MCP23009-E/P Microchip

MCP23009/MCP23S09 8-Bit I/O Expander with Open-Drain Outputs Configurable interrupt source: Features - Interrupt-on-change from configured defaults 8-bit remote bidirectional I/O port: or pin change - I/O pins default to input Polarity inversion register to configure the polarity Open-drain outputs: of the input port data -5.5V tolerant External reset input - 25 mA sink capable (per pin) Low standby current: - 200 mA total A +85C) - 1 A (-40C T 2 High-speed I C interface: (MCP23009) - 6 A (+85C TA +125C) - 100 kHz Operating voltage: - 400 kHz - 1.8V to 5.5V -3.4MHz High-speed SPI interface: (MCP23S09) Packages -10MHz 18-pin PDIP (300 mil) Single hardware address pin: (MCP23009) 18-pin SOIC (300 mil) - Voltage input to allow up to eight devices on 20-pin SSOP the bus Configurable interrupt output pins: - Configurable as active-high, active-low or open-drain Block Diagram MCP23S09 CS SCK SI SPI SO MCP23009 Serializer/ SCL 2 I C GP0 Deserializer SDA GP1 GP2 RESET 8 GP3 GPIO INT GP4 Control GP5 Multi-bit ADDR GP6 Decode GP7 8 Configuration/ Control Registers 2008 Microchip Technology Inc. DS22121A-page 1GP4 13 GP5 14 GP4 13 GP6 15 GP5 14 GP7 16 GP6 15 GP7 16 MCP23009/MCP23S09 Package Types: MCP23009 PDIP/SOIC QFN VDD 1 18 VSS N/C 2 17 NC SCL 3 16 NC VSS 1 12 GP3 SDA 4 15 GP7 NC 2 11 GP2 EP 17 VDD ADDR 5 14 GP6 3 10 GP1 RESET 6 13 GP5 SCL 4 9 GP0 INT 7 12 GP4 GP0 8 11 GP3 GP1 9 10 GP2 SSOP VDD 1 20 VSS NC 2 19 NC SCL 3 NC 18 SDA 4 17 GP7 ADDR 5 16 GP6 RESET 6 GP5 15 INT 7 14 GP4 GP0 8 GP3 13 GP1 9 12 GP2 NC 10 11 NC Package Types: MCP23S09 PDIP/SOIC QFN VDD 1 18 VSS NC 2 17 NC VSS 1 12 GP3 CS 3 16 GP7 SCK 2 11 GP2 EP SCK 4 15 GP6 17 VDD 3 10 GP1 SI 5 14 GP5 CS 4 9 GP0 SO 6 13 GP4 RESET 7 12 GP3 INT 8 11 GP2 GP0 9 10 GP1 DS22121A-page 2 2008 Microchip Technology Inc. SDA 5 ADDR 6 SI 5 RESET 7 SO 6 INT 8 RESET 7 INT 8