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PCA9557PWR AI Analysis:
Specs, Applications & Alternatives

AI summary

PCA9557PWR product

PCA9557PWR

Interface

I/O ExpanderI2CTI

The PCA9557PWR is an 8-bit I2C/SMBus I/O expander from Texas Instruments, ideal for adding digital I/O to microcontrollers.

Best for

  • Remote I/O expansion
  • LED control
  • Microcontroller pin extension

Avoid if

  • High-speed data transfer requirements

Check before use

  • I2C address conflicts
  • Pull-up resistor values

Key specifications

I/O Count
8
Supply Voltage
2.3V - 5.5V
Interface
I2C/SMBus

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
Level-1-260C-UNLIM
ECCN
-
HTSUS
-

Application

IndustrialGeneral

Datasheet

szza047

800 KB

Datasheet AI

CAD Models

EDA symbol, PCB footprint, and 3D model for this component. Supported tools include Altium, KiCad, Eagle, and more.

EDA Symbol
Schematic symbol for your EDA tool
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

It is an 8-bit I/O expander that communicates via I2C or SMBus, allowing microcontrollers to control additional digital pins.