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Safety and Monitoring

Integrated Analog Icon

16-bit PIC MCUs and dsPIC DSCs offer integrated security features to ease implementation of IEC 60730 compliance for Class B safety and UL. Some of these products also have enhanced robustness and noise immunity with 5V operation on some families and support for temperature up to 150C. Additional detailed Functional Safety information can be found on the 16-bit Functional Safety overview page.

 

16-bit Peripheral Integrated Analog Block Diagram
HLVD: High/Low-Voltage Detection
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The High/Low-Voltage Detection circuit (HLVD) can be programmed to generate an interrupt on crossing the range of the VDD level in the selected direction. When the HLVD module is enabled, a comparator uses an internally generated reference voltage as the set point. The set point is compared with the trip point which could be supplied from an external source. Learn more below:

Family Reference Manual Section (FRM):
Video:
This is a Core Independent Peripheral. To read more, click here.
WDT: Watchdog Timer
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The primary function of the Watchdog Timer (WDT) is to reset the microcontroller in the event of a software malfunction. It can also be used to wake the device from Sleep or Idle mode. The WDT offers a number of built-in capabilities that allow user applications to select the best balance of performance and low-power consumption. Learn how to implement the Microchip WDT in low-power designs below:

Family Reference Manual Section (FRM):
Application Note:
Video:
This is a Core Independent Peripheral. To read more, click here.
DMT: Deadman Timer
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The Deadman Timer (DMT) module is designed to enable users to monitor the health of their application software by requiring periodic timer interrupts within a user-specified timing window. The DMT module is a synchronous counter and when enabled, counts instruction fetches, and is able to cause a soft trap if the DMT counter is not cleared within a set number of instructions. Find out more about the DMT by reading the associated FRM below:

Family Reference Manual Section (FRM):
Video:
This is a Core Independent Peripheral. To read more, click here.
Clocking Systems
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GPIO: General Purpose Input Output
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Analog
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^This is a Core Independent Peripheral. To read more, click here.

Key Attributes

  • Increased noise immunity and robustness
  • More dynamic range and improved sensitivity
  • AEC-Q100 Grade 0 qualification
  • Simplifies IEC 60730 compliance for Class B Safety
  • Seamless integration between MPLAB® XC compilers and verification environment

 

Target Applications

16-bit Video Channel