datasheets 74ls279 free download

File name 74ls279.pdf

SN54/74LS279 QUAD SET-RESET LATCH VCC S1 R Q S1 S2 R Q 16 15 14 13 12 11 10 9 QUAD SET-RESET LATCH LOW POWER SCHOTTKY 1 2 3 4 5 6 7 8 R S1 S2 Q R S1 Q GND J SUFFIX CERAMIC CASE 620-09 TRUTH TABLE 16 1 INPUT OUTPUT S1 S2 R (Q) N SUFFIX L L L h PLASTIC L X H H 16 CASE 648-08 X L H H 1 H H L L H H H No Change L = LOW Voltage Level H = HIGH Voltage Level D SUFFIX X = Don't Care SOIC 16 h = The output is HIGH as long as 1 CASE 751B-03 h = S1 or S2 is LOW. If all inputs go h = HIGH simultaneously, the output h = state is indeterminate; otherwise, h = it follows the Truth Table ORDERING INFORMATION SN54LSXXXJ Ceramic SN74LSXXXN Plastic