I/O extension, 16bit, 1.8 - 5V, serial, I2C, SO-28

16-Bit I/O Expander with Serial Interface

Features:
- 16-Bit Remote Bidirectional I/O Port:
- I/O pins default to input
- High-Speed I2C Interface (MCP23017):
- 100kHz
- 400kHz
- 1.7MHz
- High-Speed SPI Interface (MCP23S17):
- 10 MHz (maximum)
- Three Hardware Address Pins to Allow Up to Eight Devices On the Bus
- Configurable Interrupt Output Pins:
- Configurable as active-high, active-low or open-drain
- INTA and INTB Can Be Configured to Operate Independently or Together
- Configurable Interrupt Source:
- Interrupt-on-change from configured register defaults or pin changes
- Polarity Inversion Register to Configure the Polarity of the Input Port Data
- External Reset Input
- Low Standby Current: 1 µA (max.)
- Operating Voltage:
- 1.8V to 5.5V @ -40°C to +85°C
- 2.7V to 5.5V @ -40°C to +85°C
- 4.5V to 5.5V @ -40°C to +125°C

Packages:
- 28-pin QFN, 6 x 6 mm Body
- 28-pin SOIC, Wide, 7.50 mm Body
- 28-pin SPDIP, 300 mil Body
- 28-pin SSOP, 5.30 mm Body