SN74F253是TI公司的一款解码器/编码器/多路复用器产品，SN74F253是具有三态输出的双路 4 选 1 数据选择器/多路复用器，本页介绍了SN74F253的产品说明、应用、特性等，并给出了与SN74F253相关的TI元器件型号供参考。
SN74F253 - 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 - TI公司（Texas Instruments，德州仪器）
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 will drive the bus line to a high or low logic level. Each output has its own strobe (G\) inputs. The output is disabled when its strobe is high.
The SN54F253 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74F253 is characterized for operation from 0°C to 70°C.
Select inputs A and B are common to both sections.
- 3-State Versions of SN54F153 and SN74F153
- Permits Multiplexing From N Lines to One Line
- Performs Parallel-to-Serial Conversion
- Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs
