The DM54LS279 by National Semiconductor is a Quad S-R Latches. Below is the official datasheet preview.
| Part number | DM54LS279, DM54LS279J |
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| Manufacturer | National Semiconductor |
| File Size | 137.77 KB |
| Description | Quad S-R Latches |
| Datasheet |
 DM54LS279J_NationalSemiconductor.pdf
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| Note |
This datasheet PDF includes multiple part numbers: DM54LS279, DM54LS279J. Please refer to the document for exact specifications by model. |
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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 inpu
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