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HCS412

Features: Security• Programmable 64-bit encoder crypt key• Two 64-bit IFF keys• Keys are read protected• 32-bit bi-directional challenge and response using one of two possible keys• 69-bit transmission length• 32-bit hopping code,• 37-bit nonencrypted port...

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SeekIC No. : 004359863 Detail

HCS412: Features: Security• Programmable 64-bit encoder crypt key• Two 64-bit IFF keys• Keys are read protected• 32-bit bi-directional challenge and response using one of two possibl...

HCS412 Data Sheet

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Part Number:
HCS412
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: 2024/5/22

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Product Details

Description



Features:

Security
• Programmable 64-bit encoder crypt key
• Two 64-bit IFF keys
• Keys are read protected
• 32-bit bi-directional challenge and response using one of two possible keys
• 69-bit transmission length
• 32-bit hopping code,
• 37-bit nonencrypted portion
• Programmable 28/32-bit serial number
• 60-bit, read protected seed for secure learning
• Two IFF encryption algorithms
• Delayed counter increment mechanism
• Asynchronous transponder communication
• Transmissions include button Queuing information
Operating
• 2.0V to 6.3V operation
• Three switch inputs: S2, S1, S0 seven functions
• Battery-less bi-directional transponder capability
• Selectable baud rate and code word blanking
• Automatic code word completion
• Battery low detector
• PWM or Manchester data encoding
• Combined transmitter, transponder operation
• Anticollision of multiple transponders
• Passive proximity activation
• Device protected against reverse battery
• Intelligent damping for high Q LC-circuits
• 100 mVPP sensitive LC input




Application

• Automotive remote entry systems
• Automotive alarm systems
• Automotive immobilizers
• Gate and garage openers
• Electronic door locks (Home/Office/Hotel)
• Burglar alarm systems
• Proximity access control




Pinout

Connection Diagram




Specifications

Parameter NameValueProtocols9Transmission Code Length Bits69Other FeaturesPassive Entry Encoder and Transponder, bi-directional authentication, user EEPROM, Queue counterSeed Length 60Code Hoppings Bits32Operating Volage (V)2.0 to 6.6Tunable OSCYesFunction Codes7CRCYes

Parameter Name Value
Protocols 9
Transmission Code Length Bits 69
Other Features Passive Entry Encoder and Transponder, bi-directional authentication, user EEPROM, Queue counter
Seed Length 60
Code Hoppings Bits 32
Operating Volage (V) 2.0 to 6.6
Tunable OSC Yes
Function Codes 7
CRC Yes


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 (Human Body Model)
4000
V
Note: Stresses above those listed under "ABSOLUTE MAXIMUM RATINGS" may cause permanent damage to the device.
* If a battery is inserted in reverse, the protection circuitry switches on, protecting the device and draining the battery.




Description

The HCS412 combines the patented KEELOQ? code hopping technology and bi-directional transponder challenge-and-response security into a single chip solution for logical and physical access control. High security learning mechanisms make this a turnkey solution when used with the KEELOQ? decoders. When the HCS412 is used as a code hopping encoder device, it is ideally suited to keyless entry systems, primarily for vehicles and home garage door openers. It is meant to be a cost-effective, yet secure solution to such systems. The HCS412 can also be used as a secure bi-directional transponder for verification of a token. The HCS412 has a sensitive transponder input that increases the communication range beyond traditional transponder systems. This makes the HCS412 ideal for passive keyless entry, secure access control and identification applications. A single HCS412 can be used as an encoder for Remote Keyless Entry (RKE) and a transponder for immobilization in the same circuit and thereby dramatically reducing the cost of hybrid transmitter/transponder circuits.

The HCS412 combines patented KEELOQ code hopping technology with bi-directional transponder challenge- and-response security into a single chip solution for logical and physical access control.

When used as a code hopping encoder, the HCS412 is ideally suited to keyless entry systems; vehicle and garage door access in particular. The same HCS412 can also be used as a secure bi-directional transponder for contactless token verification. These capabilities make the HCS412 ideal for combined secure access control and identification applications, dramatically reducing the cost of hybrid transmitter/transponder solutions.






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