2.23 inch 128×32 Graphic OLED Display (SH1106)

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

Categories: Graphic OLED Display, OLED Module

Description

WEO012832N is a 2.23” COG Graphic OLED display, made of resolution of 128×32 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℃.

Drawing

2.23 inch 128x32 Graphic OLED Display (SH1106) - WEO012832N

Data source ref: WEO012832NWPP3N00000

SPECIFICATIONS

Interface Pin Function

No.

Symbol

Function

N.C.(GND)

No connection.

2~3

VSS

Ground.

N.C.

No connection.

VDD1

Power supply input.

IM1

	8080	I2C	6800	4-SPI
IM1	1	1	0	0
IM2	1	0	1	0

These are the MPU interface mode select pads.

IM2

___
CS

This pad is the chip select input. When CSB = “L”, then the chip select becomes active, and data/command I/O is enabled.

___
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.

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.

___
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.

___
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.

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.

IREF

This is a segment current reference pad. A resistor should be connected between this pad and VSS. Set the current at 18.75uA.

VCOMH

This is a pad for the voltage output high level for common signals.
A capacitor should be connected between this pad and VSS.

VPP

OLED panel power supply. Generated by internal charge pump.
Connect to capacitor. It could be supplied externally.

NC(GND)

No connection.

Mechanical Data

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

Absolute Maximum Ratings

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

Electronical Characteristics

DC Electrical 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	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

Search keyword: 128×32 oled, oled 128×32, 2.23 oled, 2.23″ oled, 2.23 inch oled, oled 2.23, oled 2.23″