SN74LS253 - 具有三态输出的双路 4 线路至 1 线路数据选择器/多路复用器

SN74LS253是TI德州仪器公司的一款解码器/编码器/多路复用器产品，SN74LS253是具有三态输出的双路 4 线路至 1 线路数据选择器/多路复用器，本站介绍了SN74LS253的封装应用图解、特点和优点、功能等，并给出了与SN74LS253相关的TI元器件型号供参考。

SN74LS253 - 具有三态输出的双路 4 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 - 德州仪器

产品描述

Each of these Schottky-clamped data selectors/multiplexers contains inverters and drivers to supply fully complementary, on-chip, binary decoding data selection to the AND-OR gates. Separate output control inputs are provided for each of the two four-line sections.

The three-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 will drive the bus line to a high or low logic level.

产品特性

Three-State Version of SN54/74LS153, SN54/74S153
Schottky-Diode-Clamped Transistors
Permits Multiplexing from N Lines to 1 Line
Performs Parallel-to Serial Conversion
Fully Compatible with Most TTL Circuits
Low Power Dissipation
- 'LS253 … 35 mW Typical
- 'S253 … 225 mW Typical

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