Model No. WEO012832N
►Type: Graphic
►Structure: COG
►Size: 2.23 inch OLED
►128 x 32 Dot Matrix
►IC：SH1106
►3V Power supply
►1/32 duty
►Interface: 6800,8080,SPI,I2C
►Display Color: White / Yellow
WEO012832N is a 2.23” COG Graphic OLED display, made of resolution of 128x32 pixels. This module is built-in with SH1106 IC; it can be communicated via 6800 or 8080 parallel, 4-line SPI, and I2C interfaces; the supply voltage for display 12V (typical value), 1/32 driving duty, the supply voltage of logic is 3.0V (typical value), and the current with 50% checkerboard display is 15mA @ 12V VCC (for white color). The WEO012832N model is an IC alternative solution to the WEO012832A model; the electrical characteristics and PFC pin definition are the same. Customers have to adjust the initial code only.WEO012832N module supports internal Charge Pump supply and external VCC supply.
WEO012832N model is ideal for smart home applications, m-POS, IoT systems, intelligent technology devices, energy systems, communication systems, medical instruments, EV charging, etc. This module can be operating at temperatures from -40℃ to +80℃; its storage temperatures range from -40℃ to +85℃.
| Item | Dimension | Unit |
|---|---|---|
| Dot Matrix | 128 × 32 Dots | － |
| Module dimension | 62.0 × 24.0 × 2.17 | mm |
| Active Area | 55.016 × 13.096 | mm |
| Pixel Size | 0.406 × 0.386 | mm |
| Pixel Pitch | 0.43 × 0.41 | mm |
| Display Mode | Passive Matrix | |
| Display Color | Monochrome | |
| Drive Duty | 1/32 Duty | |
| IC | SH1106 | |
| Interface | 6800,8080,4-Wire SPI,I2C | |
| Size | 2.23 inch | |
| Parameter | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Supply Voltage For Logic | VDD1-VSS | -0.3 | 3.6 | V |
| Supply Voltage for Display | VPP | -0.3 | 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 | 12.0 | 12.5 | V |
| Input High Volt. | VIH | － | 0.8XVDD1 | － | VDD1 | V |
| Input Low Volt. | VIL | － | VSS | － | 0.2xVDD1 | V |
| Output High Volt. | VOH | － | 0.8xVDD1 | － | VDD1 | V |
| Output Low Volt. | VOL | － | VSS | － | 0.2xVDD1 | V |
| Display 50% Pixel On | IPP | VPP=12V | － | 15 | 30 | mA |
| No. | Symbol | Function | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | N.C.(GND) | No connection. | |||||||||||||||
| 2~3 | VSS | Ground. | |||||||||||||||
| 4 | N.C. | No connection. | |||||||||||||||
| 5 | VDD1 | Power supply input. | |||||||||||||||
| 6 | IM1 |
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| 7 | IM2 | ||||||||||||||||
| 8 | ___ CS |
This pad is the chip select input. When CSB = “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 |
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 | 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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| 23 | VPP | OLED panel power supply. It could be supplied externally. A capacitor should be connected between this pad and VSS. |
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| 24 | NC(GND) | No connection. |
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