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Quad /S-/R latches


Package | PIN: PDIP (N) | 16
Temp: C (0 to 70)
Carrier: Partial Tube
Qty Price
1-9 $1.19
10-24 $1.06
25-99 $0.98
100-249 $0.84
250-499 $0.78
500-749 $0.63
750-999 $0.51
1000+ $0.45


  • Package Options Include Plastic "Small Outline" Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPs
  • Dependable Texas Instruments Quality and Reliability

Texas Instruments  SN74LS279AN

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.