DS74S473N
IC LATCH OCT D 20-DIP
Bus Driver, S Series, 1-Func, 8-Bit, True Output, TTL, PDIP20, 0.300 INCH, PLASTIC, MS-001, DIP-20
512 X 8 OTPROM, 60 ns, PDIP20
PROM Parallel 4K-bit 5V