128x64 ST7567 Chip on Glass LCD Module
Model No. WO12864N
►128x64 COG LCD Module
►Graphic LCD
►IC: ST7567
►3V power supply
►1/65 duty cycle
►Interface : 6800/8080/SPI
Description
WO12864N is a 128x64 COG Graphic LCD display. This LCD module is built in with ST7567 controller IC, driving duty 1/65. It supports 6800 8-bit, 8080 8-bit parallel and 4-line SPI interface. This LCD module can be operating at temperatures from -20℃ to +70℃; its storage temperatures range from -30℃ to +80℃. WO12864N is COG structure display that is very suitable for applications that demand a more compact package. Please note the WO12864N is the alternative model for WO12864B1 corresponding IC shortage or longer lead-time.
DRAWING
SPECIFICATIONS
Interface Pin Function
| Pin | Symbol | Description |
|---|---|---|
| 1 | CSB | Chip select input pin.Interface access is enabled when CSB is “L”,When CSB is non-active(CSB=”H”),D[7:0] pins are high impedance. |
| 2 | RSTB | Hardware reset input pin. When RSTB is “L”, interna initialization is executed and the internal registers will be initialized. |
| 3 | A0 | It determines whether the access is related to data or command. A0=“H” : Indicates that signals on D[7:0] are display data. A0=“L” : Indicates that signals on D[7:0] are command |
| 4 | RWR | Read/Write execution control pin. When PSB is “H”, RWR is not used in serial interface and should fix to “H” by VDD1 or VDDH. |
| 5 | ERD | Read/Write execution control pin. When PSB is “H”, ERD is not used in serial interface and should fix to “H” by VDD1 or VDDH. |
| 6 | D0 | When using 8-bit parallel interface: (6800 or 8080 mode) 8-bit bi-directional data bus. Connect to the data bus of 8-bit microprocessor. When CSB is non-active (CSB=“H”), D[7:0] pins are high impedance. |
| 7 | D1 | |
| 8 | D2 | |
| 9 | D3 | |
| 10 | D4 | |
| 11 | D5 | |
| 12 | D6 | |
| 13 | D7 | |
| 14 | VDD | Power supply |
| 15 | Vss | Ground |
| 16-19 | NC | Not connect. |
| 20 | V0 | V0 is the LCD driving voltage for common circuits at negative frame. |
| 21 | XV0 | XV0 is the LCD driving voltage for common circuits at positive frame. |
| 22 | VG | VG is the LCD driving voltage for segment circuits. |
| 23-27 | NC | Not connect. |
| 28 | C86 | C86 selects the microprocessor type in parallel interface mode. |
| 29 | PSB | PSB selects the interface type: Serial or Parallel. |
| 30 | NC | Not connect. |
General Specification
| Item | Dimension | Unit |
|---|---|---|
| Number of dots | 128 x 64 | － |
| Module dimension | 89.7 x 49.8 x 6.0 | mm |
| View area | 69.0 x 36.5 | mm |
| Active area | 63.97 x 31.97 | mm |
| Dot size | 0.47 x 0.47 | mm |
| Dot pitch | 0.5 x 0.5 | mm |
| Duty | 1/65 , 1/9 Bias | |
| Backlight Type | LED | |
| IC | ST7567 | |
| Interface | 6800/8080/4-Line SPI | |
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 |
| Digital Power Supply Voltage | VDD-Vss | -0.3 | － | 3.6 | V |
| LCD Power supply voltage | V0-XV0 | -0.3 | － | 16 | V |
Electrical Characteristics
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage For Logic | VDD-VSS | － | 2.8 | 3.0 | 3.2 | V |
| Supply Voltage For LCM *Note |
VOP | Ta=-20℃ Ta=25℃ Ta=70℃ |
－ 9.3 － |
－ 9.5 － |
－ 9.7 － |
V V V |
| Input High Volt. | VIH | － | 0.7 VDD | － | VDD | V |
| Input Low Volt. | VIL | － | Vss | － | 0.3VDD | V |
| Output High Volt. | VOH | － | 0.8 VDD | － | VDD | V |
| Output Low Volt. | VOL | － | Vss | － | 0.2VDD | V |
| Supply Current | IDD | VDD=3.0V | － | 0.7 | 1.0 | mA |
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