Back to Forums
2 posts / 0 new
Last post
#1 Oct 29, 2021
eshelariel
Offline
Last seen: 2 years 1 month ago
Joined: 2020-11-29 13:05

S-R FLIP FLOP

Hey, I can't find a normal S-R Flip Flop in PSpice library.

I saw somthing called "RSFF" but it does'nt maintains the truth table

 

Does anyone know what to do?

Fri, 2021-10-29 11:00
retiredEE
Offline
Last seen: 1 year 4 months ago
Joined: 2018-03-21 12:19

Try the 74279 quadruple latch from the 7400.olb library.  It has two parts (A&B) per package.  Each part is a dual latch where latch 1 has a double S input.

* 74279  QUADRUPLE SBAR-RBAR LATCHES
* The TTL Data Book, Vol 2, 1985, TI

https://www.ti.com/lit/ds/symlink/sn74ls279a.pdf
 

Download PSpice and try it for free! Download Free Trial
Cadence