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特性

  • Enhanced N-channel FET with no inherent diode to VCC
  • Bidirectional signal flow
  • 24:12 Mux/Demux switches connect inputs to outputs
  • Individual controls for each bank
  • Zero propagation delay, zero ground bounce
  • Undershoot clamp diodes on all switch and control inputs
  • TTL-compatible control inputs
  • Available in a 48-pin QVSOP package

描述

The QS33X257 is a high-speed CMOS TTL-compatible 24:12 multiplexer/demultiplexer. The QS33X257 is functionally compatible to three of the QuickSwitch versions of the 74F257, 74FCT257, and the 74ALS/AS/LS257 quad 2:1 multiplexers. The low ON-resistance of the QS33X257 allows inputs to be connected to outputs without adding propagation delay and without generating additional ground bounce noise. The QS33X257 operates at -40 °C to +85 °C.

应用

  • Logic replacement
  • Video, audio, graphics switching, muxing
  • Hot-swapping, hot-docking
  • Voltage translation (5V to 3.3V)
  • Bus funneling
Part NumberStatusSamplesStockPackageLead Count (#)Temp. GradePb (Lead) FreeCarrier Type
QS33X257Q1GObsoleteN/AOut of StockQVSOP48#CYesTube
QS33X257Q1G8ObsoleteN/AIn StockQVSOP48#CYesReel
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