Manufacturer Part Number
MCP23S18T-E/SO
Manufacturer
Microchip Technology
Introduction
The MCP23S18T-E/SO is an SPI bus interface I/O expander designed for microcontroller applications requiring additional I/Os.
Product Features and Performance
16-bit remote bidirectional I/O port
SPI interface with up to 10 MHz clock frequencies
Interrupt output for input change notification
Open-drain outputs allow for higher voltage load
Current output source/sink up to 25mA per I/O
Supports multiple I/O configurations and functionality
Product Advantages
Increase the number of I/Os without changing the microcontroller
High-speed SPI interface for quick data transfer
Broad voltage supply range (1.8V to 5.5V) for versatile use
Extended operating temperature range suitable for industrial applications
Key Technical Parameters
Number of I/O: 16
Interface: SPI
Interrupt Output: Yes
Output Type: Open Drain
Current - Output Source/Sink: 25mA
Clock Frequency: 10 MHz
Voltage - Supply: 1.8V to 5.5V
Operating Temperature: -40°C to 125°C
Mounting Type: Surface Mount
Package / Case: 28-SOIC
Supplier Device Package: 28-SOIC
Base Product Number: MCP23S18
Quality and Safety Features
Built to adhere to Microchip's quality standards for reliability and longevity
Protection features embedded for robust performance in harsh environments
Compatibility
Compatible with any MCU with SPI interface support
Suitable for broad range of voltage-operated devices due to flexible voltage supply
Application Areas
Industrial controls
Automotive systems
Home automation
Robotics
Consumer electronics
Product Lifecycle
Product Status: Active (not nearing discontinuation)
Ongoing support and production from Microchip Technology
Availability of replacements or upgrades for future integration
Several Key Reasons to Choose This Product
Simple integration with MCUs to enhance I/O capability
Flexible interfacing through SPI, universally supported by microcontrollers
Supports complex functions with minimal additional components required
Energy-efficient design for battery-operated devices
Robust performance suitable for industrial temperature ranges
Streamlines product development, reducing time-to-market
Expert support and documentation available from Microchip Technology