Model No. WH1602J
►Small/Medium LCD module
►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)
WH1602J is a 16x2 character small/medium LCD module featuring a built-in ST7066 controller IC. Its default configuration supports the 6800 4/8-bit parallel interface. The module is also available with SPI and I2C interfaces by using the RW1063 controller IC, offering flexible integration options for various applications.
The WH1602J 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.
This small to medium LCD module is available in a variety of LED backlight colors, including blue, green, white, yellow-green, amber, and red. The LED backlight can be powered via PIN1, PIN2, PIN15, PIN16, or A/K terminals depending on the circuit design.
The ST7066 IC supports multiple character font versions, including English/Japanese, English/Western European, English/Scandinavian European, English/Cyrillic (Russian), and Hebrew/Arabic, providing excellent localization flexibility.
Interface options for the WH1602J series include:
| Item | Dimension | Unit |
|---|---|---|
| Number of Characters | 16 Characters x 2 Lines | － |
| Module dimension | 80.0 x 36.0 x 13.5 (MAX) | mm |
| View area | 66.0 x 16.0 | mm |
| Active area | 56.20 x 11.5 | mm |
| Dot size | 0.55 x 0.65 | mm |
| Dot pitch | 0.60 x 0.70 | mm |
| Character size | 2.95 x 5.55 | mm |
| Character pitch | 3.55 x 5.95 | 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℃ |
－ 3.6 3.2 |
－ 3.7 － |
5.2 3.8 － |
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 | 1.0 | 1.2 | 1.5 | 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 | － | Power supply for B/L(+) |
| 16 | K | － | Power supply for B/L(-) |
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