MCP23018 Datasheet (Microchip Technology)

MCP23018, 16-Bit I/O Expander

I2C PINOUT DESCRIPTION (MCP23018) 24L QFN 24 1 2 3 4 5 6 7 8 23 9 10 11 12 13 14 15 16 17 18 19 20 21 22 * 25 24L Pin SSOP Type 2 3 4 5 6 7 8 9 10 1 11 12 13 14 15 16 17 18 19 20 21 22 23 24 * * I/O I/O I/O I/O I/O I/O I/O I/O P P I I/O I I O O I/O I/O I/O I/O I/O I/O I/O I/

MCP23018 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

* High-speed SPI interface: (MCP23S18) - 10 MH