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PCA9507 - 2-wire serial bus extender

Description

The PCA9507 is a 2-wire serial bus extender providing 3.3 V to 5 V level shift that allows up to 18 meters bus extension for reliable DDC, I2C-bus or SMBus applications.

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) line as well as the rise time accelerator on port A enabling the bus to drive a load up to 1400 pF or distance of 18 m on port A, and 400 pF on port B. Using the PCA9507 enables the system designer to isolate bus capacitance to meet HDMI DDC version 1.3 distance specification. The SDA and SCL pins are overvoltage tolerant and are.

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Datasheet preview – PCA9507

Datasheet Details

Part number PCA9507
Manufacturer NXP Semiconductors
File Size 114.25 KB
Description 2-wire serial bus extender
Datasheet download datasheet PCA9507 Datasheet
Additional preview pages of the PCA9507 datasheet.

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Full PDF Text Transcription

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PCA9507 2-wire serial bus extender for HDMI DDC I2C-bus and SMBus Rev. 01 — 7 February 2008 Product data sheet 1. General description The PCA9507 is a 2-wire serial bus extender providing 3.3 V to 5 V level shift that allows up to 18 meters bus extension for reliable DDC, 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) line as well as the rise time accelerator on port A enabling the bus to drive a load up to 1400 pF or distance of 18 m on port A, and 400 pF on port B. Using the PCA9507 enables the system designer to isolate bus capacitance to meet HDMI DDC version 1.
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