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Physical Unclonable Function (PUF)


The Physical Unclonable Function (PUF) is a fully integrated analog IP generating a stable number from random local process variations.


▪ stable 128-bit number generated from random local process variations;
▪ fully integrated analog IP based on a current-mode architecture;
▪ 128 reliable bits selected among a total of 256 bits (size customized on request);
▪ bit stability verified through a margin check mechanism;
▪ reliable bits stable over voltage, temperature and aging;
▪ typical retention time under normal operating conditions higher than 10 years;
▪ typical characteristics of a 55 nm CMOS implementation:
− power supply voltage range: 1.2 V ±10%;
− operating junction temperature range: -40°C to 125°C;
− typical bit reading time shorter than 10 µs;
− typical operating current during bit reading smaller than 20 µA;
− typical standby current smaller than 1 µA;
− silicon area smaller than 0.04 mm².
▪ silicon proven in 65 nm and 55 nm CMOS processes.


▪ GDSII stream;
▪ Layer map file;
▪ Library Exchange Format (LEF) file;
▪ Circuit Description Language (CDL) netlist;
▪ Liberty Timing File (.lib);
▪ VHDL behavioral model;
▪ design specification.

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