WMSIC Electronic Components

XINLUDA XL8574T

ModelXL8574T
PackageSOP-16-300mil
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
XINLUDA XL8574T
Type
XINLUDA
Minimum package
1000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
XINLUDA
Electronic Component
XL8574T
Electronic Component
1
Package
SOP-16-300mil
Electronic Component
I / O Expander
Electronic Component
0.778g
Electronic Component
1
I / O
8
Features
Built-in LEDDriver; positions; and
Electronic Component
BM0257590129
Operating Temperature
40℃~+85℃
Operating Voltage
2.3V~5.5V
Interface Type
I2C
Output Type
Electronic Component
Current(IOH)
300uA

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

XL8574T 产品概述

一、产品简介

XL8574T 是信路达(XINLUDA)推出的一款基于 I2C 总线的 8 位 I/O 扩展器,可为微控制器提供额外的通用数字口。器件采用 SOP-16-300mil 封装,工作电压宽范围 2.3V 至 5.5V,工作温度范围 -40℃ 至 +85℃,适用于工业级与消费类电子设备的 GPIO 扩展需求。

二、主要特性

  • 接口类型:I2C(标准模式,时钟频率 fc = 100 kHz)
  • I/O 数量:8 路通用数字 I/O
  • 输出类型:开漏(open-drain),便于线与器件共用总线或与外部拉电阻配合工作
  • 中断输出:带中断输出引脚,用于输入状态变化通知主控,简化轮询设计
  • 工作电压:2.3 V ~ 5.5 V,兼容 3.3 V 与 5 V 系统
  • 工作温度:-40℃ ~ +85℃
  • 封装:SOP-16-300mil
  • 品牌:XINLUDA(信路达)

三、功能描述

XL8574T 通过 I2C 总线向主控提供 8 路可编程的数字口,既可作为输入也可作为输出使用。由于输出为开漏结构,外部电路通常需要上拉电阻以获得逻辑高电平。中断引脚在检测到输入引脚状态变化时拉低,提示主控进行 I2C 读取或处理,能够降低主控的轮询开销与功耗。

四、典型应用场景

  • MCU/MPU GPIO 扩展:在引脚受限的场合扩展数字口数量
  • 人机界面:按键矩阵、指示灯驱动(需配合外部上拉或限流)
  • 工控信号采集:状态输入的集中采集与中断通知
  • 家电与消费电子:扩展开关、指示灯与控制信号接口

五、使用注意事项

  • SDA/SCL 线需外接上拉电阻至系统 VCC,以满足 I2C 总线要求;上拉阻值根据总线电容和速度选择(典型 4.7 kΩ 至 10 kΩ)。
  • I/O 口为开漏输出,若需要推挽输出效果,须外接上拉电阻或采用外部缓冲器。
  • 中断引脚通常为开漏输出,接入主控时请在外部加上上拉电阻并在中断服务中及时读取器件状态以清除中断。
  • 电源去耦:VCC 端建议并联 0.1 µF 陶瓷电容靠近芯片,抑制电源噪声。
  • 电平兼容:器件供电决定其 I/O 工作电平;若主控与器件电源不同,考虑电平移位或隔离方案。

六、封装与订购信息

  • 封装形式:SOP-16-300mil
  • 品牌信息:XINLUDA(信路达)
  • 订购时请确认完整型号、封装与出货数量,并参考信路达提供的技术手册和器件脚位图以确保系统接线正确。

如需更详细的管脚定义、电气参数表、典型应用电路或参考设计,建议查阅官方数据手册或联系信路达技术支持获取最新资料。

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