DM74279 - National Semiconductor

DM74279 Quad Set-Reset Latch

This device contains four independent set-reset type flipflops with one Q output each Connection Diagram Dual-In-Line Package TL F 9785 – 1 Order Number 54279DMQB 54279FMQB or DM74279N NS Package Number J16A N16E or W16A Pin Names Rn Sn Q Description Reset Inputs (Active Low) Set Inputs (Active Low) Outputs Truth Table S1 L L X H H Inputs S2 L X L H H .

Features

Voltage 7V Input Voltage 5 5V Operating Free Air Temperature Range b 55 C to a 125 C 54 DM74 0 C to a 70 C b 65 C to a 150 C Storage Temperature Range Note The ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed The device should not be operated at these limits The parametric values defined in the ‘‘Electrical Characteristics’’ table are not guaranteed at the absolute maximum ratings The ‘‘Recommended Operating Conditions’’ table will define the conditions for actual device operation Recommended Operating Conditions Symbol VCC VIH VIL IOH I.