7406N IC

SN7407N IC
digitale; buffer,centralina; Canali: 6; THT; DIP14

74121N IC
monostable multivibrator

SN7416 IC
Hex Inverter Buffers/Drivers With Open-Collector High-Voltage Outputs

SN7474N IC
DUAL D-TYPE POSITIVE-EDGE-TRIGGERED FLIP-FLOPS WITH PRESET AND CLEAR