四路 /S-/R 锁存器
| Function | RS latch |
| Number of channels (#) | 4 |
| Technology Family | LS |
| Supply voltage (Min) (V) | 4.75 |
| Supply voltage (Max) (V) | 5.25 |
| Input type | Bipolar |
| Output type | Push-Pull |
| Data rate (Max) (Mbps) | 70 |
| IOL (Max) (mA) | 4 |
| IOH (Max) (mA) | -0.4 |
| Features | Very high speed (tpd 5-10ns) |
- Package Options Include Plastic "Small Outline" Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPs
- Dependable Texas Instruments Quality and Reliability
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.
