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PCA9615 Datasheet Plus differential I2C-bus buffer

Manufacturer: NXP Semiconductors

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General Description

The PCA9615 is a Fast-mode Plus (Fm+) SMBus/I2C-bus buffer that extends the normal single-ended SMBus/I2C-bus through electrically noisy environments using a differential SMBus/I2C-bus (dI2C) physical layer, which is transparent to the SMBus/I2C-bus protocol layer.

It consists of two single-ended to differential driver channels for the SCL (serial clock) and SDA (serial data).

The use of differential transmission lines between identical dI2C bus buffers removes electrical noise and common-mode offsets that are present when signal lines must pass between different voltage domains, are bundled with hostile signals, or run adjacent to electrical noise sources, such as high energy power supplies and electric motors.

Overview

PCA9615 2-channel multipoint Fast-mode Plus differential I2C-bus buffer with hot-swap logic Rev.

Key Features

  • New dI2C-bus buffers offer improved resistance to system noise and ground offset up to 1⁄2 of supply voltage.
  • 2 channel dI2C (differential I2C-bus) to Fm+ single-ended buffer operating up to 1 MHz with 30 mA SDA/SCL drive capability.
  • Hot swap (allows insertion or removal of modules or card without disruption to bus data).
  • EN signal (PCA9615 input) controls PCA9615 hot swap sequence.
  • Bus idle detect (PCA9615 internal function) waits for a bus idle con.

More Datasheets from NXP Semiconductors

Part Number Description
PCA9600 Dual Bidirectional Bus Buffer
PCA9601 Dual bidirectional bus buffer
PCA9625D 16-bit Fm I2C-bus 100 mA 24V LED driver
PCA9626 LED Driver
PCA9641 2-channel I2C-bus master arbiter
PCA9665A Fm+ parallel bus to I2C-bus controller
PCA9665D Fm+ parallel bus to I2C-bus controller
PCA9670 Remote 8-bit I/O expander
PCA9670D Remote 8-bit I/O expander
PCA9671 Remote 16-bit I/O expander