PCA9535RGER - Texas Instruments

Manufacturer Part Number

PCA9535RGER

Manufacturer

Texas Instruments

Introduction

PCA9535RGER, an interface I/O expander from Texas Instruments, provides additional I/O ports for a microcontroller via I2C/SMBus interface.

Product Features and Performance

16 additional I/O ports

Interface compatible with I2C and SMBus protocols

Interrupt output feature for enhanced communication

Power-On Reset (POR) function for reliable operation

Push-pull output type for driving loads directly

Frequency support up to 400 kHz for fast communication

Product Advantages

Expand I/O capability without changing the microcontroller

Low standby current suitable for power-sensitive applications

Consistent performance across 2.3V to 5.5V supply range

Robust operation in extended temperature range from -40°C to 85°C

Key Technical Parameters

Number of I/O: 16

Clock Frequency: 400 kHz

Voltage - Supply: 2.3V ~ 5.5V

Operating Temperature: -40°C ~ 85°C

Current - Output Source/Sink: 10mA, 25mA

Interrupt Output: Yes

Quality and Safety Features

Built-in Power-On Reset (POR) ensures reliable start-up

Compliance with industry-standard I2C/SMBus protocols for compatibility

Operating temperature range suitable for industrial-grade applications

Compatibility

Compatible with various microcontrollers supporting I2C/SMBus

Surface Mount Package enhances PCB compatibility

Application Areas

Industrial controls

Server management

Robotics

Home automation systems

Automotive electronics

Product Lifecycle

Active status indicates the product is in full production and not nearing discontinuation

Availability of ongoing manufacturer support and potential future upgrades

Several Key Reasons to Choose This Product

Provides significant expansion of I/O ports, reducing the need for larger microcontrollers

Supports power-saving modes ideal for battery-operated devices

Flexible supply voltage range ensures compatibility with various logic levels

Easy-to-use surface mount package fits compact PCB layouts

Robust operating temperature range suits a wide range of environments

High interrupt output functionality for real-time system response