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Switch ICs - Various 4-Channel I2C And SMBus Multiplexer

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PCA9546ADT General Description

Translating Switch Interface 16-SOIC

Texas Instruments, Inc Inventory

Key Features

  • Key Features
  • 1-of-4 bidirectional translating switches
  • I
  • 2
  • C-bus interface logic; compatible with SMBus standards
  • Active LOW reset input
  • 3 address pins allowing up to 8 devices on the I
  • 2
  • C-bus
  • Channel selection via I
  • 2
  • C-bus, in any combination
  • Power-up with all switch channels deselected
  • Low Ron switches
  • Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V buses
  • No glitch on power-up
  • Supports hot insertion
  • Low standby current
  • Operating power supply voltage range of 2.3 V to 5.5 V
  • 5 V tolerant Inputs
  • 0 Hz to 400 kHz clock frequency
  • ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101
  • Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
  • Packages Offered
  • SO16, TSSOP16, and HVQFN16
  • Product Longevity Program
  • This product is included in NXP Product Longevity Program ensuring a stable supply of products for your embedded designs. The PCA9546APW is included in the 15-year program
Texas Instruments, Inc Original Stock
Texas Instruments, Inc Inventory


Category Integrated Circuits (ICs)InterfaceSpecialized Mfr Texas Instruments
Series - Package Tape & Reel (TR)Cut Tape (CT)Digi-Reel®
Product Status Obsolete Applications Translating Switch
Interface I²C, SMBus Voltage - Supply 2.3V ~ 5.5V
Package / Case 16-SOIC (0.154", 3.90mm Width) Supplier Device Package 16-SOIC
Mounting Type Surface Mount Base Product Number PCA9546

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PCA9546ADT Datasheet PDF

Preliminary Specification PCA9546ADT PDF Download

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