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HCS300

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...

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SeekIC No. : 004359848 Detail

HCS300: Features: • Programmable 28-bit serial number• Programmable 64-bit encryption key• Each transmission is unique• 66-bit transmission code length• 32-bit hopping codeR...

HCS300 Data Sheet

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Part Number:
HCS300
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/20

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Product Details

Description



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
• 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 synchronization data
• Easy to use programming interface
• On-chip EEPROM
• On-chip oscillator and timing components
• Button inputs have internal pulldown resistors
• Current limiting on LED output
• Minimum component count
• Synchronous transmission mode
• Automotive RKE systems
• Automotive alarm systems
• Automotive immobilizers
• Gate and garage door openers
• Identity tokens
• Burglar alarm systems




Application

• Automotive RKE systems
• Automotive alarm systems
• Automotive immobilizers
• Gate and garage door openers
• Identity tokens
• Burglar alarm systems




Pinout

Connection Diagram




Specifications

Symbol Item Rating Units
VDD Supply voltage -0.3 to 6.6 V
VIN Input voltage -0.3 to VDD + 0.3 V
VOUT Output voltage -0.3 to VDD + 0.3 V
IOUT Max output current 50 mA
TSTG Storage temperature -55 to +125 C (Note)
TLSOL Lead soldering temp 300 C (Note)
VESD ESD rating 4000 V


Parameter Name Value
Protocols 1
Transmission Code Length Bits 66
Other Features LED Drive, Overflow bits, Time-out, Battery low indicator
Seed Length 32
Code Hoppings Bits 32
Operating Voltage (V) 2.0 to 6.3
Tunable OSC No
Function Codes 15
CRC No





Description

The HCS300 is a code hopping encoder designed for secure Remote Keyless Entry (RKE) systems.It utilizes Microchip's patented KEELOQ? 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. The HCS300 combines a 32-bit hopping code generated by a non-linear encryption algorithm, with a 28-bit serial number and 6 status bits to create a 66-bit transmission stream. The length of the transmission eliminates the threat of code scanning and the code hopping mechanism makes each transmission unique, thus rendering code capture and re-send (code grabbing) schemes useless. The encryption key, serial number, and configuration data are stored in EEPROM, which is not accessible via any external connection. This makes the HCS300 a very secure unit. The HCS300 provides an easy-to-use serial interface for programming the necessary security keys, system parameters, and configuration data. The encryption keys and code combinations are programmable but read-protected. The HCS300 operates over a wide voltage range of 2.0V to 6.3V and has four button inputs in an 8-pin configuration. This allows the system designer the freedom to utilize up to 15 functions. Additional features include an LED Drive, Overflow bits, Time-out, and Battery low indicator. The HCS301 operates in a voltage range of 2.0V to 6.3V.




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