PCF8574PW vs PCF8574PWR

This in-depth comparison of the PCF8574PW and PCF8574PWR 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

Part A

PCF8574PW

Texas Instruments

Lifecycle
Active
Stock
1212 PCS
Series
Interface - I-O Expanders
+BOM RFQ
Part B

PCF8574PWR

Texas Instruments

Lifecycle
Active
Stock
7237 PCS
Package
TSSOP-20
Series
Interface - I-O Expanders
+BOM RFQ

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Full specification comparison

Use manufacturer datasheets as the final authority.

Specification PCF8574PW PCF8574PWR
Part Status Obsolete Active
Base Product Number PCF8574 -
Digi Key Programmable Not Verified -
Number of I/O 8 8
Interface I2C I²C
Interrupt Output Yes Yes
Features POR POR
Output Type Push-Pull Push-Pull
Current - Output Source / Sink 1mA, 25mA 1mA, 25mA
Clock Frequency 100 kHz 100 kHz
Voltage - Supply 2.5V ~ 6V 2.5V ~ 6V
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C
Mounting Type Surface Mount Surface Mount
Packaging Tube -
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