EM Microelectronic V4070
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.| Part No. | V4070 |
|---|---|
| Datasheet | V4070 Download |
| Manufacturer |  EM Microelectronic |
| Description | Crypto Contactless Identification Device |
| Buy | Stock & Price |
FEATURES
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● 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 +85°C Temperature 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 Typical Operating Configuration Coil 1 L V4070 Coil 2 Typical value of inductance at 125 KHz is 8 mH Figure 1
DESCRIPTION
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.
