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TCA9800 - Level-Translating I2C Bus Buffer/Repeater

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General Description

The TCA9800 is a dual-channel bidirectional buffer intended for I2C bus and SMBus/PMBus systems.

It provides bidirectional level shifting (up-translation and down-translation) between low voltages (down to 0.8 V) and higher voltages (1.65 V to 3.6 V).

Overview

Product Folder Order Now Technical Documents Tools & Software Support & Community TCA9800 SCPS264B – MARCH 2017 – REVISED FEBRUARY 2020 TCA9800 Level-Translating I2C Bus Buffer/Repeater.

Key Features

  • 1 Two-channel bidirectional buffer.
  • Integrated current source on B-side, requires no external B-side resistors.
  • Ultra-low power consumption.
  • No static-voltage offset, low VOL.
  • I2C bus and SMBus compatible.
  • Operating supply voltage range of 0.8 V to 3.6 V on A-side.
  • Operating supply voltage range of 1.65 V to 3.6 V on B-side.
  • Active-high repeater enable input.
  • Powered-off high impedance I2C bus pins on A- side.

More Datasheets from Texas Instruments

Part Number Description
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TCA9511A Hot Swappable I2C Bus and SMBus Buffer
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TCA9534 Low Voltage 8-Bit I2C and SMBUS Low-Power I/O Expander