Detectors

Mesh Sensor

Overview
The Mesh Sensor is a mixed-signal IP detecting the enclosure tampering by monitoring its resistivity level at multiple points.

Specifications

Benefits

Timely detection
Small area
Low power
Quick start-up
Silicon proven​

Features

Fully-integrated low-power mesh sensor
16 multiplexed impedance sensing inputs (customized on request)
2 latched alarms signals per sensing input:

  • low detection threshold
  • high detection threshold

16 multiplexed alarm output pairs
Alarm flag test inputs
Power supply voltage range: nominal core voltage ±10%
Operating junction temperature range: -40°C to 125°C
Electrical characteristics of a 65 nm CMOS implementation:

  • startup delay shorter than 60 µs
  • detection time faster than 100 µs
  • typical operating current lower than 4 µA
  • silicon area smaller than 0.1 mm²

Silicon proven in a 65 nm CMOS process

Deliverables

GDSII stream and layer map file
Library Exchange Format (LEF) file
Circuit Description Language (CDL) netlist
Liberty Timing File (.lib)
VHDL behavioral model
Design specification