1.5寸 128x128 COG 绘图型 OLED 显示屏 - WEO128128H

1.5寸 128x128 COG 绘图型 OLED 显示屏

型号 WEO128128H

►类型：图形OLED
►结构：COG
►尺寸：1.5 寸
►128 x 128 点阵
►IC：CH1120
►3V电源电压
►1/128 duty
►接口:8080,SPI,I2C
►发光颜色: 白色 / 黄色
►支持灰度

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产品叙述

WEO128128H是一款1.5寸COG图形OLED显示器模块，显示画面由128x128像素组成，且支持4位灰阶功能。
此模块电源电压典型值为 3V，显示器电源电压典型值为12V，内建CH1120控制器IC，可支持I2C、SPI及8080并列接口；50%显示画面耗电流为20mA @ VCC 12V (白色)及14.5 V(黄色)。

WEO128128H COG OLED模块体积小、低功耗、轻薄，非常适合适用于智能家居应用、云/物联网系统、手持式仪器、智能技术设备、能源系统、汽车、通信系统、医疗仪器等。 WEO128128H 模块工作温度为-40℃至+ 80℃，储存温度为-40℃至+85℃。

规格图

1.5 inch OLED, 128x128 SPI OLED Display - WEO128128H

Data source ref:WEO128128HLAP3N00000

产品规格

规格说明

项目	规格说明	单位
点阵(分辨率)	128 × 128	dots
模块尺寸	33.80 x 36.50 x 2.01	mm
有效区域	26.86 x 26.86	mm
像素大小	0.185 x 0.185	mm
像素间距	0.210 x 0.210	mm
显示模式	Passive Matrix
显示颜色	Monochrome
驱动方式	1/128 Duty
Gray Scale	4 bits
IC	CH1120
接口	8080,SPI,I2C
尺寸	1.5 inch

最大绝对额定值

参数	符号	最小值	最大值	单位
逻辑电源电压	VDD	-0.3	3.5	V
显示电源电压	VPP	-0.3	15.0	V
工作温度	TOP	-40	+80	°C
储存温度	TSTG	-40	+85	°C

电气特性

项目	符号	条件	最小值	典型值	最大值	单位
逻辑电源电压	VDD	－	1.65	3.0	3.3	V
显示电源电压	VPP	－	8.0	14.5	15.0	V
输入高电压	VIH	－	0.8×VDD	－	VDD	V
输入低电压	VIL	－	GND	－	0.2×VDD	V
输出高电压	VOH	－	0.8×VDD	－	VDD	V
输出低电压	VOL	－	GND	－	0.1×VDD	V
Display 50% Pixel on	IPP	VPP=14.5V	－	20	30	mA

Pin功能定义

No.

符号

功能说明

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.