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. Symbol Characteristics VDD = VDDIO Typ. Max. Units Conditions
SPWR_1 IDD_STANDBY MCU IDD in Standby mode XOSC32K running

RTC running at 1 kHz

5.0V 25.1 311.4 µA SRAM in Back Bias mode (PM.STDBYCFG.BBIASHS=0x1), Low-Power regulator used (PM.STDBYCFG.VREGSMODE=0x2)
SPWR_3 3.3V 23.4 307.8 µA
SPWR_5 5.0V 70.7 395.1 µA SRAM in Back Bias mode (PM.STDBYCFG.BBIASHS=0x1), Main Regulator used (PM.STDBYCFG.VREGSMODE=0x1)
SPWR_7 3.3V 67.1 390.6 µA
SPWR_9 5.0V 28.7 473.7 µA SRAM in No Back Bias mode (PM.STDBYCFG.BBIASHS=0x0), Low-Power regulator used (PM.STDBYCFG.VREGSMODE=0x2)
SPWR_11 3.3V 27 469.4 µA
SPWR_13 5.0V 74.2 579.3 µA SRAM in No Back Bias mode (PM.STDBYCFG.BBIASHS=0x0), Main Regulator used (PM.STDBYCFG.VREGSMODE=0x1)
SPWR_15 3.3V 70.8 572.1 µA
SPWR_29 MCU IDD in Standby mode XOSC32K stopped

RTC stopped

5.0V 23.4 309.8 µA SRAM in Back Bias mode (PM.STDBYCFG.BBIASHS=0x1), Low-Power regulator used (PM.STDBYCFG.VREGSMODE=0x2)
SPWR_31 3.3V 22.3 306.1 µA
SPWR_33 5.0V 69.1 393 µA SRAM in Back Bias mode (PM.STDBYCFG.BBIASHS=0x1), Main Regulator used (PM.STDBYCFG.VREGSMODE=0x1)
SPWR_35 3.3V 65.8 388.9 µA
SPWR_37 5.0V 27 472.6 µA SRAM in No Back Bias mode (PM.STDBYCFG.BBIASHS=0x0), Low-Power regulator used (PM.STDBYCFG.VREGSMODE=0x2)
SPWR_39 3.3V 25.9 468.5 µA
SPWR_41 5.0V 72.7 574 µA SRAM in No Back Bias mode (PM.STDBYCFG.BBIASHS=0x0), Main Regulator used (PM.STDBYCFG.VREGSMODE=0x1)
SPWR_43 3.3V 69.6 570.6 µA
Note:
  1. Conditions:
    • System in Standby mode
    • No SleepWalking (except RTC when indicated)
    • Peripheral modules are inactive. (except RTC when indicated)
    • All clocks 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
    • WDT, CFD Clock Fail Detect disabled
    • BODVDD disabled
    • RESET = VDDIO
Figure 46-4. Power Consumption at VDD=VDDIO=3.3 / 5.0V over Temperature in Standby Sleep Mode with RTC
Operating Conditions:
  • VDD = VDDIO = 3.3 / 5.0V
  • See the table MCU Standby Current Consumption Electrical Specifications, Note 1 above