PCA9539DBR vs PCA9555DBR

This in-depth comparison of the PCA9539DBR and PCA9555DBR provides valuable insights into their specifications and key features. We cover important factors in detail, including RoHS compliance, REACH status, series, mounting style, package type, and other relevant characteristics. Presenting the differences side by side simplifies component selection, making it easier for you to select the best option for your specific application.

Technical review by ETEI Component Engineering Source: manufacturer documentation

Parts at a glance

ISO9001 Quality Control ISO45001 ISO14001 100% Genuine
Part A

PCA9539DBR

Texas Instruments

Lifecycle
Active
Stock
6669 PCS
Package
SSOP-24
Series
Interface - I-O Expanders
+BOM RFQ
Part B

PCA9555DBR

Texas Instruments

Lifecycle
Active
Stock
3536 PCS
Package
SSOP-24
Series
Interface - I-O Expanders
+BOM RFQ

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Full specification comparison

Use manufacturer datasheets as the final authority.

Specification PCA9539DBR PCA9555DBR
Part Status Active Active
Number of I/O 16 16
Interface I²C, SMBus I²C, SMBus
Interrupt Output Yes Yes
Features POR POR
Output Type Push-Pull Push-Pull
Current - Output Source / Sink 10mA, 25mA 10mA, 25mA
Clock Frequency 400 kHz 400 kHz
Voltage - Supply 2.3V ~ 5.5V 2.3V ~ 5.5V
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C
Mounting Type Surface Mount Surface Mount
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