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Microchip Technology MCP23S08EP 8-bit I/O Expander
The MCP23S08-E/P is an 8-bit I/O expander with a serial interface that provides additional general-purpose, parallel I/O capabilities for SPI applications. It features multiple 8-bit configuration registers for input, output, and polarity control. The system master can configure each pin as either an input or an output by setting the relevant bits. Input and output data are stored in dedicated registers, and the polarity of the input port can be inverted using the polarity inversion register. All registers are accessible via read commands. The device includes an interrupt capture register that records the port values at the moment an interrupt occurs, allowing the system to identify the cause of the interrupt. Features include a bidirectional 8-bit remote I/O port, two hardware address pins supporting up to four devices on the same SPI bus, a configurable interrupt output pin (active-high, active-low, or open-drain), selectable interrupt sources (change or pin change), an external reset input, and low standby current of up to 1µA. This device is suitable for use in communications and networking applications.
Microchip Technology MCP23S08EP 8-bit I/O Expander Specifications:
- 8-bit remote bidirectional I/O port
- Input Voltage Range: 1.8V to 5.5V
- Operating Temperature: -40°C to +125°C
- Configuration Registers: I/O direction, polarity, interrupt, default value, and control
- Interrupt Output: Configurable as active-high, active-low, or open-drain
- Hardware Address Pins: Two for up to four devices on SPI bus
- Refresh rate: SPI at 10 MHz, maximum 4 devices
- External Reset Input: Yes
- Current Consumption: Up to 1µA in low power standby mode
- Package Options: 20-pin SSOP, 20-pin QFN, 18-pin PDIP, 18-pin SOIC
- Application: Used in communication systems, networking, and for expansion of I/O in SPI applications
Buy the Microchip MCP23S08 U– Reliable SPI I/O Expander for Industrial Applications
Enhance your electronic designs with the reliable MCP23S08 serial I/O expander, supporting up to four devices on the SPI bus. Its configurable interrupt and polarity inversion enable flexible integration into automation, communication, and networking projects. The device is highly versatile, supporting multiple package types like SSOP and QFN, and operates from 1.8V to 5.5V efficiently, with low standby current. Perfect for expanding control and monitoring capabilities in embedded systems, ensuring robust performance and easy-to-implement control features for industrial applications.
Order your Microchip Series MCP23S08 total I/O expansion device today and give your projects the dependable quality they deserve for seamless SPI integration.
Frequently Asked Questions
Where can I buy Microchip Technology MCP23S08EP?
You can click on the BUY or RFQ button to purchase MCP23S08EP from an authorized Microchip Technology distributor.
How do I troubleshoot issues or seek technical support for part MCP23S08EP?
You can download the MCP23S08EP datasheet or visit the Microchip Technology website for support.
Who is the manufacturer of MCP23S08EP?
Microchip Technology