Model No. WH2004H
►Character LCD 20x4 Display
►Type: Character
►Structure : COB
►Size: 2.89 inch
►20 characters x 4 Lines
►5x8 dots includes cursor
►IC: RW1063
►+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 : WH2004H - 6800, WH2004H1 - SPI, WH2004H2 - I2C
The WINSTAR WH2004H series is a lineup of LCD 20x4 displays with COB structure and 2.89-inch size. This series shares the same outline dimension, view area, and active area as WH2004G, and features FFC pinned out for easier connection. It supports a +5V power supply (optional +3V version available, with negative voltage only for the +3V type). The LED backlight can be driven via PIN1, PIN2, PIN15, PIN16, or A and K, providing flexible LED driving options.
Each module in the series uses the RW1063 controller IC, supporting multiple interfaces including 6800, 4-line SPI, and I2C for various application requirements.
WH2004H series feature LED white backlight, LCD modes including FSTN Positive, STN Positive Gray, STN Negative Blue, and polarizer types of Transflective or Transmissive. The WH2004H series LCD 20x4 modules provide versatile options suitable for industrial applications.
| 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 | |
| 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 |
| 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 |
| 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 - |
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