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SN74AHCT139 - 产品图解：
SN74AHCT139-双路 2 线路至 4 线路解码器/多路解复用器
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TI产品 - SN74AHCT139介绍

SN74AHCT139 - 双路 2 线路至 4 线路解码器/多路解复用器

SN74AHCT139是TI德州仪器公司的一款解码器/编码器/多路复用器产品，SN74AHCT139是双路 2 线路至 4 线路解码器/多路解复用器，本站介绍了SN74AHCT139的封装应用图解、特点和优点、功能等，并给出了与SN74AHCT139相关的TI元器件型号供参考。

SN74AHCT139 - 双路 2 线路至 4 线路解码器/多路解复用器 - 解码器/编码器/多路复用器 - 特殊逻辑 - 德州仪器

产品描述

The ’AHCT139 devices are dual 2-line to 4-line decoders/demultiplexers designed for 4.5-V to 5.5-V VCC operation. These devices are designed to be used in high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders can be used to minimize the effects of system decoding. When used with high-speed memories utilizing a fast enable circuit, the delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.

The active-low enable (G)\ input can be used as a data line in demultiplexing applications. These decoders/demultiplexers feature fully buffered inputs, each of which represents only one normalized load to its driving circuit.

产品特性

  • Inputs Are TTL-Voltage Compatible
  • Designed Specifically for High-Speed Memory Decoders and Data-Transmission Systems
  • Incorporate Two Enable Inputs to Simplify Cascading and/or Data Reception
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)

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