Tillbaka till Texas Instruments

Texas Instruments PCA9306 Voltage-Level Translator

Texas Instruments PCA9306 voltage-level translator allows bidirectional voltage translations between 1.2V and 5V without the use of a direction pin. The low ON-state resistance of the switch allows connections to be made with minimal propagation delay. The TI PCA9306 voltage-level translator is I²C and SMBus compatible and enables a system designer to isolate two halves of a bus, allowing more I²C devices or longer trace length to be accommodated.

Features

  • 2-Bit Bidirectional Translator for SDA and SCL
  • Lines in Mixed-Mode I2C Applications
  • I2C and SMBus Compatible
  • Less Than 1.5ns Maximum Propagation Delay to
  • Accommodate Standard-Mode and Fast-Mode I2C
  • Devices and Multiple Masters
  • Allows Voltage-Level Translation Between
    • 1.2V VREF1 and 1.8V, 2.5V, 3.3V, or 5V VREF2
    • 1.8V VREF1 and 2.5V, 3.3V, or 5V VREF2
    • 2.5V VREF1 and 3.3V or 5V VREF2
    • 3.3V VREF1 and 5V VREF2
  • Provides Bidirectional Voltage Translation With No Direction Pin
  • Low 3.5- ON-State Resistance Between Input and Output Ports Provides Less Signal Distortion
  • Open-Drain I2C I/O Ports (SCL1, SDA1, SCL2, and SDA2)
  • 5V Tolerant I2C I/O Ports to Support Mixed-Mode Signal Operation
  • High-Impedance SCL1, SDA1, SCL2, and SDA2 Pins for EN = Low
  • Lockup-Free Operation for Isolation When EN = Low
  • Flow-Through Pinout for Ease of Printed-Circuit-
  • Board Trace Routing
  • Latch-Up Performance Exceeds 100mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 2000V Human-Body Model (A114-A)
    • 1000V Charged-Device Model (C101)

Applications

  • I2C, SMBus, PMBus, MDIO, UART, Low-Speed SDIO, GPIO, and Other Two-Signal Interfaces
  • Servers
  • Routers (Telecom Switching Equipment)
  • Personal Computers
  • Industrial Automation
Publicerad: 2011-01-17 | Uppdaterad: 2022-03-10