Functional Safety for ISO 26262, IEC 61508 and IEC 60730 Applications
Our Functional Safety Ecosystem
When safety is critical to the success of your design, you can count on our proven experience to help you meet the functional safety requirements of your touch projects while minimizing cost and development time.
The Functional Safety Touch Library is one component of our functional safety support resources. We also offer:
- Functional safety-compliant and functional safety-ready microcontrollers (MCUs)
- Functional safety product documentation including FMEDA reports and safety manuals
- Functional safety diagnostic code for MCUs
- Functional safety-certified compiler
Our Automotive and Transportation area offers a variety of example applications and information on design resources that will help you create safety-critical designs with our functional safety ecosystem.
Touch Features
The Functional Safety Touch Library (Part Number: FuSaTL) speeds up your development of capacitive touch buttons for applications that target ISO 26262 certification, such as cruise control buttons on steering wheels or touch gear shifters. A flexible solution for creating high-performance safety touch projects, this library supports these features:
- Self-sensing and mutual sensing
- Water-tolerant touch with Driven Shield+
- Low-power support
- Boost mode for increased Signal-to-Noise Ratio (SNR)
- Active noise countermeasures
All features are validated, and performance tested to pass 10V conducted immunity tests (level 3) according to IEC 6100-4-6.
Touch Safety Features
The Functional Safety Touch Library was developed by applying ISO 26262 ASIL-B guidelines with ASPICE level 1 assessment. The library code implements the safety features outlined in the FMEDA and the MCU safety manual. Safety features include:
- Touch built-in self-test
- Logical program flow check
- Library state check
Functional Safety Touch Library Packages
We offer the Functional Safety Touch Library in three packages that are customized to support your project lifecycle. The Functional Safety Touch Library is currently available for the AVR® DA family of microcontrollers (MCUs) and dsPIC33C Core-Independent Touch Digital Signal Controllers (DSCs). The Functional Safety Touch Library Starter and Full/Advanced packages can be ordered from our online purchasing portal.
- dsPIC33C DSC Packages
- AVR® DA MCU Packages
We also offer support for your functional safety touch design if you are planning on using one of our other MCUs. Please contact us if you need assistance with getting started with your development.