57.7 MCU Backup Current Consumption

Table 57-9. MCU Backup Current Consumption DC Electrical Specifications
DC CHARACTERISTICS Standard Operating Conditions: VDDIO = VDDIN 2.5V to 3.6V (unless otherwise stated)

Operating temperature:

-40°C ≤ TA ≤ +85°C for Industrial

Param. No.SymbolCharacteristicsVDDIOMinMax.UnitsConditions
BPWR_1IDD_BACKUP (1,2)MCU IDD in Backup mode powered from VDDIO3.3V—14µANo RTT, RTC running on RCOSC32K

No backup RAM retained (SUPC_MR.BKUPRETON = 0)

BPWR_53.3V—15µARTT running on RTC 1KHz clock, RTC running on RCOSC32K

No backup RAM retained (SUPC_MR.BKUPRETON = 0)

BPWR_93.3V—38µANo RTT, RTC running on RCOSC32K

1 KB backup RAM retained (SUPC_MR.BKUPRETON = 1)

BPWR_133.3V—39µARTT running on RTC 1KHz clock, RTC running on RCOSC32K

1 KB backup RAM retained (SUPC_MR.BKUPRETON = 1)

Note:
  1. Typical values at 25°C only.
  2. Conditions:
    • Single supply mode
    • No peripheral modules are operating (i.e., all peripherals inactive)
    • MCK all peripherals clock masked except SUPC, RSTC, RTC, RTT, WDT, PMC, EFC, CORETEX FPU, and RSWDT
    • I/Os are inactive input mode with input trigger disabled
    • All clock generation sources disabled unless otherwise specified
    • BOD, WDT, and RSWD disabled

Operating Conditions

  • VDDIO = 3.3V
  • All I/O pins input, pull-down enabled and input trigger disabled
  • No backup RAM retained