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1-of-8 Data Selectors/Multiplexers With 3-State Outputs


Package | PIN: D | 16
Temp: C (0 to 70)
Carrier: Cut Tape
Qty Price
1-9 $0.63
10-24 $0.55
25-99 $0.50
100-249 $0.43
250-499 $0.39
500-749 $0.30
750-999 $0.23
1000+ $0.20


  • 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


Texas Instruments  SN74F251BDR

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 bus-organized 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.



D0, D1,...D7 = the level of the respective D input.