For any application to begin proper operation, the appli-
cation must power-up properly. Many criteria must be
taken into account to ensure this. The PICmicro™
devices integrate several features to simplify the design
for the power-up sequence. These integrated features
also reduce the total system cost.
This application note describes the requirements for
the device to properly power-up, common pitfalls that
designers encounter, and methods to assist in solving
power-up problems. AN607
Power-up Trouble Shooting
capable of generating an internal reset signal.
Author: Mark Palmer Depending on the device family, different power-up
Microchip Technology Inc. sequences will occur after this POR signal.
Contributions: Richard Hull & Randy Yach
If the slope is less then 0.05 V/ms, the MCLR pin should
Microchip Technology Inc.
be held low, by external circuitry, until a valid oper……
