Graphic 122x32 Liquid Crystal Display Module
Model No. WG12232M
►Graphic LCD 122x32
►IC: ST79200
►1/32 duty cycle
►+5V power supply
►Chinese version
►Same size as WG12232B
►Interface: 6800/SPI
Description
WG12232M is a graphic 122x32 liquid crystal display module with the same mechanical dimensions as WG12232B. It has an outline size of 65.4 x 28.2 mm and a viewing area size of 54.8 x 19 mm, with an active area size of 48.76 x 15.32 mm. This 122x32 graphic LCD display is equipped with an ST7920 controller IC, supporting Traditional Chinese and Simplified Chinese fonts.
WG12232M supports both the 6800 8-bit parallel and SPI serial interfaces. It can operate within temperatures ranging from -20℃ to +70℃, with storage temperatures ranging from -30℃ to +80℃. The logic supply voltage for WG12232M is 4.5V to 5.5V, with a typical value of 5.0V.
DRAWING
SPECIFICATIONS
Interface Pin Function
| Pin No. | Symbol | Level | Description |
|---|---|---|---|
| 1 | Vdd | 5V | Power supply for logic |
| 2 | Vss | 0V | Ground |
| 3 | Vo | (Variable) | Positive operating voltage for LCD |
| 4 | /RES | H/L | HàL Reset the LCM; |
| 5 | E | H/L | Enable signal; |
| 6 | Vout | － | Positive voltage output |
| 7 | R/W | H/L | Enable signal; |
| 8 | RS | H/L | Data/ Instruction |
| 9 | DB0 | H/L | Data bus |
| 10 | DB1 | H/L | Data bus |
| 11 | DB2 | H/L | Data bus |
| 12 | DB3 | H/L | Data bus |
| 13 | DB4 | H/L | Data bus |
| 14 | DB5 | H/L | Data bus |
| 15 | DB6 | H/L | Data bus |
| 16 | DB7 | H/L | Data bus |
| 17 | NC | － | No connection |
| 18 | NC | － | No connection |
Mechanical Data
| Item | Dimension | Unit |
|---|---|---|
| Number of dots | 122 x 32 | － |
| Module dimension | 65.4 x 28.2 x 6.8(Max) | mm |
| View area | 54.8 x 19.0 | mm |
| Active area | 48.76 x 15.32 | mm |
| Dot size | 0.36 x 0.41 | mm |
| Dot pitch | 0.40 x 0.45 | mm |
| Duty | 1/32 | |
| Backlight Type | LED | |
| IC | SBN1661G | |
| Interface | 6800 | |
Absolute Maximum Ratings
| 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 |
| LCD Driver Voltage | VLCD | -0.3 | － | 7.0 | V |
Electrical Characteristics
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage For Logic | VDD-VSS | － | 4.5 | 5.0 | 5.5 | V |
| Supply Voltage For LCD | V0-VSS | Ta=-20℃ Ta=25℃ Ta=70℃ |
－ 4.6 4.2 |
－ 4.75 － |
5.3 4.9 － |
V V V |
| Input High Volt. | VIH | － | 0.7VDD | － | VDD | V |
| Input Low Volt. | VIL | － | -0.3 | － | 0.6 | V |
| Output High Volt. | VOH | － | 0.8VDD | － | VDD | V |
| Output Low Volt. | VOL | － | － | － | 0.4 | V |
| Supply Current | IDD | VDD=5.0V | 0.8 | 1.0 | 1.2 | mA |
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