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I2C & I3C ICs
I2C & I3C level shifters, buffers & hubs

TCA9617B

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Repetidor/búfer de 1 MHz I2C/SMBus con traducción de nivel de 2 bits y alta impedancia apagada

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TCA9617B

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Detalles del producto

Features Buffer, Enable pin Protocols I2C Frequency (max) (MHz) 1 VCCA (min) (V) 0.8 VCCA (max) (V) 5.5 VCCB (min) (V) 2.2 VCCB (max) (V) 5.5 Supply restrictions VCCA <= VCCB Rating Catalog Operating temperature range (°C) -40 to 85
Features Buffer, Enable pin Protocols I2C Frequency (max) (MHz) 1 VCCA (min) (V) 0.8 VCCA (max) (V) 5.5 VCCB (min) (V) 2.2 VCCB (max) (V) 5.5 Supply restrictions VCCA <= VCCB Rating Catalog Operating temperature range (°C) -40 to 85
VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Two-channel bidirectional I2C buffer
  • Support for standard mode, fast mode (400kHz), and fast mode+ (1MHz) I2C operation
  • Operating supply voltage range of 0.8V to 5.5V on A-side
  • Operating supply voltage range of 2.2V to 5.5V on B-side
  • Voltage-level translation from 0.8V to 5.5V and 2.2V to 5.5V
  • Footprint and function replacement for TCA9517
  • Active-high repeater-enable input
  • Open-drain I2C I/O
  • 5.5V Tolerant I2C and enable input support
  • Lockup-free operation
  • Powered-off high-impedance I2C bus pins
  • Support for clock stretching and multiple controller arbitration across the device
  • Latch-up performance exceeds 100mA per JESD 78, class II
  • ESD protection exceeds JESD 22
    • 4000V Human-body model
    • 1500V Charged-device model
  • Two-channel bidirectional I2C buffer
  • Support for standard mode, fast mode (400kHz), and fast mode+ (1MHz) I2C operation
  • Operating supply voltage range of 0.8V to 5.5V on A-side
  • Operating supply voltage range of 2.2V to 5.5V on B-side
  • Voltage-level translation from 0.8V to 5.5V and 2.2V to 5.5V
  • Footprint and function replacement for TCA9517
  • Active-high repeater-enable input
  • Open-drain I2C I/O
  • 5.5V Tolerant I2C and enable input support
  • Lockup-free operation
  • Powered-off high-impedance I2C bus pins
  • Support for clock stretching and multiple controller arbitration across the device
  • Latch-up performance exceeds 100mA per JESD 78, class II
  • ESD protection exceeds JESD 22
    • 4000V Human-body model
    • 1500V Charged-device model

The TCA9617B is a BiCMOS dual bidirectional buffer intended for I2C bus and SMBus systems. The device provides bidirectional voltage-level translation (up-translation and down-translation) between low voltages (down to 0.8V) and higher voltages(2.2V to 5.5V) in mixed-mode applications. This device enables I2C and similar bus systems to be extended, without degradation of performance even during level shifting.

The TCA9617B buffers both the serial data (SDA) and the serial clock (SCL) signals on the I2C bus, allowing two buses of 550pF to be connected in an I2C application. This device can also be used to separate two halves of a bus for voltage and capacitance.

The TCA9617B is a BiCMOS dual bidirectional buffer intended for I2C bus and SMBus systems. The device provides bidirectional voltage-level translation (up-translation and down-translation) between low voltages (down to 0.8V) and higher voltages(2.2V to 5.5V) in mixed-mode applications. This device enables I2C and similar bus systems to be extended, without degradation of performance even during level shifting.

The TCA9617B buffers both the serial data (SDA) and the serial clock (SCL) signals on the I2C bus, allowing two buses of 550pF to be connected in an I2C application. This device can also be used to separate two halves of a bus for voltage and capacitance.
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Documentación técnica

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* Data sheet TCA9617B Level-Translating FM+ I2 C Bus Repeater datasheet (Rev. C) PDF | HTML 10 ene 2024
Application note Why, When, and How to use I2C Buffers 23 may 2018
Technical article Intro to I2C: what the Internet doesn’t tell you PDF | HTML 24 nov 2016
Application note Choosing the Correct I2C Device for New Designs PDF | HTML 07 sep 2016
Selection guide I2C Infographic Flyer 03 dic 2015
Technical article How to simplify I2C tree when connecting multiple slaves to an I2C master PDF | HTML 15 oct 2015
Application note Understanding the I2C Bus PDF | HTML 30 jun 2015
Application note Maximum Clock Frequency of I2C Bus Using Repeaters 15 may 2015
Application note I2C Bus Pull-Up Resistor Calculation PDF | HTML 13 feb 2015

Diseño y desarrollo

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Modelo de simulación

TCA9617B IBIS MODEL

SCPM039.ZIP (40 KB) - IBIS Model
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TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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