Specifications
| Attribute | Value |
| 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-VQFN Exposed Pad |
Overview
Description
The MCP23S17T-E/ML is a versatile 16-bit I/O expander with SPI interface, designed by Microchip Technology. It allows for easy expansion of microcontroller I/O capabilities without significant modifications to existing systems. The device operates over a wide voltage range from 1.8V to 5.5V, making it suitable for various applications.
Key features include two 8-bit ports, configurable as inputs or outputs, and support for interrupt-on-change, which enhances its utility in dynamic environments. The MCP23S17T-E/ML also offers hardware address pins for device addressing, enabling up to eight devices on the same bus.
It is equipped with internal pull-up resistors and a reset pin for improved reliability. With a maximum clock speed of 10 MHz (at 5V), it ensures swift data communication. The device is designed for industrial and consumer applications, including home automation, factory automation, and data collection systems.
Packaged in a compact 28-pin QFN, the MCP23S17T-E/ML is well-suited for space-constrained designs that require efficient I/O expansion.
Key features include two 8-bit ports, configurable as inputs or outputs, and support for interrupt-on-change, which enhances its utility in dynamic environments. The MCP23S17T-E/ML also offers hardware address pins for device addressing, enabling up to eight devices on the same bus.
It is equipped with internal pull-up resistors and a reset pin for improved reliability. With a maximum clock speed of 10 MHz (at 5V), it ensures swift data communication. The device is designed for industrial and consumer applications, including home automation, factory automation, and data collection systems.
Packaged in a compact 28-pin QFN, the MCP23S17T-E/ML is well-suited for space-constrained designs that require efficient I/O expansion.
Equivalent
The MCP23S17T-E/ML is a 16-bit I/O expander with SPI interface. Equivalent products include:
1. MCP23017 - I2C interface version by Microchip.
2. MAX7317 - I2C interface by Maxim Integrated.
3. PCA9555 - I2C interface by NXP.
4. TCA9535 - I2C interface by Texas Instruments.
5. MCP23S08 - SPI interface, 8-bit version by Microchip.
These alternatives may differ in interface and specific features but serve similar functions. Always verify pin compatibility and electrical characteristics.
1. MCP23017 - I2C interface version by Microchip.
2. MAX7317 - I2C interface by Maxim Integrated.
3. PCA9555 - I2C interface by NXP.
4. TCA9535 - I2C interface by Texas Instruments.
5. MCP23S08 - SPI interface, 8-bit version by Microchip.
These alternatives may differ in interface and specific features but serve similar functions. Always verify pin compatibility and electrical characteristics.
Features
The MCP23S17T-E/ML is a 16-bit I/O expander with SPI interface, designed to enhance microcontroller I/O capabilities. Key features include:
1. 16-Bit GPIO Expansion: Provides two 8-bit ports, configurable as inputs or outputs.
2. SPI Interface: Allows high-speed communication with microcontrollers, supporting speeds up to 10 MHz.
3. Multiple Address Options: Up to eight devices can be used on the same bus by setting hardware address pins.
4. Interrupt Output: Configurable interrupt output for detecting input changes.
5. IOCON Register: Controls device configuration such as interrupt, addressing, and bank settings.
6. Port Registers: INTCAP and GPIO registers for reading the current state of the I/Os.
7. Polarity Inversion: Configurable input polarity for flexibility in design.
8. Operating Voltage Range: 1.8V to 5.5V, suitable for various applications.
9. Temperature Range: -40°C to +125°C, allowing for use in industrial environments.
10. Package: Available in a 28-pin QFN package, making it suitable for space-constrained designs.
These features make the MCP23S17T-E/ML ideal for applications requiring extended I/O capabilities with efficient interfacing.
1. 16-Bit GPIO Expansion: Provides two 8-bit ports, configurable as inputs or outputs.
2. SPI Interface: Allows high-speed communication with microcontrollers, supporting speeds up to 10 MHz.
3. Multiple Address Options: Up to eight devices can be used on the same bus by setting hardware address pins.
4. Interrupt Output: Configurable interrupt output for detecting input changes.
5. IOCON Register: Controls device configuration such as interrupt, addressing, and bank settings.
6. Port Registers: INTCAP and GPIO registers for reading the current state of the I/Os.
7. Polarity Inversion: Configurable input polarity for flexibility in design.
8. Operating Voltage Range: 1.8V to 5.5V, suitable for various applications.
9. Temperature Range: -40°C to +125°C, allowing for use in industrial environments.
10. Package: Available in a 28-pin QFN package, making it suitable for space-constrained designs.
These features make the MCP23S17T-E/ML ideal for applications requiring extended I/O capabilities with efficient interfacing.
Pinout
The MCP23S17T-E/ML is a 28-pin device featuring a 16-bit I/O expander with SPI interface. It's designed to provide additional I/O ports for microcontrollers in applications where I/O pins are limited. The device's primary function is to offer 16-bit, port-based input/output operations, which can be configured as either inputs or outputs. It communicates with a microcontroller via the Serial Peripheral Interface (SPI) protocol, supporting speeds up to 10 MHz.
The device includes features like interrupt output pins, hardware address pins for device selection, and 3-state input/output ports. It operates at a voltage range typically between 1.8V and 5.5V, making it suitable for a variety of digital applications. The device is housed in a 28-lead QFN package, allowing for compact design implementations in space-constrained applications.
The device includes features like interrupt output pins, hardware address pins for device selection, and 3-state input/output ports. It operates at a voltage range typically between 1.8V and 5.5V, making it suitable for a variety of digital applications. The device is housed in a 28-lead QFN package, allowing for compact design implementations in space-constrained applications.
Manufacturer
The MCP23S17T-E/ML is manufactured by Microchip Technology Inc. Microchip Technology is a public American corporation that specializes in the manufacturing of microcontroller, memory, and analog semiconductors. The company is known for producing a wide range of embedded control solutions, which include microcontrollers, digital signal controllers, and microprocessors. Founded in 1989, Microchip serves a variety of industries and applications such as automotive, industrial, consumer electronics, and telecommunications, offering integrated solutions that cater to both small-scale and large-scale production needs. The MCP23S17T-E/ML, specifically, is a 16-bit I/O expander with SPI interface, commonly used in applications that require expanding the I/O capabilities of microcontrollers.
Application
The MCP23S17T-E/ML is a 16-bit I/O expander with SPI interface, commonly used in applications where microcontroller I/O expansion is needed. Key areas include:
1. Consumer Electronics: Enhancing I/O capabilities in devices like smart TVs and home automation systems.
2. Industrial Automation: Managing more sensors and actuators in control systems.
3. Embedded Systems: Expanding I/O ports in constrained environments.
4. Networking Equipment: Controlling LEDs and other indicators.
5. Wearable Devices: Handling additional user interface components.
Its functionality allows for efficient management of multiple devices, making it ideal for systems requiring scalable I/O solutions.
1. Consumer Electronics: Enhancing I/O capabilities in devices like smart TVs and home automation systems.
2. Industrial Automation: Managing more sensors and actuators in control systems.
3. Embedded Systems: Expanding I/O ports in constrained environments.
4. Networking Equipment: Controlling LEDs and other indicators.
5. Wearable Devices: Handling additional user interface components.
Its functionality allows for efficient management of multiple devices, making it ideal for systems requiring scalable I/O solutions.
Package
The MCP23S17T-E/ML is a 28-pin QFN (Quad Flat No-leads) package. It is a surface-mount device often used for space-constrained applications, providing 16-bit I/O expansion for microcontrollers via an SPI interface.
