Low Power Mode Support - STMicroelectronics SPC572L series Reference Manual

Power management
Low Voltage
Power / Ground network
pin101/81
pin 52/42
pin101/81
pin 52/42
pin101/81
pin 52/42
pin101/81
pin 52/42
pin19/15
pin20/16
pin20/16
VDD_HV_IO_MAIN redundancy ensures that single pin failure does not prevent device
function, although full specification may not be guaranteed.
VDD_HV_PMC redundancy ensures that single pin failure does not prevent device function,
although full specification may not be guaranteed.
VDD_LV is redundant, ensuring that single pin failure does not prevent the device from
functioning correctly.
The device remains functional when more than four supply pins are available for the same
supply, although it may not satisfy all electrical specifications, including EMC performance.
This requirement is not applicable to: SAR, S/D, Ethernet, oscillator, JTAG.
9.2

Low power mode support

The SPC572Lx microcontroller supports low power modes.
Dedicated logic prevents uncontrolled activation of low-power mode. This is implemented
using protected sequence from the Mode Entry control module MC_ME.
Any register associated with low power entry is triple-voted.
222/2058
Figure 36. Device low voltage power-ground network
VDD_LV_CORE
VSS_LV
BALLAST
BALLAST
DocID027809 Rev 4
VDD_LV_PLL0
VDD_LV_FLA
VSS_LV_PLL0 VSS_LV_FLA
FLASH
PLL0
RM0400
pin 52/42
pin101/81
pin 52/42
pin101/81
pin 52/42
pin101/81
pin 41/51
BALLAST