Model No. WH1602L1
►Character LCD 16x2
►Type: Character
►Structure : COB
►Size: 2.26 inch
►16 characters x 2 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)
►Chinese version : WG16032D
WH1602L1 is a 16x2 character dot matrix LCD module featuring a built-in ST7066 controller IC. Its default interface is the 6800 4/8-bit parallel interface. The WH1602L1 model optionally supports negative voltage operation. This display is also available with SPI and I2C interfaces by using the RW1063 controller IC, offering flexible integration options for various applications.
The WH1602L1 series has a default operating voltage of 5V, with an optional 3V configuration. When operating at 3V, the negative voltage must also be limited to 3V, which should be considered in system power design.
The WH1602L1 series offers an optional built-in Chinese font version WG16032D for customers who require enhanced Chinese character display support. The ST7066 controller supports multiple character font versions, including English/Japanese, Western European, Eastern European, Scandinavian European, Cyrillic (Russian), and Hebrew/Arabic, providing excellent localization flexibility.
This dot matrix LCD module is available in several LED backlight colors including yellow-green, blue, green, white, amber, red, and white. The LEDs can be driven via PIN1, PIN2, PIN15, PIN16, or A and K terminals depending on the circuit design.
Interface options for the WH1602L1 series include:
| Item | Dimension | Unit |
|---|---|---|
| Number of Characters | 16 Characters x 2 Lines | － |
| Module dimension | 122.0 x 44.0 x 13.6 (MAX) | mm |
| View area | 99.0 x 24.0 | mm |
| Active area | 94.20 x 20.0 | mm |
| Dot size | 0.92 x 1.1 | mm |
| Dot pitch | 0.97 x 1.16 | mm |
| Character size | 4.8 x 8.06 | mm |
| Character pitch | 5.96 x 9.66 | 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 3.2 |
－ 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 | 1.2 | 1.5 | 1.8 | mA |
| Pin No. | Symbol | Level | Description |
|---|---|---|---|
| 1 | VSS | 0V | Ground |
| 2 | VDD | 5.0V | Supply Voltage for logic |
| 3 | VO | (Variable) | Contrast Adjustment |
| 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(-) |
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