SN74HC251 - Data Selectors/Multiplexers With 3-State Outputs

Updated : 2020-01-09 14:43:44
Description

These data selectors/multiplexers contain full binary decoding to select 1-of-8 data sources and feature strobe-controlled complementary 3-state outputs.

The 3-state outputs can interface with and drive data lines of bus-organized systems. With all but one of the common outputs disabled (in the high-impedance state), the low impedance of the single enabled output drives the bus line to a high or low logic level. Both outputs are controlled by the output-enable (OE)\ input. The outputs are disabled when OE\ is high.

Products containing the "SN74HC251" keyword are: SN74HC251D , SN74HC251D , SN74HC251DBR , SN74HC251DBR , SN74HC251DBRG4 , SN74HC251DE4 , SN74HC251DE4 , SN74HC251DG4 , SN74HC251DG4 , SN74HC251DR , SN74HC251DRE4 , SN74HC251DRG4 , SN74HC251DRG4 , SN74HC251DT , SN74HC251DT , SN74HC251J , SN74HC251N , SN74HC251N , SN74HC251N DIP16 , SN74HC251N(NEW+PB FREE)
Features

  • 3-State Version of ’HC151
  • Wide Operating Voltage Range of 2 V to 6 V
  • High-Current 3-State Outputs Interface Directly With System Bus or Can Drive Up To 15 LSTTL Loads
  • Low Power Consumption, 80-µA Max ICC
  • Typical tpd = 9 ns
  • ±6-mA Output Drive at 5 V
  • Low Input Current of 1 µA Max
  • Perform Parallel-to-Serial Conversion
  • Complementary Outputs Provide True and Inverted Data