SN74AS257 - 具有三态输出的四路 2 线路至 1 线路数据选择器/多路复用器
SN74AS257是TI公司的一款解码器/编码器/多路复用器产品,SN74AS257是具有三态输出的四路 2 线路至 1 线路数据选择器/多路复用器,本页介绍了SN74AS257的产品说明、应用、特性等,并给出了与SN74AS257相关的TI元器件型号供参考。
SN74AS257 - 具有三态输出的四路 2 线路至 1 线路数据选择器/多路复用器 - 解码器/编码器/多路复用器 - 特殊逻辑 - TI公司(Texas Instruments,德州仪器)
产品描述
These data selectors/multiplexers are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable () input is at a high logic level.
The SN54ALS257A and SN54ALS258A are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS257A, SN74ALS258A, SN74AS257, and SN74AS258 are characterized for operation from 0°C to 70°C.
产品特性
- 3-State Outputs Interface Directly With System Bus
- Provide Bus Interface From Multiple Sources in High-Performance Systems
- Package Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs
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