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SN74AVCA164245 - 产品图解：
SN74AVCA164245-具有可配置电压转换和 3 态输出的 16 位双电源总线收发器
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TI产品 - SN74AVCA164245介绍

SN74AVCA164245 - 具有可配置电压转换和 3 态输出的 16 位双电源总线收发器

SN74AVCA164245是TI德州仪器公司的一款应用特定电压转换产品，SN74AVCA164245是具有可配置电压转换和 3 态输出的 16 位双电源总线收发器，本站介绍了SN74AVCA164245的封装应用图解、特点和优点、功能等，并给出了与SN74AVCA164245相关的TI元器件型号供参考。

SN74AVCA164245 - 具有可配置电压转换和 3 态输出的 16 位双电源总线收发器 - 应用特定电压转换 - 电压电平转换 - 德州仪器

产品描述

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 SN74AVCA164245 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 SN74AVCA164245 is designed so that the control pins (1DIR, 2DIR, 1OE\, and 2OE\) are supplied by VCCA.

To ensure the high-impedance state during power up or power down, OE\ should be tied to VCCA 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, then both ports are in the high-impedance state.

产品特性

  • 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 VCCA 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 the 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)

DOC and Widebus are trademarks of Texas Instruments.

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