Sofics Datasheet – TSMC 65nm 3V3 ESD Local Clamp – Rad Hard

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This specific IP macro is designed in TSMC 65nm and can be ported to other technologies upon request using Sofics in-house design tool flow.

Sofics Datasheet – [DS-TS65N-3V3-LC-LWC-RH-ESD]

Key Highlights

  • Silicon-proven ESD protection for CMOS technologies
  • High robustness against HBM, CDM, latch-up and system-level stress conditions
  • Low parasitic capacitance
  • Compact layout footprint compared to conventional foundry ESD solutions
  • Customizable trigger, holding voltage, leakage and clamp configuration
  • Modular design enables fast and reliable turnaround and low NRE
  • Radiation hard design for excessive radiation environments

Details

Parameter Value
VDD 3.3V ±10%
VDDIO VDD+0.3V ±10%
Temperature Tj -55C to 125C

Key Features

Parameter Value
TLP 1.33A
HBM 2kV
CDM 500V
Leakage <1nA
Capacitance 231fF
TID >1 MGy
SEE 80 MeV·cm²/mg

Area

Type Size [μm²]
ESD Clamp 1652.31

Summary

This ESD protection IP provides robust on-chip protection for sensitive I/O and interface pins while minimizing impact on signal performance, leakage, and silicon area. The solution is designed for integration in multiple process nodes and can be adapted to specific interface requirements, voltage domains, and foundry design rules.

The protection concept supports reliable operation under HBM and CDM stress conditions and can be customized for higher robustness levels, low-capacitance interfaces, low-leakage applications, or reduced-area.

Pin Schematic

TSMC 65nm 3.3V radiation-hard ESD Local Clamp schematic

Features

  • Local protection for I/O / analog / RF pins
  • Supports HBM and CDM robustness targets
  • Low-capacitance implementation
  • Low-leakage options available
  • Compact ESD clamp layout
  • Compatible with foundry or custom pad ring integration

Sofics offers a broad portfolio of configurable specialty I/Os and ESD protection enabling flexible integration across multiple voltage domains and applications. Additional variants and features can be supported upon request, allowing fast customization through minimal design changes. For more information, visit www.sofics.com or contact us at bd@sofics.com.

Sofics proprietary and confidential © 2026

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