• Part: PCA9546A
  • Description: 4-channel I2C switch
  • Manufacturer: NXP Semiconductors
  • Size: 274.21 KB
PCA9546A Datasheet (PDF) Download
NXP Semiconductors
PCA9546A

Description

The PCA9546A is a quad bidirectional translating switch controlled via the I2C-bus. The SCL/SDA upstream pair fans out to four downstream pairs, or channels.

Key Features

  • 1-of-4 bidirectional translating switches
  • I2C-bus interface logic; compatible with SMBus standards
  • Active LOW reset input
  • 3 address pins allowing up to 8 devices on the I2C-bus
  • Channel selection via I2C-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