You have entered a value in the highlighted fields below that contain invalid characters. Please revise your selection using valid characters only.


PCA9545APW - 

Voltage Level Translator, Bidirectional, 4 Input, 10 mA, 1 ns, 2.3 V to 5.5 V, TSSOP-20 New

PCA9545APW - Voltage Level Translator, Bidirectional, 4 Input, 10 mA, 1 ns, 2.3 V to 5.5 V, TSSOP-20

Image is for illustrative purposes only. Please refer to product description.

Manufacturer Part No:
Order Code:

Product Overview

The PCA9545APW is a 4-channel I²C And SMBus Multiplexer with interrupt logic and RESET functions. This quad bidirectional translating switch controlled via the I²C bus. The SCL/SDA upstream pair fans out to four downstream pairs or channels. Any individual SCn/SDn channel or combination of channels can be selected, determined by the contents of the programmable control register. Four interrupt inputs (INT3-INT0), one for each of the downstream pairs, are provided. One interrupt (INT) output acts as an AND of the four interrupt inputs. An active-low RESET input allows the PCA9545A to recover from a situation in which one of the downstream I²C buses is stuck in a low state. Pulling RESET low resets the I²C state machine and causes all the channels to be deselected, as does the internal power-ON RESET function.
  • Four active-low interrupt inputs
  • Active-low interrupt output
  • Active-low reset input
  • Two address terminals, allowing up to four devices on the I²C bus
  • Channel selection via I²C bus, in any combination
  • Power-up with all switch channels deselected
  • low RON switches
  • No glitch on power-up
  • Supports hot insertion
  • Low standby current
  • Latch-up performance exceeds 100mA per JESD 78
  • Green product and no Sb/Br


Industrial, Communications & Networking, Sensing & Instrumentation, Automation & Process Control

Product Information

Level Translator
MSL 1 - Unlimited
Find similar products Choose and modify the attributes above to find similar products.

Related Searches

313 total stock globally

313 available for 4 - 5 business days delivery
Check Stock & Lead Times

More stock available week commencing 30/12/19

$3.58 ( $3.94  Inc. GST)

Pricing is unavailable. Please contact customer services.

Price for:
Multiple: 1 Minimum: 1
Quantity Price (Incl GST) Your Price
1+ $3.58 ($3.94)
  ( )
10+ $3.03 ($3.33)
  ( )
100+ $2.43 ($2.67)
  ( )
500+ $2.13 ($2.34)
  ( )
1000+ $1.76 ($1.94)
  ( )

Pricing is unavailable. Please contact customer services.

No longer stocked:: No Longer Manufactured::
Add to Basket Back Order Pre-Order
Restricted Item
Enter Your Part No/Line Note
Total Price:
Total Price: ( )
Total Price: --

Customer Reviews

Customer Q&A Exchange


Like to see information about this product from other customers?

 Read discussions, blogs, documents from our community members.


Select document type(s) you want to see and click “Apply Filters” button
Post a question to one of our experts or start a discussion and get responses from supplier experts and fellow engineers in our community.