These devices are transistor-transistor logic dual 4-input NAND gates in the FJ series of integrated circuits. The FJH111 corresponds to ’74 Series’ type 7420N, the FJH116 corresponds to ’64 Series’ type 6420N.
Manufactured: 1974 week 27
-
- FJH111A (1), manufactured 1974 week 27
-
- FJH111A (2), manufactured 1972 week 4