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PCA9848PW - Fm+ I2C-bus switch

Description

The PCA9848PW is an ultra-low voltage, octal bidirectional translating switch controlled via the I2C-bus.

The SCL/SDA upstream pair fans out to eight downstream pairs, or channels.

Any or all SCx/SDx channels can be selected, determined by the programmable control register.

Features

  • Ultra-low voltage operation, down to 0.8 V to interface with next-generation CPUs.
  • 1-of-8 bidirectional translating switch.
  • Fm+ I2C-bus interface logic; compatible with SMBus standards.
  • Active LOW reset input.
  • Two address pins allow up to 16 devices on the I2C-bus.
  • Channel selection via I2C-bus.
  • Power-up with all switch channels deselected.
  • Low Ron switches.
  • Allows voltage level translation between 0.8 V, 1.8 V, 2.

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Datasheet preview – PCA9848PW

Datasheet Details

Part number PCA9848PW
Manufacturer NXP
File Size 363.96 KB
Description Fm+ I2C-bus switch
Datasheet download datasheet PCA9848PW Datasheet
Additional preview pages of the PCA9848PW datasheet.

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Full PDF Text Transcription

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PCA9848PW 8-channel ultra-low voltage, Fm+ I2C-bus switch with reset Rev. 2.1 — 23 October 2023 Product data sheet 1 General description The PCA9848PW is an ultra-low voltage, octal bidirectional translating switch controlled via the I2C-bus. The SCL/SDA upstream pair fans out to eight downstream pairs, or channels. Any or all SCx/SDx channels can be selected, determined by the programmable control register. This feature allows multiple devices with the same I2C-bus address to reside on the same bus. The switch device can also separate a heavily loaded I2C-bus into separate bus segments, eliminating the need for a bus buffer. An active LOW reset input allows the PCA9848PW to recover from a situation where one of the downstream I2C-buses is stuck in a LOW state.
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