CMOS four-and-a half decimal counter circuit

Published:2011/8/11 3:54:00 Author:John | Keyword: CMOS four-and-a half decimal counter | From:SeekIC

This is the CMOS four-and-a half decimal counter, which includes the count, the latch, by-bit scanning output circuit and protection circuit inside. Only an external capacitor is needed to change the scanning speed freely. Its power supply voltage is within 3 ~ 10V and its static current consumption is less than 1mA. The counting frequency ranges from dc to several megahertz. And it uses DIP-16 pin package. The counting pulses are coupled to DG6010 from high-speed photodiode isolator SL950 to count. Then the BCD code sent by DG6010 is converted into 7-segment signal by CC4511B. Then the 7-segment signal is added to four-phase LED to display.



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