Subject: Re: Re: [TI994A] Weekend warrior Latch/LED question....

From: [email-masked]
Date: Sat, 07 Nov 2009 20:16:44 -0600 (CST)

Because the transistor can better handle the current and it isolates the logic circuit. (Hopefully.)

Just FMI why ?

--- On Sat, 11/7/09, [email-masked] <[email-masked]> wrote:

It would be better practice to use the LS273 to trigger a transistor to operate the LED.

Nov 7, 2009 04:07:34 PM, TI994A@yahoogroups. com wrote:

Is it acceptable/dangerou s to run an LED directly off of the output of a 74ls273 latch? It appears to work but I'd like some engineering (or practical) advise....

Thanks...Marc