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HCS365

Features: Security• Two programmable 32-bit serial numbers• Two programmable 64-bit crypt keys• Two programmable 60-bit seed values• Each transmission is unique• 67/69-bit transmission code length• 32-bit hopping code• Crypt keys are read protectedOperatin...

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SeekIC No. : 004359857 Detail

HCS365: Features: Security• Two programmable 32-bit serial numbers• Two programmable 64-bit crypt keys• Two programmable 60-bit seed values• Each transmission is unique• 67/69-...

HCS365 Data Sheet

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Part Number:
HCS365
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: 2025/12/21

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Product Details

Description



Features:

Security
• Two programmable 32-bit serial numbers
• Two programmable 64-bit crypt keys
• Two programmable 60-bit seed values
• Each transmission is unique
• 67/69-bit transmission code length
• 32-bit hopping code
• Crypt keys are read protected
Operating
• 2.05-5.5V operation
• Four button inputs
• 15 functions available
• Four selectable baud rates
• Selectable minimum code word completion
• Battery low signal transmitted to receiver
• Nonvolatile synchronization data
• PWM, VPWM, PPM, and Manchester modulation
• Button queue information transmitted
• Dual Encoder functionality
Other
• On-chip EEPROM
• On-chip tuned oscillator (±10% over voltage and temperature)
• Button inputs have internal pull-down resistors
• LED output
• PLL control for ASK and FSK
• Low external component count




Application

The HCS365 is ideal for Remote Keyless Entry (RKE)
applications. These applications include:
• Automotive RKE systems
• Automotive alarm systems
• Automotive immobilizers
• Gate and garage door openers
• Identity tokens
• Burglar alarm systems




Specifications

Parameter Name Value
Protocols 29
Transmission Code Length Bits 69
Other Features Dual Encoder Operation, 4 inputs, Queue counter
Seed Length 0
Code Hoppings Bits 32
Operating Voltage (V) 2.05 to 5.5
Tunable OSC Yes
Function Codes 15
CRC Yes





Description

The HCS365 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 HCS365 combines a 32-bit hopping code generated by a non-linear encryption algorithm, with a 28/32-bit serial number and 5/3 status bits to create a 69-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 encoder key, serial number, and configuration data are stored in EEPROM, which is not accessible via any external connection. This makes the HCS365 a very secure unit. The HCS365 provides an easy-to-use serial interface for programming the necessary security keys, system parameters, and configuration data. The HCS365 operates over a wide voltage range of 2.05V to 5.5V 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 a PWM, VPWM, PPM, Manchester encoding, an internal tunable oscillator, Dual encoder operation, PLL interface and a Queue counter.




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