67.4.2.6 Low-power Consumption Versus Modes

The low-power consumption values are measured under the following operating conditions:

  • Parts are from typical process
  • VDDIOPx = 3.3V
  • VDDSDMMC0 and VDDSDMMC1 = 1.8V to 3.3V (high frequency)
  • VDDCORE = 1.2V ±2%
  • VDDBU = 1.6V to 3.6V
  • TA = as specified in the tables below
  • There is no consumption on the device I/Os.
  • All peripheral clocks are disabled.
Figure 67-2. Measurement Schematics

In order to maximize performances, each Peripheral Clock has been timed to H32MX clock frequency. The peripheral frequency can be reduced with the help of a divider in PMC_PCR.

Table 67-13. Typical Power Consumption in Idle Mode: AMP2
ConditionsConsumption
TA 25°CTA 70°CTA 85°CTA 105°CUnit
PLL clock is 1000 MHz, Arm Core clock is 500 MHz, MCK is 166 MHz.

– Core clock is stopped

– Peripheral clocks, including the DDR Controller clock, can be enabled

– Mode is entered via Wait for Interrupt (WFI) instruction and PCK disabling

– Measure IDDCORE + IDDBU

– Peripheral clock disabled

28.229.630.833.4mA
Table 67-14. VDDCORE Power Consumption in Ultra-Low-Power Mode: AMP2
ModeConditionsConsumption (mA)Wake-up Time (µs)
TA 25°CTA 70°CTA 85°CTA 105°C
ULP1 Fast WakeupArm Core clock is disabled. MCK is 0.0.31.42.44.615
ULP0 12 MHzArm Core clock is disabled. MCK is 12 MHz.3.24.25.37.713
ULP0 750 kHzArm Core clock is disabled. MCK is 750 kHz.1.62.63.76.1205
ULP0 187 kHzArm Core clock is disabled. MCK is 187.5 kHz.1.52.53.66.0820
ULP0 32 kHzArm Core clock is disabled. MCK is 32 kHz.0.31.52.65.04690
Table 67-15. Typical Power Consumption for Backup ModeMeasurements made when powered by VDDBU only.
VDDBU (V)ConditionsConsumption (μA)Unit
TA = 25°CTA = 70°CTA = 85°CTA = 105°C
1.6VDDBU Only4.212.119.336.8µA
1.74.212.119.336.9
1.84.312.119.436.9
1.94.312.119.436.9
24.312.119.437
2.14.312.219.437
2.24.312.219.537
2.34.412.219.537
2.44.412.219.537
2.54.412.319.537.1
2.64.412.319.637.1
2.74.412.319.637.1
2.84.412.319.637.2
2.94.512.419.637.2
34.512.419.737.3
3.14.512.519.837.7
3.24.612.820.338.3
3.34.913.420.938.9
3.45.514.121.639.7
3.56.214.922.440.5
3.6715.723.341.4