Octal D-type with tri-state bus hold
The 74VHC574FT is an octal D-type flip-flop from Toshiba's 74VHC series, clocked on the positive edge with tri-state non-inverted outputs — the standard register for buffered data capture on a shared bus. Clock frequency reaches 115 MHz, with a max propagation delay of 10.6 ns at 5V into 50 pF — fast enough for most 8-bit bus applications below 100 MHz, where the setup/hold window at the receiver is the tighter constraint.
Supply range and drive — fits mixed-voltage boards
Operates across 2V to 5.5V, so the same BOM line covers a 3.3V microcontroller bus and a 5V legacy peripheral without a second voltage-domain part number. Output drive is 8 mA source and sink per pin — enough to light an LED directly or drive a 5V CMOS input, but plan for a buffer if the trace fans out to more than three loads at 115 MHz. Quiescent current sits at 4 µA typical — negligible in a powered system, but worth noting if the board spends time in standby with the clock gated.
Industrial temperature and compliance
ROHS3 compliant per the lifecycle record — no restricted substances in the package or lead finish, so it passes EU material declarations without exemption paperwork. Input capacitance is 4 pF per pin — a typical value for the 74VHC family; the total bus load adds up when eight inputs are tied to a single clock line, so check the driver's fan-out at 115 MHz.