SN54HC251 - Data Selectors/Multiplexers With 3-State Outputs

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 "SN54HC251" keyword are: SN54HC251J , SN54HC251JUG

• 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 I_CC
• Typical t_pd = 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