DESCRIPTION
●The HCS201 from Microchip Technology Inc. is a code hopping encoder designed for secure Remote Keyless Entry (RKE) systems. The HCS201 utilizes the KEELOQ® code hopping technology, incorporating high security, a small package outline and low cost. The HCS201 is a perfect solution for unidirectional remote keyless entry systems and access control systems.
●FEATURES
●Security
●• Programmable 28-bit serial number
●• Programmable 64-bit encryption key
●• Each transmission is unique
●• 66-bit transmission code length
●• 32-bit hopping code
●• 34-bit fixed code (28-bit serial number, 4-bit button code, 2-bit status)
●• Encryption keys are read protected
●Operating
●• 3.5V-13V operation (2.0V min. using the Step up feature)
●• Three button inputs
●• 7 functions available
●• Selectable baud rate
●• Automatic code word completion
●• Battery low signal transmitted to receiver
●• Non-volatile synchronization data
●Other
●• Simple programming interface
●• On-chip EEPROM
●• On-chip oscillator and timing components
●• Button inputs have internal pull-down resistors
●• Minimum component count
●• Synchronous Transmission mode
●• Built-in step up regulator
