Electronics industry in the Socialist Republic of Romania
The electronics industry in the Socialist Republic of Romania was characterized by stronger ties to Western Europe when compared to other countries in the Eastern Bloc due to the drive of the Romanian leadership towards greater autonomy from the Soviet Union.
Silicon power transistor SDT9402, showing the "β" logo of I.P.R.S.
CII 72 die, two voltage comparators with separate differential inputs, showing the "β" logo of I.P.R.S.
Single-height Eurocard Board with MMN80CPU microprocessor and 4000-series integrated circuits, all showing the "ME" logo of Microelectronica
7400-series integrated circuits
The 7400 series is a popular logic family of transistor–transistor logic (TTL) integrated circuits (ICs).
The SN7400N chip contains four two-input NAND gates. The SN prefix indicates it was manufactured by Texas Instruments The N suffix is a vendor-specific code indicating plastic DIP packaging. The second line of numbers (7645) is a date code; this chip was manufactured in the 45th week of 1976.
Texas Instruments SN5451 in the original flat package
Die of a 74AHC00D, manufactured by NXP
SN7400 die in the original flat package, manufactured by TI
