WMSIC Electronic Components

XINLUDA XL8574ATS

ModelXL8574ATS
PackageSSOP-20
BrandXINLUDA
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
XINLUDA XL8574ATS
Type
XINLUDA
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
XINLUDA
Electronic Component
XL8574ATS
Electronic Component
1
Package
SSOP-20
Electronic Component
I / O Expander
Electronic Component
0.52g
Electronic Component
1
I / O
8
Features
Built-in LEDDriver; positions; and
Electronic Component
BM0266211640
Operating Temperature
40℃~+85℃
Operating Voltage
2.3V~5.5V
Interface Type
I2C
Output Type
Electronic Component
Current(IOH)
30uA

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

XL8574ATS 8位I2C接口扩展器产品概述

XL8574ATS是信路达(XINLUDA)推出的一款8位通用数字I/O扩展器,专为解决嵌入式系统中MCU/MPU的I/O资源不足问题设计。该器件基于I2C串行通信接口,具备宽电压范围、中断输出、工业级温区等核心特性,适配消费电子、工业控制、智能家居等多领域应用场景,是提升系统I/O灵活性的高性价比选择。

一、产品核心定位

XL8574ATS聚焦“低成本I/O扩展”与“低功耗通信”两大需求,通过I2C串行接口实现8个独立I/O通道的扩展,无需占用MCU过多引脚资源。其设计兼顾性能与可靠性,既满足消费类电子的紧凑空间需求,也能适应工业环境的宽温与电压波动场景,覆盖从便携式设备到工业控制的多类应用。

二、关键参数详解

1. 电气性能参数

  • 工作电压:2.3V~5.5V宽范围,覆盖3.3V、5V等主流MCU工作电压,无需额外电平转换电路;
  • I/O数量:8位双向I/O,每个通道可独立配置为输入或输出;
  • 通信速率:支持标准I2C时钟频率(100kHz),兼容多数MCU/MPU的I2C主机接口;
  • 中断输出:具备INT中断引脚,输入状态变化时自动触发,减少主机轮询功耗;
  • 输出类型:开漏输出,需外接上拉电阻,支持线与逻辑,适配多电平系统。

2. 环境与封装参数

  • 工作温度:-40℃~+85℃工业级温区,可适应户外、车间等恶劣环境;
  • 封装形式:SSOP-20(窄体小外形封装),引脚间距0.65mm,相比DIP-20节省约60%PCB空间,适合高密度设计。

三、核心功能特性

1. 高效I2C串行通信

仅需SDA(数据线)、SCL(时钟线)两根引脚即可实现与主机通信,大幅减少布线复杂度;支持多设备级联(通过A0~A2地址引脚配置7位I2C地址,最多扩展8个器件),满足大规模I/O扩展需求。

2. 智能中断输出机制

INT引脚为开漏输出,当任意输入引脚逻辑状态变化时,INT输出低电平(需外部上拉),主机可通过读取引脚或寄存器获取最新状态,无需持续轮询,有效降低系统功耗。

3. 灵活的I/O配置

8个I/O通道均为双向可编程:输入模式下支持高阻态或弱上拉(结合应用电路),输出模式下支持推挽(外接上拉)或开漏逻辑,适配不同负载需求。

4. 低功耗设计

器件工作电流典型值<1mA,待机模式下功耗进一步降低,适合电池供电的物联网设备、便携式电子等场景。

四、典型应用场景

XL8574ATS凭借紧凑封装与宽适配性,广泛应用于:

  1. 工业控制:PLC数字量I/O扩展、传感器节点状态采集;
  2. 智能家居:灯光控制、门窗传感器接口、智能家电辅助I/O;
  3. 消费电子:遥控器按键扩展、游戏机外设接口、便携式设备状态指示;
  4. 物联网设备:环境监测节点传感器输入、执行器控制输出;
  5. 汽车电子:车载辅助系统I/O扩展(适配-40℃~+85℃温区)。

五、可靠性与兼容性

  • 环境适应性:工业级温区覆盖高低温循环与湿度变化,满足户外/车间场景需求;
  • 抗干扰性:开漏输出减少电磁干扰,SSOP封装符合IEC 61000-4-2静电防护标准;
  • 兼容性:完全兼容I2C总线协议,适配STM32、ATmega等主流MCU及树莓派等MPU。

XL8574ATS通过优化的硬件设计与丰富功能,为嵌入式系统提供高性价比I/O扩展方案,有效提升系统灵活性与资源利用率,满足不同场景下的I/O扩展需求。

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