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
►5V power supply (Also available for 3V)
►Negative voltage optional for 3V power supply
►1/16 duty cycle
►Interface: 6800 (ST7066 IC), 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

Data source ref:WH1202A-TMI-JT


12x2 Character LCD Datasheet

Interface Pin Function

Pin No. Symbol Level Description
1 VSS 0V Ground
2 VDD 5.0V 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   L: Write
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 Power supply for B/L +

General Specification

Item Dimension Unit
Number of Characters 12 characters x 2 lines -
Module dimension 55.7 x 32.0 x 14.5 (MAX) mm
View area 46.0 x 14.5 mm
Active area 37.85 x 11.7 mm
Dot size 0.45 x 0.60 mm
Dot pitch 0.55 x 0.70 mm
Character size 2.65 x 5.50 mm
Character pitch 3.20 x 6.20
Duty 1/16
Backlight Type LED
IC ST7066U
Interface 68 series

Absolute Maximum Ratings

Item Symbol Min Typ Max Unit
Operating Temperature TOP -20 - +70
Storage Temperature TST -30 - +80
Input Voltage VI VSS - VDD V
Supply Voltage For Logic VDD-VSS -0.3 - 7 V
Supply Voltage For LCD VDD-Vo -0.3 - 13 V

Electrical Characteristics

Item Symbol Condition Min Typ Max Unit
Supply Voltage For Logic VDD-VSS - 4.5 5.0 5.5 V
Supply Voltage For LCD VDD-V0 Ta=-20℃


Input High Volt. VIH - 0.7 VDD - VDD V
Input Low Volt. VIL - VSS - 0.6 V
Output High Volt. VOH - 3.9 - VDD V
Output Low Volt. VOL - 0 - 0.4 V
Supply Current IDD VDD=5.0V 0.5 1.0 2.0 mA

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