Supply Current Characteristics - STMicroelectronics STM32L151CB Manual

STM32L151x6/8/B, STM32L152x6/8/B
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
consumption measurement
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 T
operating
conditions:
The MCU is placed under the following conditions:
•
V
DD
•
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
f
HCLK
•
When the peripherals are enabled f
• 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
scheme.
=25°C and V
A DD
conditions, unless otherwise specified. The MCU is placed under the following
= 3.6 V
frequency and voltage range to provide the best CPU performance.
DocID17659 Rev 10
supply voltage conditions summarized in
= f
APB1 APB2
characteristics.
Electrical characteristics
Figure 14: Current
Table 13: General
= f
AHB
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