MCP23018
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
- High-speed SPI interface: (MCP23S18) - 10 MHz: 2.7V ≤ VDD ≤ 5.5V
- Single hardware address pin: (MCP23018) - Voltage input to allow up to eight devices on the bus
- Configurable interrupt output pins: - Configurable as active-high, active-low or open-drain
- Configurable interrupt source: - Interrupt-on-change from configured defaults or pin change
- Polarity inversion register to configure the polarity of the input port data
- External reset input
- Low standby current: - 1 µA (-40°C ≤ TA ≤ +85°C) - 6 µA (+85°C ≤ TA ≤ +125°C)
