74F521
8-bit identity comparator (Philips)
74F521
8-Bit Identity Comparator (Fairchild)
74F521
8-Bit Identity Comparator (National)
74F521
8-Bit Identity Comparators (Texas Instruments)
74F524
8-Bit Registered Comparator (Fairchild)
74F525
Programmable Counter (NXP)
74F50109
Synchronizing dual J-K positive edge-triggered flip-flop (Philips)
74F50728
Synchronizing cascaded dual positive edge-triggered D-type flip-flop (Philips)
74F50729
Synchronizing dual D-type flip-flop (Philips)
74F5074
Synchronizing dual D-type flip-flop/clock driver (Philips)