Download Datasheets HCS512 Device 
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Home - KEELOQ Authentication Products - Decoders - HCS512 Device, download datasheet

Download Datasheets HCS512 Device

The HSC512 is a code hopping decoder designed for secure Remote Keyless Entry (RKE) systems. The HCS512 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 keyless entry systems. The manufacturers code, transmitter keys, and synchronization information are stored in protected on-chip EEPROM. The HCS512 operates over a wide voltage range of 3.0 volts to 6.0 volts. The decoder employs automatic baud-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. HCS512 is available in 18-pin DIP/SOIC packages.

Datasheet and Other Documentation

Detailed Content

Lit. Number



HCS512 Datasheet Datasheet


Download HCS512 Datasheet Datasheet


In Production

Specification Chart

Reception Length Bits

Transmitters Supported

Operating Voltages



Up to 4

3.0V to 6.0V

15 Serial Functions 4 Parallel Outputs

Additional Features

Single-chip decoder with secure learning

Package Options

18 PDIP(P), 18 SOIC 300mil(SO), 2008-2015 - download datasheets