UHF RFID tag IC with cryptographic authentication and -15 dBm sensitivity

Overview

The chip is intended for use in passive UHF transponder applications. IC derives its operating power from an RF electromagnetic field generated by a reader, which is received and rectified by the chip. The chip sends the answer back to the reader using a backscatter modulation technique. NT1025_4E4 provides a fast and flexible anti-collision protocol based on internal random number generator according to EPC standard. NT1025_4E4 supports all EPC C1G2 mandatory commands. NT1025_4E4 has a 480 bit EEPROM organized in 4 banks. NT1025_4E4 provides an authentication procedure based on the GOST 28147-89 cryptographic algorithm. For implementation of the algorithm, an additional 128-bit nonvolatile memory bank is used to store a secret key (Key128).

Key Features

SMIC EEPROM CMOS 180 nm
Passive operation – no battery needed
Input impedance 14-j580 Ohm
Read sensitivity -15 dBm
Operating frequency 860 - 960 MHz
EPC Class 1 Generation 2 compliant
352 bit memory organized in 4 banks: EPC, TID, RESERVED and USER and 128 bit bank for secret key storing
Secret-key authentication using crypto algorithm
Support of ClearKey, WriteKey and Authenticate custom commands for secret key management and authentication procedure
Small area (0.3 mm2)

Block Diagram

Applications

Protection of goods against counterfeiting
Supply chain management and logistics
Airline baggage handling
Mail and parcel delivery
Automobile billing systems
Asset tagging

Deliverables

Datasheet
Layout view (GDSII)
Characterization report
Behavioral model
SPICE netlist (.cdl)
Integration support

Technical Specifications

Foundry, Node

SMIC EEPROM CMOS 180 nm

Maturity

silicon proven

SMIC

Silicon Proven: 180nm EEPROM

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