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P617A - Level translating Fm+ I2C-bus repeater

General Description

The PCA9617A is a CMOS integrated circuit that provides level shifting between low voltage (0.8 V to 5.5 V) and higher voltage (2.2 V to 5.5 V) Fast-mode Plus (Fm+) I2C-bus or SMBus applications.

Key Features

  • 2 channel, bidirectional buffer isolates capacitance and allows 540 pF on either side of the device at 1 MHz and up to 4000 pF at lower speeds.
  • Voltage level translation from 0.8 V to 5.5 V and from 2.2 V to 5.5 V.
  • Footprint and functional replacement for PCA9517A at Fast-mode speeds.
  • Port A operating supply voltage range of 0.8 V to 5.5 V with normal levels NXP Semiconductors PCA9617A Level translating Fm+ I2C-bus repeater.
  • Port B operating supply voltage range of 2.

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Full PDF Text Transcription (Reference)

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PCA9617A Level translating Fm+ I2C-bus repeater Rev. 1 — 20 March 2013 Product data sheet 1. General description The PCA9617A is a CMOS integrated circuit that provides level shifting between low voltage (0.8 V to 5.5 V) and higher voltage (2.2 V to 5.5 V) Fast-mode Plus (Fm+) I2C-bus or SMBus applications. While retaining all the operating modes and features of the I2C-bus system during the level shifts, it also permits extension of the I2C-bus by providing bidirectional buffering for both the data (SDA) and the clock (SCL) lines, thus enabling two buses of 540 pF at 1 MHz or up to 4000 pF at lower speeds. Using the PCA9617A enables the system designer to isolate two halves of a bus for both voltage and capacitance.