Microchip Technology

MCP23S18T-E/MJ  

I/O Expanders

MCP23S18T-E/MJ Description

The MCP23S18T-E/MJ is a 16-bit I/O expander designed and manufactured by Microchip Technology. It operates with a clock frequency of 10 MHz and supports an SPI interface for communication. This device is suitable for a wide range of applications requiring I/O expansion in embedded systems. It is designed to operate within a supply voltage range of 1.8V to 5.5V and can source or sink 25mA of current. The MCP23S18T-E/MJ is compliant with the RoHS3 standard and is unaffected by REACH regulations, ensuring environmental compliance.

MCP23S18T-E/MJ Features

• High-Speed Operation: With a clock frequency of 10 MHz, the MCP23S18T-E/MJ offers high-speed data transfer capabilities.
• SPI Interface: The device uses a 4-wire SPI interface, which simplifies integration with microcontrollers and other SPI-compatible devices.
• Open Drain Outputs: The open-drain outputs allow for easy connection to external pull-up resistors, enhancing flexibility in system design.
• 16 I/O Lines: Providing 16 individually programmable I/O lines, the MCP23S18T-E/MJ is ideal for applications requiring a high number of I/O interfaces.
• Interrupt Output: The device includes an interrupt output pin, which can be used to signal the host microcontroller when an interrupt condition occurs.
• Moisture Sensitivity Level (MSL) 1: This indicates that the device can be stored and handled without special precautions regarding moisture, which is beneficial for manufacturing and logistics.
• Surface Mount Package: The 24-pin QFN package is designed for surface mount applications, which is space-efficient and suitable for PCB designs.

MCP23S18T-E/MJ Applications

The MCP23S18T-E/MJ is well-suited for a variety of applications where I/O expansion is necessary:

• Industrial Control Systems: For expanding digital I/O in PLCs and other control systems.
• Automotive Applications: To manage the increasing number of sensors and actuators in modern vehicles.
• Home Automation: For controlling smart home devices, such as lights, thermostats, and security systems.
• Portable Electronics: In devices like smartphones and tablets for additional user interface controls.
• Robotics: For managing the complex I/O requirements of robotic systems, including sensors and motor controls.

Conclusion of MCP23S18T-E/MJ

The MCP23S18T-E/MJ from Microchip Technology is a robust and versatile I/O expander that offers high-speed operation, a flexible SPI interface, and a broad range of I/O options. Its open-drain outputs, interrupt capability, and compliance with environmental standards make it an excellent choice for a wide array of applications in the electronics industry. With its unique combination of features and performance, the MCP23S18T-E/MJ stands out as a reliable solution for designers looking to expand their system's I/O capabilities.

MCP23S18T-E/MJ Documents

Download datasheets and manufacturer documentation for MCP23S18T-E/MJ

Datasheets :

MCP23018,23S18      

PCN Packaging :

Packing Changes 10/Oct/2016       Label and Packing Changes 23/Sep/2015      

HTML Datasheet :

MCP23018,23S18      

PCN Design/Specification :

Mold Compound Update 31/Oct/2014       MCP23018 31/Aug/2017      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH