Overview
The MCP23S17T-E/ML is a 16-bit I/O expander produced by Microchip Technology. This component is designed to provide additional I/O ports for microcontrollers and other devices, enhancing the overall I/O capacity of a system. It supports both I2C and SPI communication interfaces, making it versatile for various applications. The MCP23S17T-E/ML is available in a QFN-28 package, which is suitable for surface mount technology (SMT) assembly.
Key Specifications
| Specification | Value |
|---|---|
| Number of I/O Pins | 16 |
| Communication Interfaces | I2C, SPI |
| Maximum SPI Clock Frequency | 10 MHz |
| Package Type | QFN-28 |
| Package Size | 6x6 mm |
| Operating Voltage | 1.8V to 5.5V |
| Operating Temperature | -40°C to +85°C |
Key Features
- 16-bit I/O expansion with individual direction control for each I/O pin
- Support for both I2C and SPI communication interfaces
- High-speed SPI interface up to 10 MHz
- Low power consumption with standby current as low as 1 μA
- Integrated pull-up resistors on SCL and SDA lines for I2C interface
- Reset function to clear all registers and set all I/O pins to input mode
Applications
The MCP23S17T-E/ML is suitable for a variety of applications where additional I/O ports are required. These include:
- Industrial control systems
- Automotive systems
- Consumer electronics
- Medical devices
- Embedded systems requiring I/O expansion
Q & A
- What is the primary function of the MCP23S17T-E/ML? The primary function is to provide 16-bit I/O expansion for microcontrollers and other devices.
- Which communication interfaces does the MCP23S17T-E/ML support? It supports both I2C and SPI interfaces.
- What is the maximum SPI clock frequency for the MCP23S17T-E/ML? The maximum SPI clock frequency is 10 MHz.
- In what package type is the MCP23S17T-E/ML available? It is available in a QFN-28 package.
- What is the operating voltage range for the MCP23S17T-E/ML? The operating voltage range is from 1.8V to 5.5V.
- What is the operating temperature range for the MCP23S17T-E/ML? The operating temperature range is from -40°C to +85°C.
- Does the MCP23S17T-E/ML have integrated pull-up resistors? Yes, it has integrated pull-up resistors on SCL and SDA lines for the I2C interface.
- Is the MCP23S17T-E/ML suitable for low-power applications? Yes, it has low power consumption with a standby current as low as 1 μA.
- Can the MCP23S17T-E/ML be reset to clear all registers? Yes, it has a reset function to clear all registers and set all I/O pins to input mode.
- What are some common applications for the MCP23S17T-E/ML? Common applications include industrial control systems, automotive systems, consumer electronics, medical devices, and embedded systems requiring I/O expansion.
