Power Supply Glitch Detector on TSMC CLN2P

The Glitch Detector macro comprehensively addresses typical SOC power supply and other voltage glitch monitoring needs in a fully integrated easy-to-use macro. The Glitch Detector macro includes an internal bandgap style voltage reference circuit which is used as a reference to compare the voltage supplies against.

The Glitch Detector macro is fully asynchronous with hot outputs, so requires no clock or other synchronizing signal to work correctly. Only when the monitored voltage inputs have exceeded a user-selected voltage level will the respective Glitch Detector output signal indicate that a violation is detected.

The Glitch Detector outputs a core logic level signal, with a high level representing a glitch or continuous voltage above the selected value, and a low level representing a glitch or continuous voltage below the selected value.

Specifications Description Symbol Min Typ Max Units Trigger Voltage Range 0.675 0.935 V Trigger Voltage Precision (untrimmed) -3.5 3.5 % Trigger Voltage Precision (post-trim) -10 10 mV Area (Primary Glitch Detector) A 0.017 sq.mm Area (Additional Glitch Detector) A 0.006 sq.mm Total Power (each Glitch Detector) IDD 12 mA Output Load (Core level logic) CL 50 fF Operational Voltage (Digital) VDD 0.675 0.75 0.935 V Operational Voltage (Analog) VDDA 1.08 1.2 1.32 V Operational Temperature T -40 25 125 C

• Integrated voltage reference for precision stand-alone operation
• Easy to integrate with no additional components or special power requirements
• Easy to use and configure
• Cascadable up to 4 additional glitch detection channels
• Independent programming available for glitch detection levels
• Low power
• Implemented with Analog Bits’ proprietary architecture
• Requires no additional on-chip macros, minimizing power consumption
• Designed for Automotive (AEC-Q100) Grade 2 operation