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TI产品 - SN74CBTK32245介绍
SN74CBTK32245 - 具有有源钳位下冲保护电路的 32 位 FET 总线开关

SN74CBTK32245是TI公司的一款数字开关产品,SN74CBTK32245是具有有源钳位下冲保护电路的 32 位 FET 总线开关,本页介绍了SN74CBTK32245的产品说明、应用、特性等,并给出了与SN74CBTK32245相关的TI元器件型号供参考。

SN74CBTK32245 - 具有有源钳位下冲保护电路的 32 位 FET 总线开关 - 数字开关 - 信号开关 - TI公司(Texas Instruments,德州仪器)

产品描述

The SN74CBTK32245 device provides 32 bits of high-speed TTL-compatible bus switching. The low on-state resistance of the switch allows connections to be made with minimal propagation delay.

The A and B ports have an active-clamp undershoot-protection circuit. When there is an undershoot, the active-clamp circuit is enabled and current from VCC is supplied to clamp the output, preventing the pass transistor from turning on.

The device is organized as four 8-bit bus switches, two 16-bit bus switches, or one 32-bit bus switch. When output-enable (OE)\ input is low, the switch is on and port A is connected to port B. When OE\ is high, the switch is open and the high-impedance state exists between the two ports.

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.

产品特性

  • Member of Texas Instruments' Widebus+™ Family
  • 5- Switch Connection Between Two Ports
  • TTL-Compatible Input Levels
  • Ioff Supports Partial-Power-Down Mode Operation
  • Active-Clamp Undershoot-Protection Circuit on the I/Os Clamps Undershoots up to –2 V
  • Flow-Through Architecture Optimizes PCB Layout
  • 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)

Widebus+ is a trademark of Texas Instruments.

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