STM32L151x6/8/B STM32L152x6/8/B
Electrical characteristics
6.3.4
Supply current characteristics
The current consumption is a function of several parameters and factors such as the
operating voltage, ambient 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 Dhrystone 2.1 code.
The current consumption values are derived from the tests performed under ambient
temperature TA=25°C and VDD supply voltage conditions summarized in Table 13: General
operating conditions, unless otherwise specified. The MCU is placed under the following
conditions:
The MCU is placed under the following conditions:
• VDD = 3.6 V
• 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 OSC_IN input follows the characteristics specified in
Table 26: High-speed external user clock characteristics.
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