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Technical Specifications
Parameters and characteristics for this part
| Specification | SNJ54LS279AFK |
|---|---|
| Circuit | 1:1 |
| Current - Output High, Low [custom] | 4 mA |
| Current - Output High, Low [custom] | 400 µA |
| Delay Time - Propagation | 27 ns |
| Independent Circuits | 4 |
| Logic Type | S-R Latch |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -55 °C |
| Output Type | 1.81 mOhm |
| Package / Case | 20-CLCC |
| Supplier Device Package | 20-LCCC (8.89x8.89) |
| Voltage - Supply [Max] | 5.5 V |
| Voltage - Supply [Min] | 4.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Bulk | 12 | $ 26.82 | |
| Texas Instruments | TUBE | 1 | $ 32.61 | |
| 100 | $ 28.49 | |||
| 250 | $ 21.96 | |||
| 1000 | $ 19.65 | |||
Description
General part information
SN54LS279A Series
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.
Documents
Technical documentation and resources
