Model No. WH2004L
►20x4 LCD Character Displays
►Type: Character
►Structure : COB
►Size: 4.92 inch
►20 characters x 4 Lines
►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)
WH2004L is a 20x4 LCD module, a high-quality LCD display 20x4, built with the ST7066 controller IC. Its default interface is 6800 4/8-bit parallel, while versions with SPI or I2C interfaces are available using the RW1063 controller IC. This 20x4 LCD module operates with a +5V power supply, with an optional +3V version (negative voltage option only for +3V), and features a COB structure and a 4.92-inch display size. It can operate at temperatures from -20℃ to +70℃, with storage temperatures ranging from -30℃ to +80℃.
WH2004L offers multiple backlight colors, including blue, green, yellow-green, amber, red, and white LEDs. The LEDs can be driven by PIN1, PIN2, PIN15, PIN16, or A/K pins. Different character fonts/texts are available for the ST7066 IC, including English/Japanese, English/Western European, English/Scandinavian European, or English/Cyrillic (Russian).
Interface Options:
► WH2004L : 6800 interface (ST7066 IC)
► WH2004L1 : SPI interface (RW1063 IC)
► WH2004L2 : I2C interface (RW1063 IC)
| Item | Dimension | Unit |
|---|---|---|
| Number of Characters | 20 Characters x 4 Lines | － |
| Module dimension | 146.0 x 62.5 x 13.6 (MAX) | mm |
| View area | 123.5 x 43.0 | mm |
| Active area | 118.84 x 38.47 | 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 | |
| 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 |
| 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 3.5 |
－ 4.2 － |
5.4 4.3 － |
V V V |
| Input High Volt. | VIH | － | 0.7VDD | － | 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 | 0.4 | 2.0 | 4.0 | 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 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 | － | LED + |
| 16 | K | － | LED - |
| 17 | NC | － | No connection |
| 18 | NC | － | No connection |
By clicking "Allow All Cookies", you agree to the storing of cookies on your device to enhance site navigation, analyse site usage, and assist in our marketing and performance efforts. You can find further information this subject in our policy.
