LCD 20×4 Display

Available: 6 Items
MMK: 8,000 Ks

This 20×4 lcd display with I2C adapter board is based on the common HD44780 parallel interface chipset. The LCD display includes an I2C adapter board based on PCF8574 I2C chip, it converts I2C serial data to parallell data for the LCD display, thus, significantly reducing the number of I/O pins used on the micro-controller to send data to the LCD.


  • Text Color: White
  • Back light: Blue LED Backlight


  • Width 3.9 inches (98mm)
  • Height 2.35 inches (60mm)
  • Display view size 76mm x 26mm

Pinout Connections

Pin No Symbol Level Description
1 VSS 0V Ground
2 VDD 5V Supply Voltage for logic
3 VO (Variable) Operating voltage for LCD
4 RS H/L H: DATA, L: Instruction code
5 R/W H/L H: Read(MPU?Module) L: Write(MPU?Module)
6 E H,H->L Chip enable signal
7 DB0 H/L Data bus line
8 DB1 H/L Data bus line
9 DB2 H/L Data bus line
10 DB3 H/L Data bus line
11 DB4 H/L Data bus line
12 DB5 H/L Data bus line
13 DB6 H/L Data bus line
14 DB7 H/L Data bus line
15 A 5V LED +
16 K 0V LED-