DM74LS279 Datasheet PDF (Quad S-R Latches) | Download National Semiconductor DM74LS279

DM74LS279 - Quad S-R Latches

Description

The ’LS279 consists of four individual and independent SetReset Latches with active low inputs Two of the four latches have an additonal S input ANDed with the primary S input A low on any S input while the R input is high will be stored in the latch and appear on the corresponding Q output as a hig

Features

Y Alternate military aerospace device (54LS279) is available Contact a National Semiconductor Sales Office Distributor for specifications Connection Diagram Dual-In-Line Package Obsolete TL F 6420.
1 Order Number 54LS279DMQB 54LS279FMQB 54LS279LMQB DM54LS279J DM74LS279M or DM74LS279N See NS Package Number E20A J16A M16A N16E or W16A Function Table Inputs Output S(1) R Q LL LH HL HH H H L Q0 H e High Level L e Low Level Q0 e The Level of Q before the indicated input condition.

Datasheet Details

Part number	DM74LS279
Manufacturer	National Semiconductor (now Texas Instruments)
File Size	334.51 KB
Description	Quad S-R Latches
Datasheet	DM74LS279 Datasheet
Additional preview pages of the DM74LS279 datasheet.

📁 Similar Datasheet

DM74LS279 - Quad S-R Latch (Fairchild Semiconductor)

DM74LS27 - Triple 3-Input NOR Gate (Fairchild Semiconductor)

DM74LS273 - 8-Bit Register (Fairchild Semiconductor)

DM74LS20 - Dual 4-Input NAND Gate (Fairchild Semiconductor)

DM74LS221 - Dual Non-Retriggerable One-Shot (Fairchild Semiconductor)

DM74LS240 - Octal 3-STATE Buffer/Line Driver/Line Receiver (Fairchild Semiconductor)

DM74LS241 - Octal 3-STATE Buffer/Line Driver/Line Receiver (Fairchild Semiconductor)

DM74LS243 - Quadruple Bus Transceiver (Fairchild Semiconductor)

DM74LS244 - Octal 3-STATE Buffer/Line Driver/Line Receiver (Fairchild Semiconductor)

DM74LS245 - 3-STATE Octal Bus Transceiver (Fairchild Semiconductor)

Full PDF Text Transcription

Click to expand full text

54LS279 DM54LS279 DM74LS279 Quad S-R Latches May 1989 54LS279 DM54LS279 DM74LS279 Quad S-R Latches General Description The ’LS279 consists of four individual and independent SetReset Latches with active low inputs Two of the four latches have an additonal S input ANDed with the primary S input A low on any S input while the R input is high will be stored in the latch and appear on the corresponding Q output as a high A low on the R input while the S input is high will clear the Q output to a low Simultaneous transistion of the R and S inputs from low to high will cause the Q output to be indeterminate Both inputs are voltage level triggered and are not affected by transition time of the input data Features Y Alternate military aerospace device (54LS279) is available Contact a National

Published: Aug 5, 2016 |