WMSIC Electronic Components

MICROCHIP MCP23017T-E/ML MCP23017T

ModelMCP23017T-E/ML
PackageQFN-28-EP(6x6)
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 Electronic Component

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MICROCHIP MCP23017T-E / ML
Type
MICROCHIP
Minimum package
1600 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MICROCHIP
Electronic Component
MCP23017T-E/ML
Electronic Component
1
Package
QFN-28-EP(6x6)
Electronic Component
I / O Expander
Electronic Component
0.32g
Electronic Component
1
I / O
16
Features
positions; and
Electronic Component
BM0257641822
Operating Temperature
40℃~+125℃
Operating Voltage
1.8V~5.5V
Interface Type
I2C
Current(IOL)
8mA
Clock Frequency(fc)
1.7MHz

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

MCP23017T-E/ML 产品概述

概要

MCP23017T-E/ML 是由美国微芯(Microchip)公司生产的一款高性能、16 位 I²C 总线 I/O 扩展器。该器件专为需要扩展微控制器或其他主机设备的输入/输出能力而设计,特别适用于各种嵌入式系统和工业自动化应用。

基础参数

  • 工作温度: -40°C ~ 125°C,适应广泛的环境条件。
  • 电流 - 灌/拉输出: 每个引脚最大支持 25mA 的电流,满足大多数应用场景下的驱动需求。
  • 安装类型: 表面贴装型(SMT),便于自动化生产和高密度封装。
  • 特性: 支持电源复位(POR,Power-On Reset),确保在电源上电时设备处于知名状态。
  • 时钟频率: 支持高达 1.7MHz 的 I²C 总线时钟频率,提高数据传输效率。
  • 中断输出: 提供中断输出功能,允许设备在输入状态变化时通知主机,减少轮询负担。
  • 接口: 使用标准 I²C 接口,简化与主机设备的通信。
  • 电压 - 供电: 支持 1.8V ~ 5.5V 的宽电压范围,兼容多种系统电压标准。
  • I/O 数: 提供 16 个可编程的输入/输出引脚,满足多种应用需求。
  • 输出类型: 推挽式输出,能够驱动较大的负载。

特性详解

高性能 I²C 接口

MCP23017T-E/ML 支持高达 1.7MHz 的 I²C 总线时钟频率,这使得它能够在高速数据传输场景中发挥作用。同时,器件还支持标准模式(100kHz)、快速模式(400kHz)和高速模式(1.7MHz),提供灵活的配置选项。

可编程 I/O

该器件的 16 个 I/O 引脚都是可编程的,可以配置为输入或输出。每个 I/O 引脚都具有独立的方向控制寄存器,这意味着你可以根据具体应用需求灵活地设置每个引脚的功能。

中断功能

MCP23017T-E/ML 提供了强大的中断功能。它支持两种中断模式:端口A和端口B的任意变化都会触发中断,或者只有当配置的特定引脚发生变化时才触发中断。这一功能大大减少了主机设备对 I/O 状态的轮询需求,从而提高系统整体效率。

电源复位(POR)

器件内置了电源复位功能,在电源上电时自动将所有寄存器初始化为默认状态。这确保了设备在启动过程中始终处于知名状态,有助于提高系统的可靠性和稳定性。

推挽式输出

每个 I/O 引脚都支持推挽式输出,这意味着它们可以驱动较大的负载,如 LED、继电器等。这种输出类型在需要驱动外部设备时尤为有用。

应用场景

  1. 嵌入式系统:

    • 在嵌入式系统中,MCP23017T-E/ML 可以作为微控制器的 I/O 扩展器,增加系统的输入/输出能力。
    • 它适用于各种智能家居设备、工业控制系统和汽车电子产品。
  2. 工业自动化:

    • 在工业自动化领域,MCP23017T-E/ML 可以用于扩展 PLC 或其他控制设备的 I/O 接口,提高系统的灵活性和扩展性。
    • 它也可以用于监控和控制工业过程中的各种传感器和执行器。
  3. 消费电子产品:

    • 在消费电子产品如智能手机、平板电脑等中,MCP23017T-E/ML 可以作为外围设备接口扩展器,增加设备的功能性。
    • 例如,它可以用于扩展键盘、显示屏或其他外围设备的接口。

封装与安装

MCP23017T-E/ML 采用 28 引脚 QFN(6x6)封装,这是一种紧凑且高密度的表面贴装封装。这种封装方式不仅节省了 PCB 空间,还便于自动化生产和焊接过程。

总结

MCP23017T-E/ML 是一款功能强大、性能优异的 16 位 I²C 总线 I/O 扩展器。其宽电压范围、高速 I²C 接口、可编程 I/O 和强大的中断功能,使其成为各种嵌入式系统和工业自动化应用中的理想选择。如果你正在寻找一种可靠且高效的方式来扩展你的微控制器或主机设备的输入/输出能力,MCP23017T-E/ML 是一个值得考虑的选项。

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