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SN74AVCB164245VR

Texas Instruments

Bus XCVR Dual 16-CH 3-ST 48-Pin TVSOP T/R

制造商料号#: SN74AVCB164245VR

替代型号#: SN74AVCB164245VR


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描述

文档

替代/替换

信息

This 16-bit (dual-octal) noninverting bus transceiver uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.4 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.4 V to 3.6 V. This allows for universal low-voltage bidirectional translation between any of the 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.

The SN74AVCB164245 is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the outputs so the buses are effectively isolated.

The SN74AVCB164245 is designed so that the control pins (1DIR, 2DIR, 1OE, and 2OE) are supplied by VCCB.

To ensure the high-impedance state during power up or power down, OE should be tied to VCCB through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. If either VCC input is at GND, both ports are in the high-impedance state.

技术参数

  • Member of the Texas Instruments Widebus™ Family
  • DOC™ Circuitry Dynamically Changes Output Impedance, Resulting in Noise Reduction Without Speed Degradation
  • Dynamic Drive Capability Is Equivalent to Standard Outputs With IOH and IOL of ±24 mA at 2.5-V VCC
  • Control Inputs VIH/VIL Levels Are Referenced to VCCB Voltage
  • If Either VCC Input Is at GND, Both Ports Are in the High-Impedance State
  • Overvoltage-Tolerant Inputs/Outputs Allow Mixed-Voltage-Mode Data Communications
  • Ioff Supports Partial-Power-Down Mode Operation
  • Fully Configurable Dual-Rail Design Allows Each Port to Operate Over Full 1.4-V to 3.6-V Power-Supply Range
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)
  • 技术特性

    描述
    寻找类似物料
    Maximum Propagation Delay Time @ Maximum CL
    6@1.8V ns
    Operating Temperature
    -40 to 85 °C
    Lead Finish
    Gold
    Max Processing Temp
    260
    Propagation Delay Test Condition
    30 pF
    Maximum Quiescent Current
    40 uA
    Minimum Operating Supply Voltage
    1.4 V
    Logic Function
    Bus Transceiver with Voltage Translation
    Output Type
    3-State
    Number of Channels per Chip
    16
    Output Level
    CMOS
    Maximum High Level Output Current
    -12 mA
    Screening Level
    Commercial
    Mounting
    Surface Mount
    Maximum Operating Supply Voltage
    3.6 V
    Maximum Low Level Output Current
    12 mA
    Bus Hold
    No
    Tolerant I/Os
    4.6 V
    Number of Direction Control Inputs
    1 Low/High
    Data Flow Direction
    Bi-Directional
    Number of Output Enables per Element
    1 Low
    Input Level
    CMOS
    Typical Operating Supply Voltage
    1.8|2.5|3.3 V
    Fabrication Technology
    CMOS
    Number of Elements per Chip
    2
    Polarity
    Non-Inverting

    ECCN / UNSPSC

    描述
    ECCN:
    EAR99
    计划交货期 B:
    8542.2900-00
    HTSN:
    8542.2900-00
    UNSPSC:
    32101654
    UNSPSC VERSION:
    V15.1101

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