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is there any one with knowledge as to how wouldi interface 2 or more cd4026be counter ic's to create a multi digit display. the chip has a clock input pin which i have connected to a 1 hz source, a clock inhibit (active high pin which i have connected to ground. it also has a display enable in pin which i have connected to +5 volts, the pin is active high. the ic is properly grounded and pin 16 is also connected to the 5 volt supply. when i try to connect a second cd4026 i connect the carryout pin to the second ic clock pin, and connect the second ic clock inhibit pin to the 5 volt source and the dsiplay enable pin to the 5 volt source, pin 16 second ic is connected to the 5 volt source, and the ic is grounded. this seem to be the correct interface for the 2 ic's to count in a mulit digit display, the first ic will count 0 to 9, the carryout pin pulses the clock pin of the second ic as it should to display a 1 after the count has going thru 1 cycle but the second display does not indicate nothing but the 0 it starts with when the unit is first turned on. im thinking im missing a connection somewhere that makes the ic,s interface together. the ic's are cd4026be with decoded display outputs.
Hi, Lex. Your description of the problem may show the solution. You said you "connect the second ic clock inhibit pin to the 5 volt source". That will prevent the chip from counting. Try grounding that pin. The datasheet for that IC is available at..<p>http://focus.ti.com/docs/prod/productfo ... er=CD4026B<p>and a photostat pdf is available at...<p>http://www-s.ti.com/sc/ds/cd4026b.pdf<p>Good luck.
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