MCP23S18 Overview
MCP23018/MCP23S18 16-Bit I/O Expander with Open-Drain Outputs.
MCP23S18 Key Features
- 16-bit remote bidirectional I/O port
- I/O pins default to input
- Open-drain outputs
- 5.5V tolerant
- 25 mA sink capable (per pin)
- 400 mA total
- High-speed I2C™ interface: (MCP23018)
- 100 kHz
- 400 kHz
- 3.4 MHz