SN54LS279A Series

Quadruple /S-/R Latches

Catalog

Quadruple /S-/R Latches

Part	Current - Output High	Current - Output Low	Circuit	Delay Time - Propagation	Package Width	Package Name	Package Length	Operating Temperature (Max)	Operating Temperature (Min)	Logic Type	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Independent Circuits	Mounting Type	Output Type	Package / Case
Texas Instruments SN54LS279AJ	400 µA	4 mA	1:1	27 ns	7.62 mm	16-CDIP	0.3 in	125 °C	-55 °C	S-R Latch	5.5 V	4.5 V	4	Through Hole	Standard
Texas Instruments SNJ54LS279AW	400 µA	4 mA	1:1	27 ns		16-CFP		125 °C	-55 °C	S-R Latch	5.5 V	4.5 V	4	Surface Mount	Standard	16-CFlatPack
Texas Instruments 7601801FA	400 µA	4 mA	1:1	27 ns		16-CFP		125 °C	-55 °C	S-R Latch	5.5 V	4.5 V	4	Surface Mount	Standard	16-CFlatPack
Texas Instruments SNJ54LS279AFK	400 µA	4 mA	1:1	27 ns	8.89 mm	20-LCCC	8.89 mm	125 °C	-55 °C	S-R Latch	5.5 V	4.5 V	4	Surface Mount	Standard	20-CLCC
Texas Instruments SNJ54LS279AJ	400 µA	4 mA	1:1	27 ns	7.62 mm	16-CDIP	0.3 in	125 °C	-55 °C	S-R Latch	5.5 V	4.5 V	4	Through Hole	Standard
Texas Instruments 76018012A	400 µA	4 mA	1:1	27 ns	8.89 mm	20-LCCC	8.89 mm	125 °C	-55 °C	S-R Latch	5.5 V	4.5 V	4	Surface Mount	Standard	20-CLCC

Catalog

Quadruple /S-/R Latches

Description

The ’279 offers 4 basic S\-R\ flip-flop latches in one 16-pin, 300-mil package. 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. The ’279 offers 4 basic S\-R\ flip-flop latches in one 16-pin, 300-mil package. 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.