STM32L15XRC datasheet(60/136 Pages) STMICROELECTRONICS

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Electrical characteristics

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6.3.4

Supply current characteristics

The current consumption is a function of several parameters and factors such as the

operating voltage, temperature, I/O pin loading, device software configuration, operating

frequencies, I/O pin switching rate, program location in memory and executed binary code.

The current consumption is measured as described in Figure 14: Current consumption

measurement scheme.

All Run-mode current consumption measurements given in this section are performed with a

reduced code that gives a consumption equivalent to the Dhrystone 2.1 code, unless

otherwise specified. The current consumption values are derived from tests performed

under ambient temperature TA = 25 °C and VDD supply voltage conditions summarized in

Table 14: General operating conditions, unless otherwise specified.

The MCU is placed under the following conditions:

•

All I/O pins are configured in analog input mode

•

All peripherals are disabled except when explicitly mentioned.

•

The Flash memory access time, 64-bit access and prefetch is adjusted depending on

fHCLK frequency and voltage range to provide the best CPU performance.

•

When the peripherals are enabled fAPB1 = fAPB2 = fAHB.

•

When PLL is ON, the PLL inputs are equal to HSI = 16 MHz (if internal clock is used) or

HSE = 16 MHz (if HSE bypass mode is used).

•

The HSE user clock applied to OSCI_IN input follows the characteristic specified in

Table 27: High-speed external user clock characteristics.

•

For maximum current consumption VDD = VDDA = 3.6 V is applied to all supply pins.

•

For typical current consumption VDD = VDDA = 3.0 V is applied to all supply pins if not

specified otherwise.

5. To guarantee less than 1% VREF_OUT deviation.

STM32L15xRC Datasheet(PDF) 60 Page - STMicroelectronics