MCP23S09

In Production

MCP23S09 is an 8-bit I/O expander with SPI interface operating at 10 MHz. The MCP23S09 is available in 18-pin PDIP (300 mil), 18-pin SOIC (300 mil) and 16-pin 3x3mm QFN package

Microchip Technology MCP23S09 Product Info

16 April 2026 2

Parameters

Max. Bus Frequency [kBits/s]	10000
Operating Voltage [V] Max	5.5
Operating Voltage [V] Min	1.8
TempRange [°C] Max	125
TempRange [°C] Min	-40

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 SPI interface at 10 MHz
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

MCP23S09 is an 8-bit I/O expander with SPI interface operating at 10 MHz. The MCP23S09 is available in 18-pin PDIP (300 mil), 18-pin SOIC (300 mil) and 16-pin 3x3mm QFN package

Subscribe to Welllinkchips !

Your Name

* Email

ELECTRONIC COMPONENTS
All In One Distributor

MCP23S09

MCP23S09 is an 8-bit I/O expander with SPI interface operating at 10 MHz. The MCP23S09 is available in 18-pin PDIP (300 mil), 18-pin SOIC (300 mil) and 16-pin 3x3mm QFN package

Microchip Technology MCP23S09 Product Info

Parameters

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS All In One Distributor

MCP23S09

MCP23S09 is an 8-bit I/O expander with SPI interface operating at 10 MHz. The MCP23S09 is available in 18-pin PDIP (300 mil), 18-pin SOIC (300 mil) and 16-pin 3x3mm QFN package

Microchip Technology MCP23S09 Product Info

Parameters

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS
All In One Distributor