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SN74LS273: Does TI have parts similar to SN74LS273 but with input voltage at 3.3V

John Chou62
Intellectual 1950 points
Part Number: SN74LS273
Other Parts Discussed in Thread: SN74HC273, SN74AHC273, SN74AHCT273, SN74HCT273

customer only have 3.3V source.

looking for a part similar to SN74LS273 but can input 3.3V 

the SN74LS273 supply voltage  VCC 4.75~5.25V

Thanks 

  • 0
    TI__Guru* 96621 points
    Hi John,
    If you are looking for something to be supplied with 3.3V and operate at 3.3V, I would recommend replacing with the SN74HC273 or SN74AHC273. Both will work at 3.3V without any problems.

    If you need something to have a supply of 5V (and output at 5V), but have inputs at 3.3V, I would recommend using the SN74HCT273 or SN74AHCT273. These are "TTL compatible" CMOS devices.