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TCA9617B

ACTIVO

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

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 mm × 4.9 mm)
  • 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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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos TCA9617B Level-Translating FM+ I2 C Bus Repeater datasheet (Rev. F) PDF | HTML 20/03/2026
Nota sobre la aplicación Preventing ICT-Induced Electrical Overstress on TCA9617B I/O Ports PDF | HTML 5/06/2026
Nota sobre la aplicación Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) PDF | HTML 3/07/2024
Nota sobre la aplicación Why, When, and How to use I2C Buffers 23/05/2018
Artículo técnico Intro to I2C: what the Internet doesn’t tell you PDF | HTML 24/11/2016
Nota sobre la aplicación Choosing the Correct I2C Device for New Designs PDF | HTML 7/09/2016
Guía de selección I2C Infographic Flyer 3/12/2015
Artículo técnico How to simplify I2C tree when connecting multiple slaves to an I2C master PDF | HTML 15/10/2015
Nota sobre la aplicación Understanding the I2C Bus PDF | HTML 30/06/2015
Nota sobre la aplicación Maximum Clock Frequency of I2C Bus Using Repeaters 15/05/2015
Nota sobre la aplicación I2C Bus Pull-Up Resistor Calculation PDF | HTML 13/02/2015

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Modelo de simulación

TCA9617B IBIS MODEL

SCPM039.ZIP (40 KB) - Modelo IBIS
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