What the SN74ACT534N is and where it fits
The Texas Instruments SN74ACT534N is an 8-bit D-type flip-flop with tri-state inverted outputs, positive-edge triggered, in a 20-pin PDIP through-hole package. It belongs to the 74ACT family — advanced CMOS logic that runs on a 4.5V to 5.5V supply and delivers 24 mA source/sink per output. The inverted outputs simplify bus polarity matching in data latches, address registers, and status capture on a microprocessor bus. With a 100 MHz clock ceiling and 11.5 ns propagation delay at 5V, 50 pF, it keeps timing margins tight in synchronous designs. The -40°C to 85°C industrial temperature range suits it for factory automation, outdoor telecom, and motor-drive control boards — not just office-temperature gear.
100 MHz clock and 11.5 ns propagation delay — what they mean for the bus
The 100 MHz clock rating sets the maximum toggle rate for the flip-flop itself. The 11.5 ns propagation delay from clock to output at 5V, 50 pF load determines the available setup time for the next device on the bus.