Home Products Character LCD WH2002D

20x2 LCD Display Character

Model No. WH2002D

►Character LCD 20x2
►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
►LED can be driven by PIN17, PIN18
►Interface : 6800, option SPI/I2C (RW1063 IC)


WH2002D is a Character LCD 20x2 display which is built in with ST7066 controller IC; its default interface is 6800 4/8-bit parallel, +5Vpower supply.  WH2002D modules are also available in SPI and I2C interface by using RW1063 controller IC.  It 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 three interface options for WH2002D series, details as below:
►WH2002D : 6800 interface (ST7066 IC)
►WH2002D1 : SPI interface (RW1063 IC)
►WH2002D2 : I2C interface (RW1063 IC)


Winstar WH2002D - 20x2 LCD Display Character


Interface Pin Function

Pin No. Symbol Description
1~2 NC No connection
3 VSS Ground
4 VDD Power supply for logic
5 VO Contrast Adjustment
6 RS Data/ Instruction  select signal
7 R/W Read/Write select signal
8 E Enable signal
9~16 DB0~DB7 Data bus line
17 VLED- Power supply for B/L +
18 VLED Power supply for B/L -
19~20 NC No connection

Mechanical Data

Item Standard Value Unit
Module Dimension 89.0 × 21.5 mm
Viewing Area 75.0 × 15.0 mm
Mounting Hole 86.0 × 15.5 mm
Character Size 2.95 × 5.15 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 4.20 V

Display Character Address Code

Display Position 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
DD RAM Address 00 01                           0F       13
DD RAM Address 40 41                           4F       53

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