SN74LS279AN Datasheet PDF - TI

●The SN74LS279AN is a 4 basic S\\-R\ Flip-flop Latch. Under conventional operation, the S\\-R\ inputs are normally held high. When the S\ input is pulsed low, the Q output will be set high. When R\ is pulsed low, the Q output will be reset low. Normally, the S\\-R\ inputs should not be taken low simultaneously. The Q output will be unpredictable in this condition.

● 7V Input voltage

● 2V High-level input voltage

● 0.8V Low-level input voltage

● 8mA Low-level output current

● 20ns Low pulse duration