Model No. WEO012864AE
►Type: Graphic
►Structure: COG
►Size: 1.54"
►128 x 64 Dot Matrix
►IC：CH1116
►3V Power supply
►1/64 duty
►Interface: 6800,8080,4-wire SPI,I2C
►Display Color: White / Yellow
►MOQ：150K. You can choose WEO012864AH as a replacement for WEO012864AE.
The WEO012864AE is a 1.54-inch COG 128×64 graphic OLED display module with built-in CH1116 IC. It supports I2C, 4-wire SPI, 6800, and 8080 parallel interfaces. The logic supply voltage is 3 V (typical), and the display supply voltage is 12.5 V (typical) with a 1/64 driving duty.
The WEO012864AE series comes with different ZIF FPC options, including 24-pin and 30-pin. Custom FPC designs are available upon request.
This module is ideal for IoT systems, smart home applications, financial-POS, intelligent devices, energy systems, communication systems, and medical instruments. It operates over a temperature range of -40 °C to +80 °C and can be stored between -40 °C and +85 °C.
| Item | Dimension | Unit |
|---|---|---|
| Dot Matrix | 128 × 64 | dots |
| Module dimension | 42.04 × 27.22 × 1.41 | mm |
| Active Area | 35.05 × 17.51 | mm |
| Pixel Size | 0.249 × 0.249 | mm |
| Pixel Pitch | 0.274 × 0.274 | mm |
| Display Mode | Passive Matrix | |
| Display Color | Monochrome | |
| Drive Duty | 1/64 Duty | |
| IC | CH1116 | |
| Interface | 6800,8080,4-wire SPI,I2C | |
| Size | 1.54 inch | |
| Parameter | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Supply Voltage for Logic | VDD | -0.3 | 3.6 | V |
| Supply Voltage for Display | VCC | 0 | 14.5 | V |
| Operating Temperature | TOP | -40 | +80 | °C |
| Storage Temperature | TSTG | -40 | +85 | °C |
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage for Logic | VDD1 | － | 1.65 | 3.0 | 3.3 | V |
| Supply Voltage for Display | VPP | － | 6.4 | 12.5 | 13.0 | V |
| High Level Input | VIH | － | 0.8×VDD1 | － | VDD1 | V |
| Low Level Input | VIL | － | VSS | － | 0.2×VDD1 | V |
| High Level Output | VOH | － | 0.8×VDD1 | － | VDD1 | V |
| Low Level Output | VOL | － | VSS | － | 0.2×VDD1 | V |
| Display 50% Pixel on | IPP | VPP =12.5V | － | 8 | 12 | mA |
| No. | Symbol | Function | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | NC(GND) | No connection | |||||||||||||||
| 2 | VSS | Ground. | |||||||||||||||
| 3 | VSS | Ground. | |||||||||||||||
| 4 | NC | No connection | |||||||||||||||
| 5 | VDD1 | Power supply input | |||||||||||||||
| 6 | IM1 | These are the MPU interface mode select pads.
(1) 0 is connected to VSS (2) 1 is connected to VDD1 |
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| 7 | IM2 | ||||||||||||||||
| 8 | CS# | This pad is the chip select input. When CS# = “L”, then the chip select becomes active, and data/command I/O is enabled. | |||||||||||||||
| 9 | RES# | This is a reset signal input pad. When RES# is set to “L”, the settings are initialized. The reset operation is performed by the RES# signal level. | |||||||||||||||
| 10 | A0 | This is the Data/Command control pad that determines whether the data bits are data or a command. A0 = “H”: the inputs at D0 to D7 are treated as display data. A0 = “L”: the inputs at D0 to D7 are transferred to the command registers. In I2C interface, this pad serves as SA0 to distinguish the different address of OLED driver. |
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| 11 | WR# (R/W#) |
This is a MPU interface input pad. When connected to an 8080 MPU, this is active LOW. This pad connects to the 8080 MPU WR# signal. The signals on the data bus are latched at the rising edge of the WR# signal. When connected to a 6800 Series MPU: This is the read/write control signal input terminal. When R/W#= “H”: Read. When R/W#= “L”: Write. |
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| 12 | E/RD# | This is a MPU interface input pad. When connected to an 8080 series MPU, it is active LOW. This pad is connected to the RD# signal of the 8080 series MPU, and the data bus is in an output status when this signal is “L”. When connected to a 6800 series MPU, this is active HIGH. This is used as an enable clock input of the 6800 series MPU. When RD# = “H”: Enable. When RD# = “L”: Disable. |
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| 13-20 | D0~D7 | This is an 8-bit bi-directional data bus that connects to an 8-bit or 16-bit standard MPU data bus. When the serial interface is selected, then D0 serves as the serial clock input pad (SCL) and D1 serves as the serial data input pad (SI). At this time, D2 to D7 are set to high impedance. When the I2C interface is selected, then D0 serves as the serial clock input pad (SCL) and D1 serves as the serial data input pad (SDAI). At this time, D2 to D7 are set to high impedance. |
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| 21 | IREF | This is a segment current reference pad. A resistor should be connected between this pad and VSS. Set the current at 18.75uA. | |||||||||||||||
| 22 | VCOMH | OLED panel power supply. It could be supplied externally. A capacitor should be connected between this pad and VSS. |
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| 23 | VPP | OLED panel power supply. Generated by internal charge pump. Connect to capacitor. It could be supplied externally. |
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| 24 | NC(GND) | No connection |
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