Application circuit diagram of CT4004 counting decoder

CT4004 is CT series CMOS integrated circuit decimal counter - seven-segment font decoder circuit, can be directly used with BS201, BS205, BS207 and other common cathode LED digital tube, counting and displaying the input clock pulse signal, using the power supply voltage 4 ~10V, the highest count clock frequency is 100KHZ, CT4004's pinouts are arranged and function as shown in the figure. The functions of CT4004 are shown in Table 9-45.

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CT4004 pinout external lead arrangement and utility circuit diagram

Application circuit diagram for CT4004 and BS205 connection

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