Microchip Technology HCS301-I/SN

Description
The HCS301 from Microchip Technology Inc. is a code-hopping encoder designed for secure Remote Keyless Entry (RKE) systems. It utilizes the KEELOQ code hopping technology, which incorporates high security, a small package outline, and low cost.

Features
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
3.5V - 13.0V operation
Four button inputs
No additional circuitry required
15 functions available
Selectable baud rate
Automatic code word completion
Battery low signal transmitted to receiver
Battery low indication on LED
Non-volatile synchronization data
Functionally identical to HCS300
Easy-to-use programming interface
On-chip EEPROM

Applications
The HCS301 is ideal for Remote Keyless Entry (RKE) applications, including:
Automotive RKE systems
Automotive alarm systems
Automotive immobilizers
Gate and garage door openers
Identity tokens
Burglar alarm systems