Download Datasheets HCS200 Device 
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Home - KEELOQ Authentication Products - Encoders - HCS200 Device, download datasheet

Download Datasheets HCS200 Device

The HCS200 is a code hopping encoder designed for Remote Keyless Entry (RKE) systems. The HCS200 utilizes Microchips patented KEELOQ code hopping technology, which incorporates high security, a small package outline and low cost, to make this device a perfect solution for replacement of fixed code devices in unidirectional remote keyless entry systems and access control systems. The HCS200 combines a 32-bit hopping code generated by a non-linear encryption algorithm, with a 28-bit serial number and 6 information bits to create a 66-bit transmission stream. The length of the transmission eliminates the threat of code scanning, and the code hopping mechanism makes each transmission unique, thus rendering code capture and re-send schemes useless. The encryption key, serial number, and configuration data are stored in EEPROM, which is not accessible via any external connection. This makes the HCS200 a very secure unit. The HCS200 provides an easy-to-use serial interface for programming the necessary security keys, system parameters, and configuration data.

Datasheet and Other Documentation

Detailed Content

Lit. Number



HCS200 Datasheet


Download HCS200 Datasheet


In Production

Specification Chart

Reception Length Bits

Transmitters Supported

Operating Voltages




3.5V to 13.0V


Additional Features

Entry Level, Fixed Code Support, Battery Low Indicator

Package Options

8 SOIC 150mil(SN), 8 PDIP(P), 2008-2015 - download datasheets