MCP23S18-E/SO - Microchip Technology

Manufacturer Part Number

MCP23S18-E/SO

Manufacturer

Microchip Technology

Introduction

The MCP23S18-E/SO is an SPI interface-based I/O expander from Microchip Technology, used to increase the number of I/Os available in a microcontroller or microprocessor system.

Product Features and Performance

Provides 16 additional I/O ports

SPI Interface for communication

Interrupt output available for event notification

Open Drain output type

Up to 25mA current output source/sink capacity

Supports clock frequency up to 10 MHz

Wide voltage supply range from 1.8V to 5.5V

Operating temperature range from -40°C to 125°C

Product Advantages

Increases available I/O count without needing a larger microcontroller

Flexible power requirements to align with various system voltages

High temperature tolerance ensures reliability in extreme conditions

Efficient communication via SPI minimizing pin usage

Key Technical Parameters

Number of I/O: 16

Interface: SPI

Interrupt Output: Yes

Current Output Source/Sink: 25mA

Clock Frequency: 10 MHz

Voltage Supply: 1.8V ~ 5.5V

Operating Temperature: -40°C ~ 125°C

Quality and Safety Features

Robust operating temperature range ensuring function in harsh environments

Complies with industry standards for electronic components safety and quality

Compatibility

Compatible with any microcontroller having an SPI interface

Versatile voltage compatibility for use in diverse system configurations

Application Areas

Automation systems

Automotive electronics

Consumer electronics

IoT (internet of things) devices

Product Lifecycle

Product Status: Active

Not nearing discontinuation

Availability of replacements or upgrades should follow under Microchip’s standard support and product enhancement schemes

Several Key Reasons to Choose This Product

Extends control capability substantially without affecting main processor size

Robust performance with high speed and efficient communication via SPI

Wide compatibility and easy integration into existing systems with diverse voltage levels

Operates reliably under extreme environmental conditions, suitable for rugged applications

Backed by Microchip Technology’s reputation and support ecosystem in the semiconductor industry