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AW9539TSR

AW9539TSR是16位带中断输出、可配置寄存器的I2C和SMBus I/O扩展器

Datasheet :
Preview - AW9539TSR - Datasheet

Product details

Parameters

Channel 16
Addresses 4
Reset √
Constant Current √
Pull-up ×
Level Shift ×
Temperature -40℃~105℃
Power Supply (Min) (V) 1.65
Power Supply (Max) (V) 5.5
Package (mm) TSSOP-24L

Package | Pins | Size

TSSOP-24L

Features

1 16-bit I/O 扩展器 2 I2C总线和SMBus兼容 3 Open-drain active-low 中断输出 4 400kHz I2C 接口 5 1.65V~5.5V 供电电压 6 2个地址引脚配置地址 7 支持输入极性反转功能 8 0.7uA的低待机电流（@Vcc=3.3V） 9 No glitch on power-up 10 5.5V 耐压的I/O 端口 11 SCL/SDA 输入噪声滤波 12 高电流驱动能力的锁存输出，可以直接驱动LED 13 每个I/O都可以独立配置为输入或输出，默认输入 14 工作温度范围：-40°C~105°C 15 封装: TSSOP-24L

Description

AW9539TSR是一个16位I/O扩展器，可以通过I2C总线进行控制。它通过I2C接口为大多数微控制器系列提供通用I/O扩展。 AW9539TSR由两个8位配置（输入或输出选择）、输入端口、输出端口和极性反转（高电平或低电平操作）寄存器组成。 通电时，所有16个I/O端口都配置为输入。系统主控器可以通过写入I/O配置位来独立地将每个I/O配置为输入或输出。每个输入或输出的数据都保存在相应的输入或输出寄存器中。极性反转寄存器可以反转输入端口寄存器的极性。 当任何输入状态与其相应的输入端口寄存器状态不同时，AW9539TSR开漏中断输出被激活，用于向系统主控器指示输入状态已更改。上电后寄存器会被复位为默认值，状态机也会被初始化。AW9539TSR有一个硬件RSTN引脚，可用于将设备重置为默认状态。 两个地址引脚（A0、A1）确定I2C总线地址，最多允许四个设备共享相同的I2C总线/SMBus。所有I/O引脚最高耐受电压为5.5V。

Technical documentation
Type
Title
Language
Date
Product Design Guide AW95xx Software Design Guide 英文   2025-07-23
Datasheet DS_AW9539TSR_EN_V1.0 英文   2025-08-12

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

Evaluation board

AW9555_9535_9539_EVB_V1.0 — AW9555_9535_EVB_V1.0 is evaluation board for 16-bit I2C and SMBus I/O expanders with interrupt output and configuration registers. It provides general-purpose remote I/O expansion for most microcontroller series through the I2C interface.

EVB evaluation board for 16-bit I2C and SMBus I/O expanders.

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Software development

DRIVER OR LIBRARY

AW95XX_Driver — MCU Driver for AW95XX

MCU driver for AW95XX series，includeing sample code,porting guide.

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DRIVER OR LIBRARY

AW95XX_Drivers — Android and other drivers for AW95XX series

Android and other drivers for AW95XX series, including example code, porting guide, debugging guide, etc

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APPLICATION SOFTWARE&FRAMEWORK

AW95XX_GUI — AW95XX Tunning Tool

AW95XX GUI is a highly integrated and easy-to-use tool for product configuration and debugging. Intuitive interface and use-friendly operation can help customers shorten development time and complete system integration quickly.

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Hardware development

Evaluation board

AW9555_9535_9539_EVB_V1.0 — AW9555_9535_EVB_V1.0 is evaluation board for 16-bit I2C and SMBus I/O expanders with interrupt output and configuration registers. It provides general-purpose remote I/O expansion for most microcontroller series through the I2C interface.

EVB evaluation board for 16-bit I2C and SMBus I/O expanders.

View options
Software development

DRIVER OR LIBRARY

AW95XX_Driver — MCU Driver for AW95XX

MCU driver for AW95XX series，includeing sample code,porting guide.

View options

DRIVER OR LIBRARY

AW95XX_Drivers — Android and other drivers for AW95XX series

Android and other drivers for AW95XX series, including example code, porting guide, debugging guide, etc

View options

APPLICATION SOFTWARE&FRAMEWORK

AW95XX_GUI — AW95XX Tunning Tool

AW95XX GUI is a highly integrated and easy-to-use tool for product configuration and debugging. Intuitive interface and use-friendly operation can help customers shorten development time and complete system integration quickly.

View options