The SN74ALS374AN: The ROHS3 compliance covers global RoHS requirements without exemption paperwork.
Timing and drive — the numbers that decide fit
The 35 MHz maximum clock frequency sets the upper data-rate boundary — above that, setup/hold margins collapse. With a 16 ns propagation delay at 5V and 50 pF load, the output settles within one clock period at 35 MHz, but the downstream logic must budget that delay into its timing closure. Output drive is rated 2.6 mA source, 24 mA sink — the sink current is nearly 10× the source, so this part drives heavy capacitive loads on the falling edge better than the rising edge. Quiescent supply current is 19 mA typical, which is modest for a bipolar 74ALS part but higher than a CMOS equivalent.
Package and temperature — legacy footprint, commercial environment
The 20-pin DIP (0.300" width, 7.62 mm) through-hole package is a legacy footprint — it plugs into a standard breadboard or socket, but any migration to a surface-mount alternative (like the SN74LVC574APWT in TSSOP) requires a board layout change.