Home Products Character LCD WH2002M

20x2 Character LCD Modules

Model No. WH2002M

►Character LCD 20x2
►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
►LED can be driven by PIN1, PIN2, PIN15, PIN16 or A and K
►Interface: 6800 (ST7066 IC), option SPI/I2C (RW1063 IC)

Description

WH2002M is a 20x2 Character LCD display module which is built in with ST7066 controller IC; its default interface is 6800 4/8-bit parallel.  These 20x2 LCD display modules are also available in SPI and I2C interface by using RW1063 controller IC. This type of module can be operating at temperatures from -20℃ to +70℃; its storage temperatures range from -30℃ to +80℃.  WH2002M is available in several different backlight colors including blue, green, yellow-green, amber, red and white LEDs. The LEDs can be driven by pin 1, pin 2, or pin 15 pin 16 or A/K.  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.

DRAWING

Winstar WH2002M 20x2 Character LCD Modules
Data source ref:WH2002M-TFH-ET#

SPECIFICATIONS

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 146.0 x 43.0 x 13.7 (MAX) mm
View area 123.0 x 23.0 mm
Active area 118.84 x 18.97 mm
Dot size 0.92 x 1.1 mm
Dot pitch 0.98 x 1.16 mm
Character size 4.84 x 9.22 mm
Character pitch 6.0 x 9.75 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℃
Ta=25℃
Ta=70℃

4.4
3.8

4.5
5.5
4.6
V
V
V
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

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

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