HCF4536BEY

Programmable Timers And Oscillators Overview

The HCF4536BEY is a programmable timer integrated circuit from the HCC/HCF4000B series, fabricated using Metal Oxide Semiconductor technology. It features a 24-stage ripple-binary counter capable of counting from 1 to 2^24. The device allows selection of any output from the last 16 stages via a 4-bit BCD code (A, B, C, D) when the 8-BYPASS input is active. It includes an on-chip monostable oscillator and supports external clock or RC oscillator inputs. Operating conditions range from 3V to 20V supply voltage with a maximum quiescent current of 3000 µA at 20V.

Programmable Timers And Oscillators Feature Summary

• 24-stage ripple-binary counter with selectable outputs from the last 16 stages via BCD decoding
• On-chip monostable oscillator for variable pulse width generation
• Supports external clock input or internal RC oscillator configuration
• Fast test mode divides the counter into three parallel 8-stage sections

Programmable Timers And Oscillators Applications

• Time interval measurement using external clock sources
• Pulse generation using the on-chip monostable circuit
• Frequency division in digital timing circuits
• Programmable delay lines utilizing the binary counter stages

Programmable Timers And Oscillators Procurement Notes

Verify component status as the datasheet identifies this part as obsolete. Confirm availability through authorized distributors or secondary markets. Ensure the DIP-16 package matches the required footprint. Check RoHS compliance details if environmental regulations apply to the specific manufacturing batch.

Programmable Timers And Oscillators Selection Notes

Select this component for applications requiring a high-modulus binary counter within a single IC. The HCF4536BEY is suitable for designs operating between 3V and 20V. Consider the propagation delay characteristics, which vary with supply voltage and load capacitance. Ensure the design accommodates the 8-BYPASS logic for accessing higher-order counter stages.

Programmable Timers And Oscillators Part Context

This device belongs to the HCC/HCF4000B series of CMOS logic devices. It is functionally similar to other programmable timers but offers a unique 24-stage architecture. The 'EY' suffix indicates a plastic DIP-16 package variant manufactured by STMicroelectronics. It serves as a flexible building block for complex timing sequences without requiring multiple discrete counters.

Programmable Timers And Oscillators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the product is marked obsolete, equivalent functionality may require redesigning with modern programmable logic or alternative timer ICs that support similar BCD-selectable outputs.