Download Datasheets HCS515 Device 
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Home - KEELOQ Authentication Products - Decoders - HCS515 Device, download datasheet

Download Datasheets HCS515 Device

The HSC515 is a code hopping decoder designed for secure Remote Keyless Entry (RKE) systems. The HCS515 utilizes the patented KEELOQ code-hopping system and high security learning mechanisms to make this a canned solution when used with the HCS encoders to implement unidirectional remote and access control systems. The HCS515 can be used as a stand-alone decoder or in conjunction with a microcontroller through serial or parallel interface. The manufacturers code, encoder decryption keys, and synchronization information are stored in encrypted form in internal EEPROM. The HCS515 operates over a wide voltage range of 3.0 volts to 5.5 volts. The decoder employs automatic bit-rate detection, which allows it to compensate for wide variations in transmitter data rate. Sophisticated error checking algorithms are built in to ensure only valid codes are accepted. Typical applications include automotive remote entry systems, automotive alarm systems, automotive immobilizers, gate and garage openers, electronic door locks, identity tokens and burglar alarms. HCS515 is available in 14-pin DIP/SOIC packages.

Datasheet and Other Documentation

Detailed Content

Lit. Number



HCS515 Datasheet Datasheet


Download HCS515 Datasheet Datasheet


HCS515 Rev. A Errata


Download HCS515 Rev. A Errata


In Production

Specification Chart

Reception Length Bits

Transmitters Supported

Operating Voltages



Up to 7

4.5V to 5.5V

15 Serial Functions 2 Parallel Outputs

Additional Features

Full featured decoder with parallel and serial interface to microcontrollers, on-chip 1K user EEPROM

Package Options

14 SOIC 300mil(SO), 14 PDIP(P), 2008-2015 - download datasheets