1.5 인치 128x128 COG OLED 모듈

모델 번호 WEO128128H

►유형 : 그래픽
►구조 : COG
►크기 : 1.5 인치
►128 x 128 점 행렬
►IC：CH1120
►3V 전원 공급 장치
►1/128 duty
►인터페이스 : 8080,SPI,I2C
►디스플레이 색상: 백색 / 노란색
►지원 그레이스케일

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설명

도면

1.5 inch OLED, 128x128 SPI OLED Display - WEO128128H

Data source ref:WEO128128HLAP3N00000

사양

인터페이스 핀 기능

No.

기호

기능

ESD_GND

This pin should be connected to GND.

VPP

This is the most positive voltage supply pin of the chip.
It should be supplied externally.

VCOMH

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

VDD

Power supply for logic

No connection

IM1

These are the MPU interface mode select pins.

	8080	3-wire SPI	4-wire SPI	I2C
IM1	1	0	0	1
IM2	1	1	0	0

These pins must be connected to “H” or “L”.

IM2

VSS

Ground for logic and analog. This pin should be connected to GND externally.

IREF

This is a segment current reference pin.
A resistor should be connected between this pin and GND.

CSB

This pin is the chip select input. When CSB = “L”, then the chip select becomes active, and data/command I/O is enabled.
When in I2C interface, this pin is not used, so it must be connected to “L”.

RESB

This is a reset signal input pin. When RESB is set to “L”, the settings are initialized. The reset operation is performed by the RESB signal level. This pin internal pull high.

This is the Data/Command control pin 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 pin serves as SA0 to distinguish the different address of OLED driver.
When in 3-wire interface, this pin is not used, so it must be connected to “L”.

WRB

This is a MPU interface input pin.
When connected to an 8080 MPU, this is active LOW. This pin connects to the 8080 MPU WR signal. The signals on the data bus are latched at the rising edge of the WR signal
When in 3-wire.4-wire & I2C interface, this pin is not used, so it must be connected to “L”.

RDB

This is a MPU interface input pin.
When connected to an 8080 series MPU, it is active LOW. This pin 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 in 3-wire.4-wire & I2C interface, this pin is not used, so it must be connected to “L”.

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(SPI) and I2C is selected, then D0 serves as the serial clock input pin (SCL) and D1 serves as the serial data input pin (SI). At this time, D2 to D7 are set to high impedance. D7~D2 is recommended to connect the VDD or GND. It is also allowed to leave D7~D2 unconnected.

VPP

This is the most positive voltage supply pin of the chip
It should be supplied externally.

ESD_GND

This pin should be connected to GND.

기계적 데이터

항목	치수	단위
도트 매트릭스	128 × 128	dots
모듈 치수	33.80 x 36.50 x 2.01	mm
활성 영역	26.86 x 26.86	mm
도트 크기	0.185 x 0.185	mm
도트 피치	0.210 x 0.210	mm
디스플레이 모드	패시브 매트릭스 (Passive Matrix)
디스플레이 색	Monochrome
Drive Duty	1/128 Duty
그레이 스케일	4 bits
IC	CH1120
인터페이스	8080,SPI,I2C
크기	1.5 inch

절대 최대 정격값

Parameter	기호	최소값	최대값	단위
Supply Voltage for Logic	VDD	-0.3	3.5	V
Supply Voltage for Display	VPP	-0.3	15.0	V
작동 온도	TOP	-40	+80	°C
보관 온도	TSTG	-40	+85	°C

전기적 특성

항목	기호	조건	최소값	대표값	최대값	단위
Supply Voltage for Logic	VDD	－	1.65	3.0	3.3	V
Supply Voltage for Display	VPP	－	8.0	14.5	15.0	V
Input High Volt.	VIH	－	0.8×VDD	－	VDD	V
Input Low Volt.	VIL	－	GND	－	0.2×VDD	V
Output High Volt.	VOH	－	0.8×VDD	－	VDD	V
Output Low Volt.	VOL	－	GND	－	0.1×VDD	V
Display 50% Pixel on	IPP	VPP=14.5V	－	20	30	mA

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