App note: Using the Microchip Ultra Low-power Wake-up module


An application note (PDF!) from Microchip on using the Ultra Low-power Wake-up module to reduce system current consumption:

This application note describes ways to reduce system current consumption with the use of the Ultra Low-power Wake-up (ULPWU) module. The PIC16F684 and PIC16F88X are examples of deviceswith this feature.
The primary use of this module is as an ULPWU timer, but its functionality can be expanded to function as a temperature sensor and/or a low-voltage detector. The main and expanded functions of this module are explained in this document.

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