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GENERAL DESCRIPTION

The HCS362 is a code hopping encoder designed for secure Remote Keyless Entry (RKE) systems. The HCS362 utilizes the KEELOQ? code hopping technology, 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

? Two programmable 64-bit encryption keys

? Programmable 60-bit seed

? Each transmission is unique

? 69-bit transmission code length

? 32-bit hopping code

? 37-bit fixed code (28/32-bit serial number,

4/0-bit function code, 1-bit status, 2-bit CRC/time,

2-bit queue)

? Encryption keys are read protected

Operation

? 2.0V – 6.3V operation

? Four button inputs

? 15 functions available

? Selectable baud rates and code word blanking

? Programmable minimum code word completion

? Battery low signal transmitted to receiver with

programmable threshold

? Non-volatile synchronization data

? PWM and Manchester modulation

Other

? RF Enable output – PLL interface

? Easy to use programming interface

? On-chip EEPROM

? On-chip tunable oscillator and timing components

? Button inputs have internal pull-down resistors

? Current limiting on LED output

? Minimum component count

FEATURES

Security

? Programmable 28/32-bit serial number

? Two programmable 64-bit encryption keys

? Programmable 60-bit seed

? Each transmission is unique

? 69-bit transmission code length

? 32-bit hopping code

? 37-bit fixed code (28/32-bit serial number,

4/0-bit function code, 1-bit status, 2-bit CRC/time,

2-bit queue)

? Encryption keys are read protected

Operation

? 2.0V – 6.3V operation

? Four button inputs

? 15 functions available

? Selectable baud rates and code word blanking

? Programmable minimum code word completion

? Battery low signal transmitted to receiver with

programmable threshold

? Non-volatile synchronization data

? PWM and Manchester modulation

Other

? RF Enable output – PLL interface

? Easy to use programming interface

? On-chip EEPROM

? On-chip tunable oscillator and timing components

? Button inputs have internal pull-down resistors

? Current limiting on LED output

? Minimum component count