16bit bcd counter from 4bit bcd counter - 16bit bcd counter from 4bit bcd counter What would be the best way to go about implementing a 16 bit BCD counter given the implementation of this 4 bit BCD counter? Replies: Re: 16bit bcd counter from 4bit bcd counter May I know if previous suggestion is what you are looking for? Replies: Re: 16bit bcd counter from 4bit bcd counter Preferably by extending the 4-bit building block with a clock enable input and a carry output. A bcd counter with respective functionality should be available in the 7400 library, e.g. 74163.