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NCA9700 - Level translating Fm+ I2C bus repeater/accelerator

Datasheet Summary

Description

The NCA9700 is a dual-channel bidirectional repeater for I²C and SMBus/PMBus applications.

It targets the Fast-mode Plus (Fm+) of the I²C protocol, making the true 1 MHz operation possible without violating I²C timing specifications.

Features

  • Two-channel bidirectional I²C buffer.
  • Voltage level translation from 1.08 V to 3.6 V at both port A and port B with unconstrained combination of the supply voltage levels.
  • Guaranteed 1 MHz operation (true I²C Fast-mode Plus, Fm+).
  • Support for the I²C Standard-mode (Sm) and Fast-mode (Fm) operation.
  • No static voltage offset.
  • Very low VOL on I/O pins of the port A; VOL regulated to 0.1VCCB on I/O pins of the port B.
  • Input and output r.

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Datasheet Details

Part number NCA9700
Manufacturer nexperia
File Size 366.31 KB
Description Level translating Fm+ I2C bus repeater/accelerator
Datasheet download datasheet NCA9700 Datasheet
Additional preview pages of the NCA9700 datasheet.

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Full PDF Text Transcription

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NCA9700 Level translating Fm+ I²C bus repeater/accelerator Rev. 1 — 10 September 2024 Product data sheet 1. General description The NCA9700 is a dual-channel bidirectional repeater for I²C and SMBus/PMBus applications. It targets the Fast-mode Plus (Fm+) of the I²C protocol, making the true 1 MHz operation possible without violating I²C timing specifications. This is achieved by using edge accelerators added at all NCA9700 ports that speed up the LOW-to-HIGH transitions of I²C input and output signals. The NCA9700 provides the buffering for both clock (SCL) and data (SDA) I²C signals with the voltage level translation possibility (up and down) at the same time. The unique feature of the IC is the same operating voltage range of 1.08 V to 3.
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