HCS362 Datasheet PDF - Microchip Technology

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