HCF4541BEY Datasheet

Programmable Timer


The HCF4541BEY is a monolithic integrated circuit fabricated in Metal Oxide Semiconductor technology available in DIP and SOP packages. This device is composed of a 16-stages binary counter, an oscillator controlled by 2 external resistors and a capacitor, an output control logic and an automatic power-on reset circuit. The counter varies on positive-edge clock transition and it can be cleared by the MASTER RESET input. The output from this timer is the Q or Q output from the 8th, 13th, or 16th counter stage. HCF4541BEY Features • 16 Stage Binary Counter• Low Symmetr. Output Resistance, Typically 100ωat Vdd= 15v• Oscillator Frequency Range : Dc to 100khz• Auto or Master Reset Disables Oscillator During Reset to Reduce Power Dissipation• Operates with Very Slow Clock Rise And Fall Times• Built-in Low-Power Rc Oscillator• External Clock (Applied To Pin 3) Can be Used Instead Of Oscillator• Operates as 2n Frequency Divider or As a Single-Transition Timer• q/Qselect Provides Output Logic Level Flexibility• Capable of Driving Six Low Power Ttl Loads, Three Low Power Schottky Loads, or Six Htl Loads over The Rated Temp. Range• 5v, 10v and 15v Parametric Ratings• 100% Tested for Quiescent Current at 20v • Meets all Requirements of Jedec Jesd13b " Standard Specifications for Description of b Series Cmos Devices"


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