Home Products Character LCD WH2002L

Character LCD Display 20x2

Model No. WH2002L

►Character LCD 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), option SPI/I2C (RW1063 IC)


WH2002L is a 20x2 Character LCD 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. WH2002L is available in several different backlight colors including blue, green, 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 WH2002L series, details as below:
►WH2002L : 6800 interface (ST7066 IC)
►WH2002L1 : SPI interface (RW1063 IC)
►WH2002L2: I2C interface (RW1063 IC)



Character LCD 20x2 Datasheet

Winstar WH2002L Character LCD 20x2 Datasheet
Data source ref:WH2002L-TFH-CT#


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 +
16 K Power supply for B/L -

Mechanical Data

Item Dimension Unit
Number of Characters 20 Characters x 2 Lines
Module dimension 180.0 x 40.0 x 13.9 (MAX) mm
View area 149.0 x 23.0 mm
Active area 142.8 x 20.64 mm
Dot size 1.12 x 1.12 mm
Dot pitch 1.22 x 1.22 mm
Character size 6.0 x 9.66 mm
Character pitch 7.2 x 10.98 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 0.3 1.6 3.3 mA

Search Keyword: 20x2 lcd, 20 x 2 lcd, lcd 20x2, lcd 20 x 2
go top