Model No. WO12864B
►128x64 COG LCD
►Type: Graphic
►Structure: COG
►Size: 2.82"
►Display Format : 128x64 dots
►IC: ST7565P
►3.3V power supply
►1/65 duty cycle
►WO12864B : thickness 12.1mm (Max)
►WO12864B1 : thickness 6.0mm
►Interface : 6800/8080/SPI
| Pin No. | Symbol | Level | Description | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | /CS1B | I | This is the chip select signal. | |||||||||||||||
| 2 | /RES | I | When RES is set to “L”, the setting are initialized. | |||||||||||||||
| 3 | A0 | I | This is connect to the least significant bit of the normal MPU address bus, and it determines whether the data bits are data or command. A0 = “H”: Indicates that D0 to D7 are display data. A0 = “L”: Indicates that D0 to D7 are control data. |
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| 4 | /WR(R/W) | I | • When connected to 8080 series MPU, this pin is treated as the “/WR” signal of the 8080 MPU and is LOW-active. The signals on the data bus are latched at the rising edge of the /WR signal. • When connected to 6800 series MPU, this pin is treated as the “R/W” signal of the 6800 MPU and decides the access type : When R/W = “H”: Read. When R/W = “L”: Write. |
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| 5 | /RD(E) | I |
• When connected to 8080 series MPU, this pin is treated as the “/RD” signal of the 8080 MPU and is LOW-active. |
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| 6~13 | D0~D7 | I/O | Data bus line | |||||||||||||||
| 14 | VDD | Power supply | Power supply | |||||||||||||||
| 15 | VSS | Power supply | Ground | |||||||||||||||
| 16 | VOUT | O | DC/DC voltage converter. Connect a capacitor between this terminal and vss or VDD | |||||||||||||||
| 17 | CAP3P | O | DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1N terminal. | |||||||||||||||
| 18 | CAP1N | O | DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1P terminal. | |||||||||||||||
| 19 | CAP1P | O | DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1N terminal. | |||||||||||||||
| 20 | CAP2P | O | DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2N terminal. | |||||||||||||||
| 21 | CAP2N | O | DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2P terminal. | |||||||||||||||
| 22~26 | V4~V0 | Power supply | This is a multi-level power supply for the liquid crystal drive. | |||||||||||||||
| 27 | VR | I | Output voltage regulator terminal. Provides the voltage between VSS and V0 through a resistive voltage divider. | |||||||||||||||
| 28 | C86 | I | This is the MPU interface selection pin. C86 = “H”: 6800 Series MPU interface. C86 = “L”: 8080 Series MPU interface |
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| 29 | P/S | I | This is the parallel data input/serial data input switch terminal. P/S = “H”: Parallel data input. P/S = “L”: Serial data input. The following applies depending on the P/S status:
/RD (E) and /WR (R/W) are fixed to either “H” or “L”. With serial data input, It is impossible read data from RAM |
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| 30 | NC | - | No connection. |
| Item | Dimension | Unit |
|---|---|---|
| Number of Dots | 128 x 64 | － |
| Module dimension | 89.7 x 49.8 x 11.8 | 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 | ST7565P | |
| Interface | 6800/8080/4-Line SPI | |
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Temperature | TOP | -20 | － | +70 | ℃ |
| Storage Temperature | TST | -30 | － | +80 | ℃ |
| Power Supply Voltage | VDD | -0.3 | － | 3.6 | V |
| Power supply voltage (VDD standard) | V0,VOUT | -0.3 | － | 14.5 | V |
| Power supply voltage (VDD standard) | V1,V2,V3,V4 | -0.3 | － | V0+0.3 | V |
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage For Logic | VDD-VSS | － | 2.7 | － | 3.3 | V |
| Supply Voltage For LCM | V0-VSS | Ta=-20℃ Ta=25℃ Ta=70℃ |
9.5 9.2 8.95 |
9.8 9.45 9.2 |
10.5 9.8 9.45 |
V V V |
| Input High Volt. | VIH | － | 0.8 VDD | － | VDD | V |
| Input Low Volt. | VIL | － | VSS | － | 0.2VDD | V |
| Output High Volt. | VOH | IOUT=-0.5mA | 0.8VDD | － | VDD | V |
| Output Low Volt. | VOL | IOUT=0.5mA | VSS | － | 0.2VDD | V |
| Supply Current(No include LED Backlight) | IDD | － | － | 0.6 | 2.0 | mA |
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