2.42 inch OLED, 128x64 SPI OLED Display
Model No. WEO012864AJ
►Type: Graphic
►Structure: COG
►Size: 2.42"
►128 x 64 Dot Matrix
►IC：CH1116
►3V Power supply
►1/64 duty
►Interface: I2C,4-line SPI,8-bits 6800 or 8080 parallel
►Display Color: White / Yellow
►MOQ：150K. You can choose WEO012864AL as a replacement for WEO012864AJ.
Description
WEO012864AJ is a 2.42-inch COG structure Graphic OLED display, made of resolution 128x64 pixels. This module is built-in with CH1116 IC; it can be communicated via I2C, 4-line SPI, 6800 or 8080 parallel interface; supply voltage for logic is 3V (typical value), the supply voltage for display 13V (typical value), 1/64 driving duty. WEO012864AJ series has ZIF FPC, and Hotbar FPC versions optional.
WEO012864AJ model is ideal for smart home applications, financial-POS, Cloud/IoT systems, intelligent technology devices, energy systems, communication systems, medical instruments, etc. This module can be operating at temperatures from -40℃ to +80℃; its storage temperatures range from -40℃ to +85℃.
DRAWING
Data source ref:WEO012864AJWPP3N00000
SPECIFICATIONS
Interface Pin Function
| No. | Symbol | Function | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | NC(GND) | No connection | |||||||||||||||
| 2 | VSS | Ground. | |||||||||||||||
| 3-10 | NC | No connection | |||||||||||||||
| 11 | VDD1 | Power supply input | |||||||||||||||
| 12 | 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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| 13 | IM2 | ||||||||||||||||
| 14 | NC | No connection | |||||||||||||||
| 15 | CS# | This pad is the chip select input. When CS# = “L”, then the chip select becomes active, and data/command I/O is enabled. | |||||||||||||||
| 16 | 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. | |||||||||||||||
| 17 | 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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| 18 | 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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| 19 | 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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| 20~27 | 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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| 28 | IREF | This is a segment current reference pad. A resistor should be connected between this pad and VSS. Set the current at 18.75uA. | |||||||||||||||
| 29 | VCOMH | This is a pad for the voltage output high level for common signals. A capacitor should be connected between this pad and VSS. |
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| 30 | VPP | OLED panel power supply. Generated by internal charge pump. Connect to capacitor. It could be supplied externally. |
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| 31 | NC(GND) | No connection |
Mechanical Data
| Item | Dimension | Unit |
|---|---|---|
| Dot Matrix | 128 × 64 | dots |
| Module dimension | 60.5 × 37.0 × 2.11 | mm |
| Active Area | 55.01 × 27.49 | mm |
| Pixel Size | 0.40 × 0.40 | mm |
| Pixel Pitch | 0.43 × 0.43 | mm |
| Display Mode | Passive Matrix | |
| Display Color | Monochrome | |
| Drive Duty | 1/64 Duty | |
| IC | CH1116 | |
| Interface | I2C,4-line SPI,8-bits 6800 or 8080 parallel | |
| Size | 2.42 inch | |
Absolute Maximum Ratings
| 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 |
Electronical Characteristics
| 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 | 13.0 | 13.5 | 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 =13V | － | 15 | 30 | mA |
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