20x2 LCD Display Character
Model No. WH2002D
►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 PIN17, PIN18
►Interface: 6800 (ST7066 IC), option SPI/I2C (RW1063 IC)
Description
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)
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)
DRAWING
Data source ref:WH2002D-TFH-ET#
SPECIFICATIONS
Interface Pin Function
Pin No. | Symbol | Level | Description |
---|---|---|---|
1 | NC | - | No connection |
2 | NC | - | No connection |
3 | VSS | 0V | Ground |
4 | VDD | 5.0V | Supply Voltage for logic |
5 | VO | (Variable) | Operating voltage for LCD |
6 | RS | H/L | H: DATA, L: Instruction code |
7 | R/W | H/L | H: Read L: Write |
8 | E | H,H→L | Chip enable signal |
9 | DB0 | H/L | Data bus line |
10 | DB1 | H/L | Data bus line |
11 | DB2 | H/L | Data bus line |
12 | DB3 | H/L | Data bus line |
13 | DB4 | H/L | Data bus line |
14 | DB5 | H/L | Data bus line |
15 | DB6 | H/L | Data bus line |
16 | DB7 | H/L | Data bus line |
17 | VLED+ | - | Power supply for LED + |
18 | VLED- | - | Power supply for LED- |
19 | A | - | No connection |
20 | K | - | No connection |
Mechanical Data
Item | Dimension | Unit |
---|---|---|
Number of Characters | 20 Characters x 2 Lines | - |
Module dimension | 89.0 x 21.5 x 9.0 (MAX) | mm |
View area | 75.0 x 15.0 | mm |
Active area | 68.5 x 10.7 | mm |
Dot size | 0.55 x 0.60 | mm |
Dot pitch | 0.60 x 0.65 | mm |
Character size | 2.95 x 5.15 | mm |
Character pitch | 3.45x 5.55 | 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℃ |
- 4.1 3.6 |
- 4.2 - |
5.2 4.3 - |
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