MC14521B 24-Stage Frequency Divider The MC14521B consists of a chain of 24 flip−flops with an input circuit that allows three modes of operation.
The input will function as a crystal oscillator, an RC oscillator, or as an input buffer for an external oscillator.
Each flip−flop divides the frequency of the previous flip−flop by two, consequently this part will count up to 224 = 16,777,216.
The count advances on the negative going edge of the clock.
The outputs of the last seven−stages are available for added flexibility.
http://onsemi.
com Features • All Stages are Resettable • Reset Disables the RC Oscillator for Low Standby Power Drain • RC and Crystal Oscillator Outputs Are Capable of D...

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