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TLC555: About reset time

Tsukui Yusuke
Guru 21930 points
Part Number: TLC555

Hi,

Customer is trying to reset the TLC555 using a logic device.
Could you tell me the required time to reset the TLC555I.

Please tell me to time add the High to the RESET pin.

Best regards,
Yusuke

  • 0
    TI__Guru**** 164456 points
    Yusuke-san,

    There is no timing guidance in the data sheet. I suggest a minimum of 2 us low time to reset the TLC555. I checked a sample device and the minimum time was 340ns (2V to 15V supply). 2 us should be more than sufficient to allow for temperature and sample to sample variance

    The reset low voltage (VIL) should be less than 0.3V and rest high voltage (VIH) should be greater than 2V