8-bit D-type flip-flop with tri-state inverted outputs
The Texas Instruments SN74ALS576BN is an 8-bit D-type flip-flop from the 74ALS family, clocked on the positive edge and delivering inverted data through tri-state outputs. It packs one element with eight bits per element in a through-hole 20-PDIP package, running on a 4.5 V to 5.5 V supply. The 30 MHz clock frequency and 14 ns propagation delay at 5 V, 50 pF give it the timing headroom for bus-oriented storage and register applications in commercial-temperature (0°C to 70°C) environments.
The 30 MHz clock and 14 ns propagation delay at 5 V, 50 pF provide timing margin for synchronous buses. The 18 mA quiescent current is the ALS logic draw at idle.
Output drive: 2.6 mA source, 24 mA sink
The tri-state inverted outputs can source 2.6 mA and sink 24 mA per pin. The 24 mA sink capability is the stronger side — it drives standard TTL loads and LED indicators directly, but the 2.6 mA source limit means the high-level output voltage will droop if the fan-out exceeds a few LSTTL inputs. For bus applications, the tri-state control lets multiple devices share a data line without contention.