TLF5953February 1988CD4020BMCD4020BC14-Stage Ripple Carry Binary CountersCD4040BMCD4040BC12-Stage Ripple Carry Binary CountersCD4060BMCD4060BC14-Stage Ripple Carry Binary CountersGeneral DescriptionThe CD4020BMCD4020BC CD4060BMCD4060BC are14-stage ripple carry binary counters and the CD4040BMCD4040BC is a 12-stage ripple carry binary counter Thecounters are advanced one count on the negative transitionof each clock pulse The counters are reset to the zero stateby a logical ‘‘1’’ at the reset input independent of clockFeaturesYWide supply voltage range10V to 15VYHigh noise immunity045 VDD (typ)YLow power TTLFan out of 2 driving 74Lcompatibilityor 1 driving 74LSYMedium speed operation8 MHz typ at VDD e 10VYSchmitt trigger clock inputConnection DiagramsDual-In-Line PackageCD4020BMCD4020BCTLF5953 – 1Top ViewOrder Number CD4020B CD4040B or CD4060BDual-In-Line PackageCD4040BMCD4040BCTLF5953 – 2Top