SLAZ281AA October 2012 – May 2021 MSP430F5419
SYS Module
Functional
Device hangs with slow Vcc rise time
If Vcc with a slow rise time is applied to the device, the BOR releases the device at approximately 1.8V. After device release, the CPU executes boot code from flash, but Vcc might not be in the specified voltage range (that is, it might be below 2.2 V). This can cause the device to hang.
- Hold reset low until the supply voltage applied to the device is in the valid range (2.2V to 3.6V).
- Apply an additional external reset after the supply voltage reaches the valid range.