PCA9546APW,112 The PCA9546APW from NXP Semiconductors is a 4-channel bidirectional translating switch controlled via the I2C-bus. It supports voltage level translation between different bus voltages.
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PCA9546APW,112

Available from 1 distributors
Mfr Name: NXP Semiconductors
NXP Semiconductors
The PCA9546APW from NXP Semiconductors is a 4-channel bidirectional translating switch controlled via the I2C-bus. It supports voltage level translation between different bus voltages.
✓ Total Stock: 286 pcs
$ Price Range: $6.39

PCA9546APW,112 Available from 1 distributor

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PCA9546APW,112 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Clock Frequency
ESD Protection
Interface
Mounting Type
Number of Channels
Supplier Device Package
Tape & Reel
Voltage

PCA9546APW,112 Description

Short technical summary and product information.

The PCA9546APW is a quad bidirectional translating switch designed for I2C-bus communication. It features a 1-of-4 switch configuration, allowing upstream SCL/SDA signals to fan out to four downstream pairs. This enables communication between devices operating at different voltage levels, such as 1.8V, 2.5V, 3.3V, and 5V buses, without additional protection.

 

Controlled via the I2C-bus, the PCA9546APW has an active LOW reset input for recovery from bus issues. It supports SMBus standards and operates with a clock frequency up to 400 kHz. The device is 5V tolerant on its I/O pins and has an operating supply voltage range of 2.3V to 5.5V. ESD protection exceeds 2000V HBM and 1000V CDM.

 

This component is available in a 16-TSSOP package suitable for surface mounting. It supports hot insertion and has low standby current, making it suitable for various embedded system applications requiring flexible I2C bus management and voltage level translation.

PCA9546APW,112 Quick Information

Product Type: I2C Switch
Series: PCA95
Canonical Name: PCA9546APW 4-Channel I2C-bus Switch with Reset
Subcategory: I2C Switch

PCA9546APW,112 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

PCA9546APW,112 Estimated Pricing

Qty Low High
1+ $6.39 $6.39

Estimated market price range - modelled values for guidance only, not live distributor offers.

PCA9546APW,112 Features

  • 1-of-4 bidirectional translating switches
  • I2C-bus and SMBus interface logic
  • Supports voltage level translation
  • Operating voltage range 2.3V to 5.5V
  • 16-TSSOP surface mount package

PCA9546APW,112 Applications

  • Enables communication between different bus voltages
  • Suitable for I2C bus expansion
  • Supports systems with mixed voltage levels
  • Used in embedded systems design

PCA9546APW,112 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the PCA9546APW?

The operating supply voltage range for the PCA9546APW is 2.3V to 5.5V.

What is the maximum clock frequency supported by the PCA9546APW?

The PCA9546APW supports a clock frequency of up to 400 kHz.

What package type is the PCA9546APW available in?

The PCA9546APW is available in a 16-TSSOP (0.173", 4.40mm Width) package.

What is the RoHS status of the PCA9546APW?

The PCA9546APW is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for the PCA9546APW?

The Moisture Sensitivity Level (MSL) for the PCA9546APW is 1 Unlimited.

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