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
Conditions Consumption
TA 25°C TA 70°C TA 85°C TA 105°C Unit
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

 28.2 29.6 30.8 33.4 mA
Table 67-14. VDDCORE Power Consumption in Ultra-Low-Power Mode: AMP2
Mode Conditions Consumption (mA) Wake-up Time (µs)
TA 25°C TA 70°C TA 85°C TA 105°C
ULP1 Fast Wakeup Arm Core clock is disabled. MCK is 0. 0.3 1.4 2.4 4.6 15
ULP0 12 MHz Arm Core clock is disabled. MCK is 12 MHz. 3.2 4.2 5.3 7.7 13
ULP0 750 kHz Arm Core clock is disabled. MCK is 750 kHz. 1.6 2.6 3.7 6.1 205
ULP0 187 kHz Arm Core clock is disabled. MCK is 187.5 kHz. 1.5 2.5 3.6 6.0 820
ULP0 32 kHz Arm Core clock is disabled. MCK is 32 kHz. 0.3 1.5 2.6 5.0 4690
Table 67-15. Typical Power Consumption for Backup ModeMeasurements made when powered by VDDBU only.
VDDBU (V) Conditions Consumption (μA) Unit
TA = 25°C TA = 70°C TA = 85°C TA = 105°C
1.6 VDDBU Only 4.2 12.1 19.3 36.8 µA
1.7 4.2 12.1 19.3 36.9
1.8 4.3 12.1 19.4 36.9
1.9 4.3 12.1 19.4 36.9
2 4.3 12.1 19.4 37
2.1 4.3 12.2 19.4 37
2.2 4.3 12.2 19.5 37
2.3 4.4 12.2 19.5 37
2.4 4.4 12.2 19.5 37
2.5 4.4 12.3 19.5 37.1
2.6 4.4 12.3 19.6 37.1
2.7 4.4 12.3 19.6 37.1
2.8 4.4 12.3 19.6 37.2
2.9 4.5 12.4 19.6 37.2
3 4.5 12.4 19.7 37.3
3.1 4.5 12.5 19.8 37.7
3.2 4.6 12.8 20.3 38.3
3.3 4.9 13.4 20.9 38.9
3.4 5.5 14.1 21.6 39.7
3.5 6.2 14.9 22.4 40.5
3.6 7 15.7 23.3 41.4