Character LCD 20x4 I2C / SPI / 6800 Display
Model No. WH2004H
►Character LCD 20x4 Display
►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 : WH2004H - 6800, WH2004H1 - SPI, WH2004H2 - I2C
Description
The Character LCD 20x4 Display of WH2004H has the same outline, VA and AA size as WH2004G, but WH2004H having with FFC pinned out.
Below are the available model numbers with different interface--
- WH2004H - 6800 interface
- WH2004H1 - 4 line SPI interface
- WH2004H2 - I2C interface (lcd 20x4 I2C)
DRAWING
Data source ref:WH2004H-TFH-JW#
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(MPU→Module) L: Write(MPU→Module) |
| 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 | VI | -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℃ |
－ 3.9 － |
－ 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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