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Original question:

SN74LVC1G123: Output Pulse duration

SN74LVC1G123: 74LVC1G123 - can i generate output pulse width of 10 seconds

LS
Prodigy 80 points
Part Number: SN74LVC1G123
Other Parts Discussed in Thread: TPL5110

hello ti,

we want to program output pulse width of approx 10 seconds, 

is SN74LVC1G123 is able to generate this much duration pulse.,

looking at the datasheet , the maximum duration shown is with 200K resistor and 10^6 pf capacitor 

is 10^8 ns i.e. 100ms as seen below 

may you please confirm if pulse duration upto 10seconds long is possible with 74LVC1G123 monostable multivibrator 

Regards

ls

  • 0
    Guru 261240 points

    The SN74LVC1G123 itself does not have an upper limit. But with very large resistors, the leakage currents of the device and of the capacitor will make the result very inaccurate.

    This is typically done with a microcontroller, or a timer like the TPL5110 (which can generates a short pulse after 10 s).