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MC74HC4046AFEL  

Clock Generators & Support Products

MC74HC4046AFEL Description

The MC74HC4046AFEL from onsemi is a high-speed Phase Lock Loop (PLL) IC designed for precision clock generation and synchronization applications. Operating within a 3V to 6V supply range, this CMOS-based PLL delivers robust performance with a maximum frequency of 13MHz. Housed in a 16-SOIC package, it features a 1:4 input-to-output ratio and integrates a single PLL circuit, making it ideal for compact, surface-mount designs. Although marked as Obsolete, it remains relevant for legacy systems due to its reliable CMOS input/output compatibility and low-power operation. The device is REACH Unaffected and complies with ECCN EAR99, ensuring broad regulatory acceptance.

MC74HC4046AFEL Features

• High-Speed PLL: Supports frequencies up to 13MHz, enabling precise timing control.
• Wide Voltage Range: Operates from 3V to 6V, suitable for mixed-voltage systems.
• CMOS Compatibility: Ensures seamless integration with CMOS logic families.
• Surface-Mount Design: 16-SOIC package (Tape & Reel) for automated assembly.
• Phase Comparator Options: Includes multiple phase comparators for flexible loop configurations.
• Low Power Consumption: Optimized for energy-efficient applications.
• Stable Performance: MSL 3 (168 Hours) moisture sensitivity ensures reliability in humid environments.

MC74HC4046AFEL Applications

• Clock Synchronization: Ideal for aligning clock signals in communication systems.
• Frequency Synthesis: Used in RF and wireless systems for stable carrier generation.
• Data Recovery: Enhances signal integrity in serial data transmission.
• Motor Control: Provides precise timing for PWM-based motor drives.
• Legacy System Maintenance: Suitable for repairing or upgrading older PLL-based designs.

Conclusion of MC74HC4046AFEL

The MC74HC4046AFEL offers a balance of speed, power efficiency, and integration for PLL-centric designs. While obsolete, its CMOS compatibility, 13MHz capability, and robust packaging make it a pragmatic choice for niche applications. Engineers working on clock recovery, frequency synthesis, or legacy system support will find this IC a reliable solution despite its discontinued status. For new designs, consider modern alternatives, but for specific use cases, this PLL remains a technically sound option.

MC74HC4046AFEL Documents

Download datasheets and manufacturer documentation for MC74HC4046AFEL

Datasheets :

MC74HC4046A      

PCN Obsolescence/ EOL :

Multiple Devices 24/Jan/2011      

HTML Datasheet :

MC74HC4046A      

Environmental Information :

onsemi RoHS       onsemi REACH