Model No. WO1602M
►COG LCD 16x2
►Type: Character
►Structure : COG
►Size: 1.53 inch
►16 Characters x 2 Lines
►5 x 8 dots includes cursor
►IC: ST7032Ai
►3V power supply
►1/16 duty cycle
►Interface: I2C
WO1602M is a 16x2 monochrome COG character LCD module featuring the ST7032Ai controller IC and an I²C interface. The compact COG (Chip-on-Glass) construction makes it suitable for embedded applications where installation space is limited.
The module measures 51.2 x 20.7 x 6.3 mm, with a 40.0 x 10.0 mm view area and a 38.0 x 7.98 mm active area. It operates with a typical logic supply voltage (VDD) of 3 V, within a specified range of 2.9 V to 3.1 V.
WO1602M is designed for operating temperatures from -20℃ to +70℃ and storage temperatures from -30℃ to +80℃. Its compact dimensions and I²C interface make it suitable for measuring instruments, industrial control equipment, portable devices, and other embedded systems.
In cases of IC shortages or extended lead times, WO1602M can also be used as an alternative to the WO1602I model.
| Item | Dimension | Unit |
|---|---|---|
| Number of Characters | 16 characters x 2 Lines | － |
| Module dimension | 51.2 x 20.7 x 6.3 | mm |
| View area | 40.0 x 10.0 | mm |
| Active area | 38.0 x 7.98 | mm |
| Dot size | 0.36 x 0.43 | mm |
| Dot pitch | 0.41 x 0.48 | mm |
| Character size | 2.00 x 3.79 | mm |
| Character pitch | 2.40 x 4.19 | mm |
| Duty | 1/16 , 1/5 Bias | |
| Backlight Type | LED | |
| IC | ST7032Ai | |
| Interface | I2C | |
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Temperature | TOP | -20 | － | +70 | ℃ |
| Storage Temperature | TST | -30 | － | +80 | ℃ |
| Input Voltage | VIN | -0.3 | － | VDD+0.3 | V |
| Power Supply Voltage | VDD-VSS | -0.3 | － | +4.0 | V |
| LCD Driver Voltage | VLCD | -0.3 | － | 7.0 | V |
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage For Logic | VDD-VSS | － | 2.9 | 3.0 | 3.1 | V |
| Supply Voltage For LCD | VOP | Ta=-20℃ Ta=25℃ Ta=70℃ |
－ 4.3 － |
－ 4.5 － |
－ 4.7 － |
V V V |
| Input High Volt. | VIH | － | 0.7 VDD | － | VDD | V |
| Input Low Volt. | VIL | － | VSS | － | 0.3VDD | V |
| Supply Current (LED backlight is not included) | IDD | － | － | 0.16 | 1.0 | mA |
| Pin No. | Symbol | Description |
|---|---|---|
| 1 | VG | VG is the LCD driving voltage for segment circuits. VGO is the output of VG regulator. VGS is the feedback of VG regulator. VGI is the VG input of segment circuits. 1.6 ≤ VG < VDD2. |
| 2 | XV0 | XV0 is the LCD driving voltage for common circuits at positive frame. XV0OUT is the output of XV0 regulator. XV0S is the feedback of XV0 regulator. XV0I is the V0 input of common circuits. |
| 3 | V0 | V0 is the LCD driving voltage for common circuits at negative frame. V0OUT is the output of V0 regulator. V0S is the feedback of V0 regulator. V0I is the V0 input of common circuits. Be sure that: V0 ≥ VG > VM > VSS ≥ XV0 (under operation). |
| 4 | VDD | Power supply input. |
| 5 | VSS | Ground |
| 6 | SDA | Serial data input |
| 7 | SCL | Serial clock input |
| 8 | RST | Hardware reset input pin. When RSTB is “L”, internal initialization is executed and the internal registers will be initialized. |
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