HCS300 - Microchip Technology

HCS300 KEE LOQ Code Hopping Encoder

The HCS300, from Microchip Technology Inc., is a code hopping encoder designed for secure Remote Keyless Entry (RKE) systems. The HCS300 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 .

Features

Security
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• 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 PACKAGE TYPES PDIP, SOIC S0 S1 S2 S3 1 HCS300 2 3 4 8 7 6 5 VDD LED PWM VSS Operating
• 2.0—6.3V operation
• Four button inputs - No additional circuitry required - 15 functions available
• Selectable baud rate
• Automatic code word completion
• Battery low signal transmitted to receiver
• Non-volatile synchronizatio.