V4070

Features: • On Chip Crypto-Algorithm• Two Way Authentication protocol• 96 bits of Secret-Key in EEPROM (unreadable)• 32 bits of fix Device Identification• 30 bits of USER_MEMORY (UM) with read access (OTP)• Secret-Key programmable via CID-Interface• Lock-B...

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V4070 Picture
SeekIC No. : 004539807 Detail

V4070: Features: • On Chip Crypto-Algorithm• Two Way Authentication protocol• 96 bits of Secret-Key in EEPROM (unreadable)• 32 bits of fix Device Identification• 30 bits of US...

floor Price/Ceiling Price

Part Number:
V4070
Supply Ability:
5000

Price Break

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

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268 Transactions

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Upload time: 2024/3/27

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Product Details

Description



Features:

• On Chip Crypto-Algorithm
• Two Way Authentication protocol
• 96 bits of Secret-Key in EEPROM (unreadable)
• 32 bits of fix Device Identification
• 30 bits of USER_MEMORY (UM) with read access (OTP)
• Secret-Key programmable via CID-Interface
• Lock-Bits to inhibit programming
• Data Transmission performed by Amplitude Modulation
• Bit Period = 32 periods of carrier frequency
• 200 pF on chip Resonant Capacitor (untrimmed)
• -40 to +85Temperature range
• 115 kHz TO 135 kHz Field Frequency
• On chip Rectifier and Voltage Limiter
• No external supply buffer capacitance needed due to low power consumption



Application

• High security automotive immobilizer
• High security hands-free access control



Specifications

Parameter
Symb.
Min.
Max.
Unit
supply voltage
VDD
-0.3
9.5
V
Voltage at remaining pins
Vpin
VSS - 0.3
VDD + 0.3
V
Storage temp.
Tstore
-55
125
Operating temp.
Top
-40
85
Maximum AC peak Current induced on COIL1 and COIL2
ICOIL
-30
30
mA
Stresses above these listed maximum ratings may cause permanent damage to the device. Exposure beyond specified electrical characteristics may affect device reliability or cause malfunction.


Description

The V4070 is a CMOS integrated circuit intended for use in electronic Read/Write RF Transponders. The chip contains an implementation of a crypto-algorithm with 96 Bits of user configurable secret-key contained in EEPROM. It also provides a unique Device Identification of 32 Bits that can never be modified as well as 30 Bits of freely programmable USER-MEMORY. Bits 15 and 14 of word 1 are used as Lock-Bits. The memory can only be accessed for writing or erasing if these two bits have the contents «10» as when they are delivered.

The V4070 transmits data to the transceiver by modulating the amplitude of the electromagnetic field, and receives data and commands in a similar way. The coil of the tuned circuit is the only external component required, all remaining functions are integrated in the chip.




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