SN74LS03: Max current input

Marvin Cantos

Part Number: SN74LS03

Hi Team,

Good day. I am posting this inquiry on behalf of the customer.

"I have a question about the maximum current that this open collector part can safely sink (SN74LS03DR). The datasheet lists this as 8 mA, but the website indicates 16 mA. My spec sheet is from 1988, is the current part capable of a larger sink current?"

Please help to advise. Thank you for extending your support.

Kind regards,

Marvin

over 1 year ago

0 Clemens Ladisch over 1 year ago

Guru 282680 points

LS supports only 8 mA. Apparently, the web site took the value from the SN7403, which shares the same datasheet.

0 Albert Xu1 over 1 year ago

TI__Mastermind 26465 points

Hey Marvin,

To piggyback off Clemens, if you ever see a discrepancy, the datasheet should have the most correct information. Datasheets are updated manually while the website will pull data from sources automatically. This can lead to issues (very rare) like this.

I will contact our website support and inform them of this.

Because of the holidays, TI E2E™ design support forum responses will be delayed from Dec. 25 through Jan. 2. Thank you for your patience.

Logic

Logic forum

SN74LS03: Max current input