HCC40xxx, HCC45xxx Datasheet Rad-hard, high voltag.
STMicroelectronics
HCC4040B - Rad-hard 12-stage binary/Ripple counter
HCC40xxx, HCC45xxx Datasheet Rad-hard, high voltage, CMOS logic series Flat-14 Flat-16 DIL-14 DIL-16 Flat-24 DIL-24 The upper metallic lid is not.
