PIC24FV32KA304-I Datasheet, PDF (135/320 Pages) Microchip Technology – 20/28/44/48-Pin, General Purpose, 16-Bit Flash Microcontrollers with XLP Technology

PIC24FV32KA304 FAMILY
10.4 Voltage Regulator-Based
Power-Saving Features
PIC24FV32KA304 series devices have a voltage
regulator that has the ability to alter functionality to
provide power savings. The on board regulator is made
up of two basic modules: the High-Voltage Regulator
(HVREG) and the Low-Voltage Regulator (LVREG).
With the combination of HVREG and LVREG, the
following power modes are available:
10.4.1 RUN MODE
In Run mode, the main HVREG is providing a regulated
voltage with enough current to supply a device running
at full speed, and the device is not in Sleep or Deep
Sleep Mode. The LVREG may or may not be running,
but is unused.
10.4.2 FAST WAKE-UP SLEEP MODE
In Fast Wake-up Sleep mode, the device is in Sleep,
but the main HVREG is still providing the regulated
voltage at full supply current. This mode consumes the
most power in Sleep, but provides the fastest wake-up
from Sleep.
10.4.3 SLEEP (STANDBY) MODE
In Sleep mode, the device is in Sleep and the main
HVREG is providing a regulated voltage at a reduced
(standby) supply current. This mode provides for
limited functionality due to the reduced supply current.
It consumes less power than Fast Wake-up Sleep
mode, but requires a longer time to wake-up from
Sleep.
10.4.4 LOW-VOLTAGE SLEEP MODE
In Low-Voltage Sleep mode, the device is in Sleep and
all regulated voltage is provided solely by the LVREG.
Consequently, this mode provides the lowest Sleep
power consumption, but is also the most limited in
terms of how much functionality can be enabled while
in this mode. The low-voltage Sleep wake-up time is
longer than Sleep mode due to the extra time required
to raise the VCORE supply rail back to normal regulated
levels.
Note:
The PIC24F32KA30X family parts do
not have any internal voltage regulation,
and therefore do not support
Low-Voltage Sleep mode.
10.4.5 DEEP SLEEP MODE
In Deep Sleep mode, both the main HVREG and
LVREG are shut down, providing the lowest possible
device power consumption. However, this mode
provides no retention or functionality of the device and
has the longest wake-up time.
 2011 Microchip Technology Inc.
DS39995B-page 135