Microchip HCS360 Datasheet

The HCS360 is a code hopping encoder designed for secure Remote Keyless Entry (RKE) systems. It features a programmable 28/32-bit serial number and 64-bit encryption key, unique transmission for each transmission, 67-bit transmission code length, 32-bit hopping code, and 35-bit fixed code (including serial number, function code, status, and CRC).


Microchip HCS360 Datasheet - cover page
Brand
MICROCHIP
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
34
File format
PDF
File size
462 KB
Published
09 May, 2012
Updated
28 September, 2023
MD5 checksum
13E7F79EE10314F3FEA377C5C22BDD24

About this manual

The HCS360 is a KEELOQ® code hopping encoder designed for secure Remote Keyless Entry (RKE) systems such as automotive entry, garage door openers, and alarm systems. It provides a 67‑bit transmission code and programmable security parameters.

Key features include a 2.0‑6.6 V operating range, four button inputs, selectable baud rates, on‑chip EEPROM (192 bits) for storing a 64‑bit encryption key, serial number, and synchronization counters, and support for PWM or Manchester modulation.

What's inside

  • Features
  • Description
  • Typical Applications
  • Package Types
  • Device Operation
  • EEPROM Memory Organization
  • Configuration Word
  • Key Terms

Specifications

Operating voltage2.0‑6.6 V
Button inputs4
Transmission code length67 bits
Hopping code length32 bits
Serial number size28/32‑bit selectable
Encryption key size64 bits
EEPROM memory192 bits (12 × 16‑bit words)
Synchronization counter size16 bits
Seed code size48 bits

Frequently asked questions

What is the operating voltage range of the HCS360?

The device operates from 2.0 V to 6.6 V.

How many button inputs does the HCS360 have?

It provides four button inputs.

How much EEPROM memory is available in the HCS360?

The encoder contains 192 bits of EEPROM memory, organized as 12 × 16‑bit words.

What is the length of the transmission code generated by the HCS360?

Each transmission uses a 67‑bit code length.

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