HCF4532M013TR

Overview

The HCF4532M013TR is a monolithic integrated circuit fabricated in Metal Oxide Semiconductor technology, functioning as an 8-bit priority encoder. It encodes the highest priority input from eight data lines (D7-D0) into a 3-bit binary code on output lines Q2-Q0. The device features a chip enable input (EI) for inhibition control and provides group select (GS) and enable out (EO) signals for cascading applications. It operates within a supply voltage range of 3V to 20V and supports a wide operating temperature range from -55°C to +125°C.

Feature Summary

• Encodes the highest priority active input among eight data lines into a 3-bit binary representation
• Includes chip enable functionality to inhibit operation when the control input is low
• Provides dedicated status outputs indicating active inputs or idle states for system monitoring
• Supports cascading configurations to expand encoding capabilities beyond eight inputs

Applications

• Keyboard encoder circuits
• Digital-to-analog conversion systems
• Cascaded priority encoder arrays

Procurement Notes

Verify component authenticity through official STMicroelectronics channels or authorized distributors. Confirm package type matches SOP-16 specifications. Check datasheet revision history for updates. Ensure environmental compliance with applicable standards. Validate electrical parameters against specific application requirements before integration.

Selection Notes

Select this component for designs requiring reliable 8-bit priority encoding with CMOS compatibility. Consider the 3V to 20V supply range for flexible power options. Evaluate propagation delay characteristics for timing-sensitive applications. Assess thermal performance within the specified operating temperature range. Verify pinout compatibility with existing PCB layouts.

Part Context

This part belongs to the HCF4532B series of priority encoders manufactured by STMicroelectronics. It utilizes standard Metal Oxide Semiconductor technology for robust digital logic operations. The device is designed for general-purpose encoding tasks in industrial and consumer electronics. It meets JEDEC JESD13B specifications for B-series CMOS devices.

Replacement Considerations

HCF4532BEY is a DIP-16 variant of the same functional device. Cross-reference pinouts and electrical characteristics carefully when substituting packages. Verify that alternative components meet the same voltage and temperature specifications.