20x4 Character LCD Display
Model No. WH2004G
►Character LCD 20x4
►5x8 dots includes cursor
►IC: RW1063
►+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 : WH2004G - 6800, WH2004G1 - SPI, WH2004G2 - I2C
Description
This 20x4 Character LCD Display is built-in with RW1063 controller IC which are 6800, 4 line SPI or I2C interface options. The WH2004G 20x4 LCD Display have the same AA size and pin assignment as existing WH2004A and WH2004B character LCD modules but with smaller outline and VA size.
Below are the available series model numbers --
- WH2004G - 6800 interface
- WH2004G1 - 4 line SPI interface
- WH2004G2 - I2C interface
DRAWING
Data source ref:WH2004G-TFH-JW#
SPECIFICATIONS
LCD 20x4 Datasheet
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 4 Lines | － |
| Module dimension | 87.0 x 58.0 x 13.6 (MAX) | mm |
| View area | 74.4 x 24.8 | mm |
| Active area | 70.4 x 20.8 | mm |
| Dot size | 0.55 x 0.55 | mm |
| Dot pitch | 0.60 x 0.60 | mm |
| Character size | 2..95 x 4.75 | mm |
| Character pitch | 3.55 x 5.35 | mm |
| Duty | 1/16 | |
| Backlight Type | LED | |
| IC | RW1063 | |
| Interface | 6800 | |
Absolute Maximum Ratings
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Temperature | TOP | -20 | － | +70 | ℃ |
| Storage Temperature | TST | -30 | － | +80 | ℃ |
| Input Voltage | VIN | -0.3 | － | VDD+0.3 | V |
| Supply Voltage For Logic | VDD-VSS | -0.3 | － | 5.5 | V |
| Supply Voltage For LCD | VDD-Vo | VSS-0.3 | － | VSS+7.0 | 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℃ |
－ |
－ 4.2 － |
－ 4.5 － |
V V V |
| Input High Volt. | VIH | － | 2.5 | － | VDD | V |
| Input Low Volt. | VIL | － | -0.3 | － | 0.6 | V |
| Output High Volt. | VOH | － | 3.9 | － | VDD | V |
| Output Low Volt. | VOL | － | － | － | 0.4 | V |
| Supply Current | IDD | VDD=5.0V | － | 1.0 | － | mA |
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