SN74LVC1G123: 74LVC1G123 minimum input pulse width

Asaf Abraham

Prodigy 150 points

Part Number: SN74LVC1G123

Hello,

I need to design a on-shot module in which the input signal width is 50nSec, and the output signal width is 500mSec.

The value od Rext if 499kohm, and Cext is 1uF.

Can the SN74LVC1G123 identify 50nSec pulse at the input?

Best regards,

Asaf Abraham

over 4 years ago

0 Clemens Ladisch over 4 years ago

Guru 317320 points

With any supply voltage above 1.8 V, the specified propagation delay is shorter than 50 ns.

0 Asaf Abraham over 4 years ago in reply to Clemens Ladisch

Prodigy 150 points

Hi,

Thanks for your reply.

Just want to make sure - from what you said I understand that when using 5V supply, the 74LVC1G123 will identify 50nSec pulse at the input, regardless the output pulse?

Best regard,

Asaf Abraham

0 Clemens Ladisch over 4 years ago in reply to Asaf Abraham

Guru 317320 points

Yes.

0 Michael J Schultis over 4 years ago in reply to Clemens Ladisch

TI__Mastermind 24975 points

Hello Asaf,

Please refer to table 6.6 in the datasheet.

https://www.ti.com/lit/ds/symlink/sn74lvc1g123.pdf

The minimum input pulse duration required is listed as TwIN and is <50ns in all cases.

Michael

0 Asaf Abraham over 4 years ago in reply to Michael J Schultis

Prodigy 150 points

Thanks!

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SN74LVC1G123: 74LVC1G123 minimum input pulse width