MCP23S18 is a 16-bit I/O expander for high speed SPI™ Compatible interface. MCP23S18 is available in the following packages: 28-pin PDIP (300 mil,)28-pin SOIC (300 mil), 24-pin QFN (4x4)
Parameter Name Value
Device Description 16-bit I/O Port Expander
Operating Voltage Range (V) 1.8 to 5.5
Operating Temp Range (°C) -40 to 125
Interface SPI
Max. Bus Frequency (kBits/s) 10000
Features
16-bit remote bidirectional I/O port
Open-drain outputs:
- 5.5V tolerant
- 25 mA sink capable
- 400 mA total current out
High-speed SPI™ interface up to 10 MHz
Configurable interrupt output pins: active-high, active-low or open-drain
Low standby current:1 μA (typ.)
