24 Stage Frequency Divider

The HCF4521B is a monolithic integrated circuit, available in 16-lead dual-in-line plastic package and plasticmicro packages. The HCF4521B have a chain of 24 Flip-Flops with an input circuit that allows three modes of operation. The input circuit functions as a crystal or an RC Oscillator or as an input Buffer for an external Oscillator Each Flip-Flop performs a divide-by-two function giving a total count of 224 = 16,777,216. The count advances on the negative going edge of the Clock Access is available to the final seven stages giving the device added flexibility. By STMicroelectronics
HCF4521B 's PackagesHCF4521B 's pdf datasheet

HCF4521B Pinout, Pinouts
HCF4521B pinout,Pin out
This is one package pinout of HCF4521B,If you need more pinouts please download HCF4521B's pdf datasheet.

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