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PCA9544APWR — TSSOP / SSOP / MSOP package (representative)
TSSOP / SSOP / MSOP
Representative of package type
Texas Instruments

PCA9544APWR

I2C Multiplexer · TSSOP-20 · Interface
Part Status: Active In demand
Data last refreshed Jul 28, 2026
Manufacturer
Texas Instruments
Mfr Part #
PCA9544APWR
Series
PCA9544A
Category
I2C Multiplexer
Datasheet
View datasheet ↗
Availability & Pricing
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Product Attributes

Electrical & Parametric
Channels4
Voltage Range2.3V ~ 5.5V
I2C Speed400 kHz
Physical & Thermal
Package / CaseTSSOP-20
Mounting TypeSurface Mount
SeriesPCA9544A
Operating Temperature-40°C ~ 85°C
Classification & Lifecycle
CategoryI2C Multiplexer
TypeInterface
Part StatusActive

4-channel I2C-bus multiplexer with interrupt logic and reset

Environmental & Export Classifications

RoHS Status
RoHS Compliant

Part Activity

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Specifications reviewed & updated · ZDI

Recent search and sourcing activity for PCA9544APWR.

Engineering FAQ

What are the key specifications of PCA9544APWR?
Channels: 4; Voltage Range: 2.3V ~ 5.5V; I2C Speed: 400 kHz.
What package is PCA9544APWR supplied in?
PCA9544APWR is supplied in the TSSOP-20 package, surface mount, rated -40°C ~ 85°C.
Can ZDI source PCA9544APWR beyond the quantities shown?
Yes — ZD Integrated Circuits specializes in sourcing hard-to-find, obsolete, and excess electronic components through its global network, with counterfeit-avoidance inspection on every lot. Submit an RFQ with your target quantity for availability and pricing.

Documents & Media

Quality & Counterfeit Avoidance

ISO 9001 ERAI Member ESD Certified GIDEP Participant ZDI EQuality Process CAGE Code 1V8K2

ZD Integrated Circuits operates an ISO 9001-certified quality system incorporating JEDEC-standard process-control elements. In an era of global sourcing and internet procurement, standards compliance alone no longer assures component authenticity — so ZDI pioneered a multi-layered counterfeit-avoidance program: supplier analysis at the source-country level, detailed component analysis, defined inspection standards for all incoming devices, and stringent supplier rating and review. These programs let ZDI guarantee the integrity and the source of every component it ships.

Every lot moves through ZDI's EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with Quality-Manager disposition before release. Nonconforming material is quarantined; conforming material is warehoused or shipped.

✓Multi-stage EQuality Process™ inspection (QI-1 · QI-2/camera · QI-3)
✓Source-country supplier analysis, rating & review
✓Incoming inspection, RoHS verification, bake, full lot traceability
✓ESD-controlled handling · authentic parts guaranteed

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