Home Products Character LCD WH2002A

Character LCD Display 20x2, Display LCD 20x2

Model No. WH2002A

►Character LCD display 20x2
►5x8 dots includes cursor
►+5V power supply ( Also available for +3V)
►Negative voltage optional for +3V power supply
►1/16 duty cycle
►LED can be driven by PIN1, PIN2, PIN15, PIN16 or A and K
►Interface: 6800 (ST7066 IC or Equivalent), option SPI/I2C (RW1063 IC)


WH2002A is a Character LCD 20x2 display which is built in with ST7066 controller IC; its default interface is 6800 4/8-bit parallel.  These LCD display 20x2 modules are also available in SPI and I2C interface by using RW1063 controller IC. WH2002A is available in several different backlight colors including blue, green, white, yellow-green, amber, red and white LEDs.   There are different character fonts/texts available for ST7066 IC including English/Japanese, English/West European, English/Scandinavian European, or English/Cyrillic (Russian) as options.  This module can operate at temperature from -20℃ to + 70℃; its storage temperature ranges from -30℃ to + 80℃.

There are different interface options for WH2002A series, details as below:
►WH2002A : 6800 interface (ST7066 IC)
►WH2002A1 : SPI interface (RW1063 IC)
►WH2002A2 : I2C interface (RW1063 IC)


Winstar WH2002A - LCD 20x2, LCD Display 20x2, Display 20x2, Display LCD 20x2


Interface Pin Function

Pin No. Symbol Description
1 VSS Ground
2 VDD Power supply for logic
3 VO Contrast Adjustment
4 RS Data/ Instruction select signal
5 R/W Read/Write select signal
6 E Enable signal
7~14 DB0~DB7 Data bus line
15 A Power supply for B/L +
16 K Power supply for B/L -

Mechanical Data

Item Standard Value Unit
Module Dimension 116.0 × 37.0 mm
Viewing Area 85.0 × 18.6 mm
Mounting Hole 108.0 × 29.0 mm
Character Size 3.2 × 5.55 mm

Electrical Characteristics

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

Display Character Address Code

Display Position 1 2 3 4 5 6 7 8 9 10 11 12 13 --- --- 20
DD RAM Address 00 01                           13
DD RAM Address 40 41                           53

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