MCP23018/MCP23S18
16-Bit I/O Expander with Open-Drain Outputs
Features 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) Operating voltage:
-1.8V to 5.5V 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 I2Cв„ў 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 Packages
28-pin PDIP (300 mil)
28-pin SOIC (300 mil) …