HCS515/SL

Specialized ICS Overview

The HCS515/SL is a KEELOQ code hopping decoder manufactured by Microchip Technology, housed in a 14-pin SOIC package. It operates within a 4.5V to 5.5V supply range and features an internal oscillator with automatic bit rate detection. The device securely stores the manufacturer’s code and up to seven encoder decryption keys in encrypted internal EEPROM. It supports normal and secure learning mechanisms for unidirectional remote keyless entry systems.

Specialized ICS Feature Summary

• Encrypted storage of manufacturer’s code and up to seven encoder decryption keys
• Internal oscillator with auto bit rate detection for wide transmitter data rate compensation
• Synchronous serial interface (S_DAT/S_CLK) for microcontroller communication
• Supports Normal and Secure learning mechanisms

Specialized ICS Applications

• Automotive remote entry systems
• Automotive alarm systems
• Gate and garage openers
• Electronic door locks
• Burglar alarm systems

Specialized ICS Procurement Notes

Verify that the ordering suffix 'SL' corresponds to the 14-SOIC package variant as indicated by local product fields. Confirm RoHS compliance status directly from the official datasheet or manufacturer documentation before procurement.

Specialized ICS Selection Notes

Select this component for applications requiring a stand-alone decoder compatible with HCS encoders using PWM modulation. Ensure the host system provides a 4.5V–5.5V power supply and utilizes a synchronous serial interface for command execution and data retrieval.

Specialized ICS Part Context

The HCS515 belongs to the KEELOQ family of security devices designed for high-security access control. It implements patented code hopping technology to prevent code grabbing and replay attacks, serving as a dedicated hardware solution for secure remote entry without complex external processing.

Specialized ICS Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.