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 option is only for the +3V power supply
►1/16 duty cycle
►Interface: 6800 (ST7066 IC), option SPI/I2C (RW1063 IC)


The WH1202A model is a 12-character by 2-line small/miniature LCD display with outline dimensions of 55.7 x 32 mm, an active area size of 56.20 x 11.5 mm, and a diagonal size of 1.6 inches. The default power supply is 5V, and there is an optional 3V configuration. If opting for the 3V module, a negative voltage version is also available. The 12x2 LCD module comes with a PCB board that includes mounting holes, facilitating easy installation in various applications.

The WH1202A display LCD 12x2 modules include positive mode with gray or yellow/green LCD and negative mode with a blue LCD color option. These miniature LCD displays offer different interfaces, built-in with the ST7066 controller, which has a default 6800 parallel interface. Additionally, there are optional SPI and I2C interfaces available by using the RW1063 IC.

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

A 1.6-inch LCD display with a display format of 12 characters by 2 lines is suitable for applications that require a compact and limited information display. Examples of such applications include digital thermometers, portable digital multimeters, alarm clocks, handheld test equipment, compact industrial control panels, and other products that require an LCD display with a 12x2 character format.


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) Contrast Adjustment
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(+)
16 K Power supply for B/L(-)

Mechanical Data

Item Dimension Unit
Number of Characters 16 Characters x 2 Lines
Module dimension 80.0 x 36.0 x 13.2 (MAX) mm
View area 66.0 x 16.0 mm
Active area 56.20 x 11.5 mm
Dot size 0.55 x 0.65 mm
Dot pitch 0.60 x 0.70 mm
Character size 2.95 x 5.55 mm
Character pitch 3.55 x 5.95 mm
Duty 1/16
Backlight Type LED
IC ST7066U
Interface 6800

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 1.0 1.2 1.5 mA

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