MCP23017 I2C 16Bit I/O Expander

MCP23017  I2C 16Bit I/O Expander

• 16-Bit Remote Bidirectional I/O Port (Pins GPA7,
GPB7 are output only for MCP23017):
- I/O pins default to input
• High-Speed I 2 C Interface (MCP23017):
- 100 kHz
- 400 kHz
- 1.7 MHz
• 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

Datenblatt