharge

Graphic LCD Display Module 240x128 - RX240128B

Item Symbol Standard Value
typ.
Unit
Input Voltage VDD 3.3 V
Recommended LCD Driving Voltage for Normal Temp.
Version module @25ºC
VOP 15 V
Top