MCP23017 - i2c 16bit Expander

MCP23017 - i2c 16bit Expander

The MCP23017 device provides 16-bit, general purpose, parallel I/O expansion for I2C™Compatible bus applications. It includes high-current drive capability, low supply current and individual I/O configuration. I/O expanders provide a simple solution when additional I/Os are needed for ACPI, power switches, sensors, push buttons, LEDs and so on.

• 16-bit I/O port expander with interrupt
• 3 hardware address pins allow user to use up to 8 of these devices on the same I2C/SMBus
• 25mA source/sink capability per I/O
• Supports 100kHz, 400kHz and 1.7MHz I²C™Compatible compatible modes
• 16 programmable bi-directional I/Os compatible with most processors
• Outputs can directly drive LEDs (Source and sink current 25mA)
• Polarity inversion register to configure the polarity of the input port data
• Internal power on reset (POR)
• Open-drain interrupt output activated when input changes state
• Low supply current
• Specified over Industrial temperature range -40°C to +80°C

• Operating Voltage Range (V)    1.8 to 5.5

MCP23017 Datasheet