WMSIC Electronic Components

MICROCHIP MCP23S17T-E/SS MCP23S17T

ModelMCP23S17T-E/SS
PackageSSOP-28-208mil
BrandMICROCHIP
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
MICROCHIP MCP23S17T-E / SS
Type
MICROCHIP
Minimum package
2100 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MICROCHIP
Electronic Component
MCP23S17T-E/SS
Electronic Component
1
Package
SSOP-28-208mil
Electronic Component
I / O Expander
Electronic Component
0.209g
Electronic Component
1
I / O
16
Features
positions; and
Electronic Component
BM0093042344
Operating Temperature
40℃~+125℃
Operating Voltage
1.8V~5.5V
Interface Type
SPI
Clock Frequency(fc)
10MHz
Equipment
8

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

MCP23S17T-E/SS 产品概述

一. 产品简介

MCP23S17T-E/SS是一款高性能的I/O扩展器,专门设计用于满足各类嵌入式系统和工业自动化的需求。该器件由美国微芯科技(Microchip Technology Inc.)制造,使得设备能够通过SPI(串行外设接口)协议将GPIO(通用输入输出)端口扩展至16个,极大地提高了微控制器在有限引脚数情况下的灵活性和可扩展性。工作温度范围覆盖-40°C至125°C,使其适用于汽车、工业环境以及高温应用。

二. 核心特点

  1. 工作电压范围:MCP23S17T-E/SS的供电电压范围为1.8V至5.5V,确保了与多种微控制器和电源系统的兼容性。
  2. I/O数量:该设备提供16个GPIO,能够满足各种信号需求,包括输入、输出及中断功能,适用于传感器、马达控制、LED显示等场景。
  3. SPI接口:通过SPI接口与主控设备进行通讯,高达10MHz的时钟频率保证了数据的快速传递与响应。
  4. 推挽式输出:输出类型为推挽式,可以提供较高的电流(最大25mA),适合直接驱动小负载。
  5. 中断功能:内置中断功能,能够实现对IO状态变化的快速反应,大幅降低主控处理的负担,有效提高系统的实时性。
  6. 封装类型:采用28-SSOP封装,具有较小的体积且适合表面贴装,便于集成于紧凑型电子设备中。

三. 应用场景

MCP23S17T-E/SS可广泛应用于以下场景:

  • 嵌入式系统:在资源有限的情况下,为单片机或微控制器扩展I/O端口,适用于各种控制和监测任务。
  • 智能家居:可用于智能窗帘、灯光控制、传感器管理等智能家居设备,提升家庭自动化水平。
  • 汽车电子:在车载电子系统中,满足传感器数据采集、执行机构控制等需求,可靠性高。
  • 工业自动化:通过高温耐受特性,适用于工业控制系统中各类PLC(可编程逻辑控制器),便于实现多点数据采集和控制。

四. 工作原理

MCP23S17T-E/SS通过SPI总线实现与主控MCU(单片机)的沟通。当系统启动时,主控通过SPI接口向MCP23S17T-E/SS发送指令,允许其配置各个GPIO为输入或输出模式。当某个GPIO状态发生变化时,器件可通过中断引脚向主控发送通知,主控可以立即响应这一变化,进行数据处理或系统控制。

五. 性能优势

  1. 灵活性:提供16个独立可编程I/O端口,可以根据实际应用需求进行个性化配置。
  2. 高效性:SPI接口快速且有效地进行数据交换,使得系统整体性能提升。
  3. 耐用性:宽广的工作温度范围及强大的输出能力,确保了其在严苛环境下的稳定运行。

六. 结论

MCP23S17T-E/SS是一款功能强大且灵活的I/O扩展器,特别适用于需要高性能和高可靠性的嵌入式系统。其多样的应用场景以及出色的技术规格,为设计工程师在开发智能设备时提供了极大的便利和支持。考虑到电子产品日益增长的集成化和智能化需求,MCP23S17T-E/SS无疑是一个理想的选择。

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