SN74AS253A - 具有三态输出的双路 4 选 1 数据选择器/多路复用器

SN74AS253A是TI德州仪器公司的一款解码器/编码器/多路复用器产品，SN74AS253A是具有三态输出的双路 4 选 1 数据选择器/多路复用器，本站介绍了SN74AS253A的封装应用图解、特点和优点、功能等，并给出了与SN74AS253A相关的TI元器件型号供参考。

SN74AS253A - 具有三态输出的双路 4 选 1 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 - 德州仪器

产品描述

These data selectors/multiplexers contain inverters and drivers to supply full binary decoding data selection to the AND-OR gates. Separate output control inputs are provided for each of the two 4-line sections.

The 3-state outputs can interface with and drive data lines of bus-organized systems. With all but one of the common outputs disabled (at a high-impedance state), the low impedance of the single enabled output drives the bus line to a high or low logic level. Each output has its own output-enable () input. The output is disabled when is high.

The SN54ALS253 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS253 and SN74AS253A are characterized for operation from 0°C to 70°C.

Select inputs A and B are common to both sections.

产品特性

3-State Versions of the ´ALS153 and SN74AS153
Permits Multiplexing From n Lines to One Line
Performs Parallel-to-Serial Conversion
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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