Before revision: FCH171 // \ \__ serial number (including temperature range) // \___ H=gate ("Combinatorial circuit"), J=flip-flop, K=monostable, Q=RAM, R=ROM, Y=miscellaneous etc.
After revision: L=level shifter,FCH171 // \ \__ serial number (including temperature range) // \___ H=gate ("Combinatorial circuit"), J=flip-flop, K=monostable, Q=RAM, R=ROM, Y=miscellaneous etc.