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HCS301

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)• Encrypti...

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SeekIC No. : 004359849 Detail

HCS301: Features: Security• Programmable 28-bit serial number• Programmable 64-bit encryption key• Each transmission is unique• 66-bit transmission code length• 32-bit hopping ...

HCS301 Data Sheet

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Part Number:
HCS301
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: 2024/6/4

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Product Details

Description



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 - 13.0V operation
• Four button inputs
- 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
Other
• Functionally identical to HCS300
• 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
• Low external component cost




Pinout

Connection Diagram




Specifications

Parameter NameValueProtocols1Transmission Code Length Bits66Other FeaturesLED Drive, Overflow bits, Time-out, Battery low indicatorSeed Length 32Code Hoppings Bits32Operating Voltage (V)3.5 to 13.0Tunable OSCNoFunction Codes15CRCNo

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) 3.5 to 13.0
Tunable OSC No
Function Codes 15
CRC No


Symbol
Item
Rating
Units
VDD
 Supply voltage
-0.3 to 13.3
V
VIN
 Input voltage
-0.3 to 13.3
V
VOUT
 Output voltage
-0.3 to VDD + 0.3
V
IOUT
 Max output current
25
mA
TSTG
 Storage temperature
-55 to +125
(Note)
TLSOL
 Lead soldering temp
300
(Note)
VESD
 ESD rating
4000
V
Note: Stresses above those listed under "ABSOLUTE MAXIMUM RATINGS" may cause permanent damage to the
device.




Description

The HCS301 is a code hopping encoder designed for secure Remote Keyless Entry (RKE) systems. The HCS301 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 HCS301 combines a 32-bit hopping code generated by a non-linear encryption algorithm, with a 28-bit serial number and six 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 HCS301 a very secure unit. The HCS301 provides an easy-to-use serial interface for programming the necessary security keys, system parameters, and configuration data. Additional features include an LED Drive, Overflow bits, Time-out, and Battery low indicator. The HCS301 operates in a voltage range of 3.5V to 13.0V.

The HCS301, from Microchip Technology Inc., is a code hopping encoder designed for secure Remote Keyless Entry (RKE) systems. The HCS301 utilizes the K EELOQ 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 systems.

The HCS301 combines a 32-bit hopping code generated by a non-linear encryption algorithm, with a 28-bit serial number and six 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 resend (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 HCS301 a very secure unit. The HCS301 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 keys can only be verified after an automatic erase and programming operation. This protects against attempts to gain access to keys and manipulate synchronization values.






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