DESCRIPTION

The HCS360 is a code hopping encoder designed for secure Remote Keyless Entry (RKE) systems. The HCS360 utilizes the KEELOQ? code hopping technol ogy, which incorporates high security, a small package outline and low cost, to make this device a perfect solution for unidirectional remote keyless entry systems and access control systems.

FEATURES

Security

? Programmable 28/32-bit serial number

? Programmable 64-bit encryption key

? Each transmission is unique

? 67-bit transmission code length

? 32-bit hopping code

? 35-bit fixed code (28/32-bit serial number, 4/0-bit function code, 1-bit status, 2-bit CRC)

? Encryption keys are read protected

Operating

? 2.0-6.6V operation

? Four button inputs

- 15 functions available

? Selectable baud rate

? Automatic code word completion

? Battery low signal transmitted to receiver

? Nonvolatile synchronization data

? PWM and Manchester modulation

Other

? Easy-to-use programming interface

? On-chip EEPROM

? On-chip oscillator and timing components

? Button inputs have internal pull-down resistors

? Current limiting on LED output

? Minimum component count

Enhanced Features Over HCS300

? 48-bit seed vs. 32-bit seed

? 2-bit CRC for error detection

? 28/32-bit serial number select

? Two seed transmission methods

? PWM and Manchester modulation

? IR Modulation mode

Typical Applications

The HCS360 is ideal for Remote Keyless Entry (RKE) applications. These applications include:

? Automotive RKE systems

? Automotive alarm systems

? Automotive immobilizers

? Gate and garage door openers

? Identity tokens

? Burglar alarm systems