仕様
| 属性 | 値 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| NumberofI/O | 16 |
| Interface | SPI |
| InterruptOutput | Yes |
| Features | POR |
| OutputType | Push-Pull |
| Current-OutputSource/Sink | 25mA |
| ClockFrequency | 10 MHz |
| Voltage-Supply | 1.8V ~ 5.5V |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | 28-SOIC (0.295, 7.50mm Width) |
概要
Description
The MCP23S17T-E/SO is a 16-bit I/O expander from Microchip, using SPI for communication. It features:
- 16 GPIO pins (configurable as inputs or outputs)
- High-speed SPI interface (up to 10 MHz)
- Hardware address pins (supports up to 8 devices on a single bus)
- Interrupt output for monitoring pin changes
- 3.3V or 5V operation
Ideal for expanding I/O in embedded systems, it reduces microcontroller pin usage while offering flexible control. The SOIC-28 package ensures compact PCB integration. Key applications include industrial controls, sensors, and LED/button interfacing.
Datasheet: [Microchip MCP23S17](https://www.microchip.com)
- 16 GPIO pins (configurable as inputs or outputs)
- High-speed SPI interface (up to 10 MHz)
- Hardware address pins (supports up to 8 devices on a single bus)
- Interrupt output for monitoring pin changes
- 3.3V or 5V operation
Ideal for expanding I/O in embedded systems, it reduces microcontroller pin usage while offering flexible control. The SOIC-28 package ensures compact PCB integration. Key applications include industrial controls, sensors, and LED/button interfacing.
Datasheet: [Microchip MCP23S17](https://www.microchip.com)
Equivalent
The MCP23S17T-E/SO is a 16-bit SPI I/O expander. Equivalent alternatives include:
- MCP23S17-E/SO (same series, slight variations)
- MCP23017-E/SO (I²C version)
- PCA9535PW (NXP, I²C)
- MAX7313AUG+ (Maxim, I²C)
- TCA6416APWR (TI, I²C)
For SPI alternatives, consider SX1509 (Semtech) or MAX6958AAI+ (Maxim). Verify pin compatibility and features for your application.
- MCP23S17-E/SO (same series, slight variations)
- MCP23017-E/SO (I²C version)
- PCA9535PW (NXP, I²C)
- MAX7313AUG+ (Maxim, I²C)
- TCA6416APWR (TI, I²C)
For SPI alternatives, consider SX1509 (Semtech) or MAX6958AAI+ (Maxim). Verify pin compatibility and features for your application.
Manufacturer
The MCP23S17T-E/SO is manufactured by Microchip Technology Inc., a leading American semiconductor company specializing in microcontroller, mixed-signal, analog, and Flash-IP solutions. Founded in 1989 and headquartered in Chandler, Arizona, Microchip is known for its embedded control systems, serving industries like automotive, industrial, consumer electronics, and IoT. The MCP23S17T-E/SO is a 16-bit I/O expander with SPI interface, commonly used for expanding GPIOs in embedded designs. Microchip is recognized for its reliable, high-performance components and extensive product portfolio.
Application
The MCP23S17T-E/SO is a 16-bit I/O expander with SPI interface, widely used in applications requiring additional GPIOs. Key areas include:
- Industrial Control: PLCs, sensor interfacing, and automation systems.
- Consumer Electronics: Keypad expansions, LED control, and smart home devices.
- Embedded Systems: Adding I/O ports to microcontrollers (e.g., Arduino, Raspberry Pi).
- Automotive: Dashboard controls and infotainment systems.
- Medical Devices: User interface and peripheral management.
Its SPI interface, daisy-chain capability, and interrupt features make it ideal for space-constrained or multi-device designs.
- Industrial Control: PLCs, sensor interfacing, and automation systems.
- Consumer Electronics: Keypad expansions, LED control, and smart home devices.
- Embedded Systems: Adding I/O ports to microcontrollers (e.g., Arduino, Raspberry Pi).
- Automotive: Dashboard controls and infotainment systems.
- Medical Devices: User interface and peripheral management.
Its SPI interface, daisy-chain capability, and interrupt features make it ideal for space-constrained or multi-device designs.
