46.5 MCU Standby Power

Table 46-7. MCU Standby Current Consumption Electrical Specifications (1)
DC CHARACTERISTICS Standard Operating Conditions: VDD and VDDIO 2.7V to 5.5V (unless otherwise stated)

Operating temperature:

-40°C ≤ TA ≤ +85°C for Industrial

Param. No.SymbolCharacteristicsVDD = VDDIOTyp.Max.UnitsConditions
SPWR_1IDD_STANDBYMCU IDD in Standby mode XOSC32K running

RTC running at 1 kHz

5.0V25.1311.4µASRAM in back bias mode (PM.STDBYCFG.BBIASHS = 0x1), low-power regulator is used (PM.STDBYCFG.VREGSMODE = 0x2)
SPWR_33.3V23.4307.8µA
SPWR_5 5.0V70.7395.1µASRAM in back bias mode (PM.STDBYCFG.BBIASHS = 0x1), main regulator is used (PM.STDBYCFG.VREGSMODE = 0x1)
SPWR_73.3V67.1390.6µA
SPWR_9 5.0V28.7473.7µASRAM in no back bias mode (PM.STDBYCFG.BBIASHS = 0x0), low-power regulator used (PM.STDBYCFG.VREGSMODE = 0x2)
SPWR_113.3V27469.4µA
SPWR_13 5.0V74.2579.3µASRAM in no back bias mode (PM.STDBYCFG.BBIASHS = 0x0), main regulator is used (PM.STDBYCFG.VREGSMODE = 0x1)
SPWR_153.3V70.8572.1µA
SPWR_29MCU IDD in Standby mode XOSC32K stopped

RTC stopped

5.0V23.4309.8µASRAM in back bias mode (PM.STDBYCFG.BBIASHS = 0x1), low-power regulator is used (PM.STDBYCFG.VREGSMODE = 0x2)
SPWR_313.3V22.3306.1µA
SPWR_33 5.0V69.1393µASRAM in back bias mode (PM.STDBYCFG.BBIASHS = 0x1), main regulator is used (PM.STDBYCFG.VREGSMODE = 0x1)
SPWR_353.3V65.8388.9µA
SPWR_37 5.0V27472.6µASRAM in no back bias mode (PM.STDBYCFG.BBIASHS = 0x0), low-power regulator is used (PM.STDBYCFG.VREGSMODE = 0x2)
SPWR_393.3V25.9468.5µA
SPWR_41 5.0V72.7574µASRAM in no back bias mode (PM.STDBYCFG.BBIASHS = 0x0), main regulator is used (PM.STDBYCFG.VREGSMODE = 0x1)
SPWR_433.3V69.6570.6µA
Note:
  1. Conditions:
    • System is in Standby mode
    • No SleepWalking (except RTC when indicated)
    • Peripheral modules are inactive (except RTC when indicated)
    • All clocks have stopped (CPU, AHB, APB, Main, GCLK, except RTC running at 1 kHz from XOSC32K when indicated)
    • All clock generation sources disabled except XOSC32K running with external 32 kHz crystal when indicated
    • I/Os are inactive input mode with input trigger disabled
    • Disabled WDT (Watchdog Timer), RTC (Real-Time Clock), and CFD (Clock Failure Detection)
    • BODVDD disabled
    • RESET = VDDIO
Figure 46-4. Power Consumption at VDD = VDDIO = 3.3 / 5.0V Over Temperature in Standby Sleep Mode with RTC
Note: The values shown represent the average standby power consumption measured across several devices and temperatures. For worst-case (maximum) values, refer to Table 46-7.
Operating Conditions:
  • VDD = VDDIO = 3.3 / 5.0V
  • Refer to Note 1 mentioned in the preceding table MCU Standby Current Consumption Electrical Specifications