PCA9535RTWR - Texas Instruments

Manufacturer Part Number

PCA9535RTWR

Manufacturer

Texas Instruments

Introduction

The PCA9535RTWR is an Interface I/O Expander from Texas Instruments designed for I2C and SMBus applications.

Product Features and Performance

16-bit I/O port expander

I2C and SMBus compatible interface

Interrupt output feature for input change notification

Power-on reset (POR)

Push-pull output type for direct drive capability

Supports up to 10mA on source and 25mA on sink current outputs

Operates at clock frequencies up to 400 kHz

Supports a wide range of supply voltages from 2.3V to 5.5V

Operational across industrial temperature ranges from -40°C to 85°C

Product Advantages

Facilitates a substantial expansion of I/O ports using the I2C bus

Saves PCB space with compact 24-WFQFN package

Minimizes power consumption with low standby current

Improves system reliability with built-in power-on reset

Robust industrial temperature performance for diverse environments

Key Technical Parameters

Number of I/O: 16

Interface: I2C, SMBus

Interrupt Output: Yes

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

Clock Frequency: 400 kHz

Voltage - Supply: 2.3V ~ 5.5V

Operating Temperature: -40°C ~ 85°C

Mounting Type: Surface Mount

Package / Case: 24-WFQFN Exposed Pad

Supplier Device Package: 24-WQFN (4x4)

Base Product Number: PCA9535

Quality and Safety Features

Designed to meet stringent industrial quality and safety standards

Includes Power-on Reset for increased system stability

Compatibility

Compatible with I2C and SMBus protocols

Ideal for utilization with microcontrollers and processors supporting I2C

Application Areas

Embedded systems

Industrial control systems

Server management

Robotics

Consumer electronics

Product Lifecycle

Last Time Buy

Potential for replacements or upgrades should be checked with Texas Instruments

Several Key Reasons to Choose This Product

Expands I/O capabilities without requiring additional microcontroller pins

Reduces the need for extensive wiring in complex systems

Increases system flexibility with bidirectional I/Os

Implements robust design with industrial temperature rating and POR function

Leverages Texas Instruments' support and reliability