MCP23009 Series

8-Bit I2C I/O Expander with Open-Drain Output

Catalog

8-Bit I2C I/O Expander with Open-Drain Output

Part	Supplier Device Package	Package / Case	Number of I/O	Features	Interface	Voltage - Supply [Min]	Voltage - Supply [Max]	Mounting Type	Clock Frequency	Operating Temperature [Max]	Operating Temperature [Min]	Output Type	Current - Output Source/Sink	Grade	Qualification
Microchip Technology MCP23009T-E/SS	20-SSOP	20-SSOP	8	POR	I2C	1.8 V	5.5 V	Surface Mount	3.4 MHz	125 °C	-40 °C	Open Drain	25 mA
Microchip Technology MCP23009T-E/MG	16-QFN (3x3)	16-VFQFN Exposed Pad	8	POR	I2C	1.8 V	5.5 V	Surface Mount	3.4 MHz	125 °C	-40 °C	Open Drain	25 mA
Microchip Technology MCP23009-E/MGVAO	16-QFN (3x3)	16-VFQFN Exposed Pad	8	POR	I2C	1.8 V	5.5 V	Surface Mount	3.4 MHz	125 °C	-40 °C	Open Drain	25 mA	Automotive	AEC-Q100
Microchip Technology MCP23009-E/SS	20-SSOP	20-SSOP	8	POR	I2C	1.8 V	5.5 V	Surface Mount	3.4 MHz	125 °C	-40 °C	Open Drain	25 mA

Catalog

8-Bit I2C I/O Expander with Open-Drain Output

Key Features

• * I/O pins default to input

• * 5.5V tolerant

• * 25 mA sink

• * 200 mA total

• * Low standby current as low as 1 µA

• * High-speed I2C™ interface: 100 kHz, 400 kHz,3.4MHz

• * Single hardware address pin: 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

Description

MCP23009 is an 8-bit I/O expander with I2C™Compatible interface operating at speeds of up to 3.4MHz. The MCP23009 is available in 18-pin PDIP (300 mil), 18-pin SOIC (300 mil) and 20-pin SSOP packages.