I wanna ask about S'R' Latch IC 74LS279 which having an Extra "S" input pin for two latches .The picture is attached herewith what's the reason to provide them. Can't we left those two pins (pin(3) and pin(11)) dedicated for S'?Sir, i am very hopeful that you would respond.
Datasheet of above IC could be seen here
Datasheet of above IC could be seen here
74LS279 Latch Datasheet pdf - S-R Latch. Equivalent, Catalog
Fairchild Semiconductor 74LS279 | Latch. DM74LS279 Quad S-R Latch August 1986 Revised March 2000 DM74LS279 Quad S-R Latch General Descripti.
datasheetspdf.com