SN74F251BDR

具有三态输出的 8 选 1 数据选择器/多路复用器

• 3-State Versions of SN54F151B and SN74F151B

• 3-State Outputs Interface Directly With System Bus

• Performs Parallel-to-Serial Conversion

• Complementary Outputs Provide True and Inverted Data

• Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs

Description

These data selectors/multiplexers contain full binary decoding to select one of eight data sources and feature strobe-controlled complementary outputs. The 3-state outputs can interface with and drive data lines of busorganized systems. When the strobe (G) input is high, both outputs are in a high-impedance state in which both the upper and lower transistors of each totem-pole output are off, and the output neither drives nor loads the bus significantly.

The SN54F251B is characterized for operation over the full military temperature range of −55°C to 125°C. The SN74F251B is characterized for operation from 0°C to 70°C.