OLED Display I2C, 0.91 OLED I2C with PCB, 128×32 COG, CH1120 - WEA012832S

0.91" OLED Display I2C with PCB | OLED I2C, 128×32 COG, CH1120

Model No. WEA012832S

►Type: Graphic
►Structure:COG+PCB
►Size: 0.91"
►128x32 OLED Display
►IC：CH1120
►3V Power supply
►1/32 duty
►Interface: Default SPI, optional I2C.
►Display Color: White
►Support Grayscale

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Description

The WEA012832S 0.91" OLED Display I2C with PCB is designed for compact, low-power applications requiring high-resolution display solutions. With a 128×32 resolution and the CH1120 driver IC, this OLED display supports 4-bit grayscale, ensuring clear and crisp visual output. The module supports both SPI and optional I2C interfaces, providing flexibility for various system integrations.

Key Features:

Size: 0.91" OLED, 128×32 resolution
Interface: Default SPI, Optional I2C
IC: CH1120
Power Supply: 3V
Grayscale: 4-bit
Display Color: White
Duty Cycle: 1/32
Display Mode: Passive Matrix

Applications:

Ideal for applications where space and power efficiency are critical:

Wearables: Smartwatches, fitness trackers, and other portable devices.
Portable Electronics: Handheld diagnostic tools and remote controls.
Industrial Instruments: Small displays for medical devices and industrial controls.
IoT Devices: Low-power systems requiring compact, clear displays.

Flexibility in Configuration:

For designs that don't require PCB integration, consider the WEO012832S model, which offers the same specifications without the PCB.

DRAWING

SPECIFICATIONS

General Specification

Item	Dimension	Unit
Dot Matrix	128 × 32 Dots	－
Module dimension	30.0 × 11.5 × 5.36 MAX	mm
Active Area	22.38 × 5.58	mm
Pixel Size	0.155 × 0.155	mm
Pixel Pitch	0.175 × 0.175	mm
Display Mode	Passive Matrix
Display Color	Monochrome
Drive Duty	1/32 Duty
Gray Scale	4 bits
IC	CH1120
Interface	4-wire SPI
Size	0.91 inch

Absolute Maximum Ratings

Parameter	Symbol	Min	Max	Unit
Supply Voltage for Logic	VCC	-0.3	3.5	V
Operating Temperature	TOP	-40	+80	°C
Storage Temperature	TSTG	-40	+85	°C

Electronical Characteristics

DC Electrical Characteristics

Item	Symbol	Condition	Min	Typ	Max	Unit
Supply Voltage for Logic	VCC	－	2.8	3.0	3.3	V
Input High Volt.	VIH	－	0.8×VCC	－	VCC	V
Input Low Volt.	VIL	－	VSS	－	0.2×VCC	V
Output High Volt.	VOH	－	0.8×VCC	－	VCC	V
Output Low Volt.	VOL	－	VSS	－	0.2×VCC	V
Display 50% Pixel on	ICC	VPP=3V	－	10.5	16.0	mA

Interface Pin Function

No.	Symbol	Function
1	GND	GND.
2	VCC	Power supply pin for core logic operation
3	D0	The serial clock input pad.
4	D1	The serial data input pad.
5	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.
6	D/C#	This is the Data/Command control pad that determines whether the data bits are data or a command.
7	CS#	This pad is the chip select input.