Home Products Character LCD WH1202A

Display LCD 12x2, Small LCD Displays, Miniature LCD Display

Model No. WH1202A

►Character LCD 12x2
►Small LCD Displays, Miniature LCD Display
►5x8 dots includes cursor
►Bulit-in controller (ST7066 or Equivalent)
►5V power supply (Also available for 3V)
►Negative voltage optional for 3V power supply
►1/16 duty cycle
►Interface : 6800, option SPI/I2C (RW1063 IC)


WH1202A model is a 12 character by 2 line small LCD display which having the outline dimension of 55.7 x 32 mm, diagonal size 1.6 inch.  The WH1202A display LCD 12x 2 modules include positive mode with gray or yellow/green LCD and negative mode with blue LCD color options. These miniature LCD displays have different interfaces available, built in with ST7066 controller which default 6800 4/8-bit parallel interface, or optional SPI and I2C by using RW1063 IC.

There are three interface options for WH1202A series, details as below:
►WH1202A : 6800 interface (ST7066 IC)
►WH1202A1: SPI interface (RW1063 IC)
►WH1202A2: I2C interface (RW1063 IC)


Display LCD 12x2, Small LCD Displays, Miniature LCD Display - WH1202A - Winstar


Interface Pin Function

Pin No. Symbol Description
1 VSS Ground
2 VDD Power supply for logic
3 VO Operating voltage for LCD
4 RS H: DATA, L: Instruction code
5 R/W H: Read   L: Write
6 E Chip enable signal
7~14 DB0~DB7 Data bus line
15 A Power supply for B/L +

Mechanical Data

Item Standard Value Unit
Module Dimension 55.7 × 32.0 mm
Viewing Area 46.0 × 14.5 mm
Mounting Hole 31.2 × 30.0 mm
Character Size 2.65 × 5.50 mm

Electrical Characteristics

Item Symbol Standard Value
Input Voltage VDD 3/5 V
Recommended LCD Driving
Voltage for Normal Temp.
Version module @25°C
VDD-VO 4.20 V

Display Character Address Code

Display Position 1 2 3 4 5 6 7 8
DD RAM Address 00 01         0A 0B
DD RAM Address 40 41         4A 4B

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