JAJSH22C March 2019 – September 2021 MSP430FR2475 , MSP430FR2476
PRODUCTION DATA
The MSP430 has one active mode and several software-selectable low-power modes of operation (see Table 9-1). An interrupt event can wake the MCU from low-power mode LPM0, LPM3 or LPM4, service the request, and restore the MCU back to the low-power mode on return from the interrupt program. Low-power modes LPM3.5 and LPM4.5 disable the core supply to minimize power consumption.
XT1CLK and VLOCLK can be active during LPM4 mode if requested by low-frequency peripherals, such as RTC and WDT.
MODE | AM | LPM0 | LPM3 | LPM4 | LPM3.5 | LPM4.5 | |
---|---|---|---|---|---|---|---|
ACTIVE MODE (FRAM ON) | CPU OFF | STANDBY | OFF | ONLY RTC | SHUTDOWN | ||
Maximum system clock | 16 MHz | 16 MHz | 40 kHz | 0 | 40 kHz | 0 | |
Power consumption at 25°C, 3 V | 135 µA/MHz | 40 µA/MHz | 1.48 µA with RTC counter only in LFXT | 0.74 µA without SVS | 0.66 µA with RTC counter only in LFXT | 41 nA without SVS | |
Wake-up time | N/A | Instant | 10 µs | 10 µs | 350 µs | 350 µs | |
Wake-up events | N/A | All | All | I/O | RTC or I/O | I/O | |
Power | Regulator | Full regulation | Full regulation | Partial power down | Partial power down | Partial power down | Power down |
SVS | On | On | Optional | Optional | Optional | Optional | |
Brownout | On | On | On | On | On | On | |
Clock(2) | MCLK | Active | Off | Off | Off | Off | Off |
SMCLK | Optional | Optional | Off | Off | Off | Off | |
FLL | Optional | Optional | Off | Off | Off | Off | |
DCO | Optional | Optional | Off | Off | Off | Off | |
MODCLK | Optional | Optional | Off | Off | Off | Off | |
REFO | Optional | Optional | Optional | Off | Off | Off | |
ACLK | Optional | Optional | Optional | Off | Off | Off | |
XT1CLK | Optional | Optional | Optional | Off | Optional | Off | |
VLOCLK | Optional | Optional | Optional | Off | Optional | Off | |
Core | CPU | On | Off | Off | Off | Off | Off |
FRAM | On | On | Off | Off | Off | Off | |
RAM | On | On | On | On | Off | Off | |
Backup memory(1) | On | On | On | On | On | Off | |
Peripherals | Timer0_A3 | Optional | Optional | Optional | Off | Off | Off |
Timer1_A3 | Optional | Optional | Optional | Off | Off | Off | |
Timer2_A3 | Optional | Optional | Optional | Off | Off | Off | |
Timer3_A3 | Optional | Optional | Optional | Off | Off | Off | |
Timer0_B7 | Optional | Optional | Optional | Off | Off | Off | |
WDT | Optional | Optional | Optional | Off | Off | Off | |
eUSCI_A0 | Optional | Optional | Optional | Off | Off | Off | |
eUSCI_A1 | Optional | Optional | Optional | Off | Off | Off | |
eUSCI_B0 | Optional | Optional | Optional | Off | Off | Off | |
eUSCI_B1 | Optional | Optional | Optional | Off | Off | Off | |
CRC | Optional | Optional | Off | Off | Off | Off | |
ADC | Optional | Optional | Optional | Off | Off | Off | |
RTC | Optional | Optional | Optional | Off | Optional | Off | |
I/O | GPIO | On | Optional | State held | State held | State held | State held |