MCP23009T-E/MG - Microchip Technology

Manufacturer Part Number

MCP23009T-E/MG

Manufacturer

Microchip Technology

Introduction

The MCP23009T-E/MG is an I2C interfaced 8-bit I/O expander from Microchip Technology, designed to expand the number of I/O ports available to a master controller.

Product Features and Performance

8-bit remote bidirectional I/O port

I2C interface compatibility

Interrupt output for input change notification

Open-drain output type

Power-on Reset (POR)

Clock frequency of 3.4 MHz

Supports 1.8V to 5.5V supply voltages

Operating temperature from -40°C to 125°C

Product Advantages

Provides additional I/O ports using a two-wire interface

Supports higher current sink capability up to 25mA for each I/O

Flexible for use with multiple supply voltages

High-temperature operational range ensures reliability in varying environments

Key Technical Parameters

Number of I/O: 8

Interface: I2C

Interrupt Output: Yes

Current - Output Source/Sink: 25mA

Clock Frequency: 3.4 MHz

Voltage - Supply: 1.8V ~ 5.5V

Operating Temperature: -40°C ~ 125°C

Quality and Safety Features

Extended temperature range for high reliability

Over-temperature shutdown

Noise filter on SDA/SCL inputs to prevent spurious operations

Compatibility

Compatible with any microcontroller with I2C interface

Application Areas

Automotive systems

Industrial controls

Consumer electronics

Communication systems

Product Lifecycle

Active product status

Not close to discontinuation and currently no announced replacements or upgrades

Several Key Reasons to Choose This Product

Ideal for expanding I/O capabilities without employing more microcontrollers, reducing overall system cost.

High-current drive capability suitable for LED and other higher current applications.

Support for a wide range of supply voltages increases system design flexibility.

Robust design with built-in safety features ensures system reliability under harsh conditions.