MC14521B - 24-Stage Frequency Divider

onsemi

Key Features

All Stages are Resettable.
Reset Disables the RC Oscillator for Low Standby Power Drain.
RC and Crystal Oscillator Outputs Are Capable of Driving External Loads.
Test Mode to Reduce Test Time.
VDD′ and VSS′ Pins Brought Out on Crystal Oscillator Inverter to Allow the Connection of External Resistors for Low.
Power Operation.
Supply Voltage Range = 3.0 Vdc to 18 Vdc.
Capable of Driving Two Low.
Power TTL Loads or One Lo.

MC14521B 24-stage frequency divider by onsemi - Datasheet Preview

Datasheet Details

Part number	MC14521B
Manufacturer	onsemi
File Size	114.21 KB
Description	24-Stage Frequency Divider
Datasheet	MC14521B Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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.