STM32L152C6U6 STMicroelectronics, STM32L152C6U6 Datasheet - Page 13

• Manufacturer Part Number: STM32L152C6U6
• Description: ARM Microcontrollers - MCU 32-Bit ARM Cortex 32kb LP LCD MCU
• Manufacturer: STMicroelectronics

Specifications of STM32L152C6U6

• Product Category: ARM Microcontrollers - MCU
• Rohs: yes
• Core: ARM Cortex M3
• Data Bus Width: 32 bit

STM32L151x6/8/B, STM32L152x6/8/B
3.1
Low power modes
The ultra-low-power STM32L15xxx supports dynamic voltage scaling to optimize its power
consumption in run mode. The voltage from the internal low-drop regulator that supplies the
logic can be adjusted according to the system’s maximum operating frequency and the
external voltage supply:
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●
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Seven low power modes are provided to achieve the best compromise between low power
consumption, short startup time and available wakeup sources:
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●
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In range 1 (V
Table 17
In range 2 (full V
consumption)
In range 3 (full V
multispeed internal RC oscillator clock source). Refer to
Sleep mode
In Sleep mode, only the CPU is stopped. All peripherals continue to operate and can
wake up the CPU when an interrupt/event occurs.
Sleep mode power consumption: refer to
Low power run mode
This mode is achieved with the multispeed internal (MSI) RC oscillator set to the
minimum clock (65 kHz), execution from SRAM or Flash memory, and internal regulator
in low power mode to minimize the regulator's operating current. In the Low power run
mode, the clock frequency and the number of enabled peripherals are both limited.
Low power run mode consumption: refer to
Low power sleep mode
This mode is achieved by entering the Sleep mode with the internal voltage regulator in
Low power mode to minimize the regulator’s operating current. In the Low power sleep
mode, both the clock frequency and the number of enabled peripherals are limited; a
typical example would be to have a timer running at 32 kHz.
When wakeup is triggered by an event or an interrupt, the system reverts to the run
mode with the regulator on.
Low power sleep mode consumption: refer to
Stop mode with RTC
Stop mode achieves the lowest power consumption while retaining the RAM and
register contents and real time clock. All clocks in the V
PLL, MSI RC, HSI RC and HSE crystal oscillators are disabled. The LSE or LSI is still
running. The voltage regulator is in the low power mode.
The device can be woken up from Stop mode by any of the EXTI line, in 8 µs. The EXTI
line source can be one of the 16 external lines. It can be the PVD output, the
Comparator 1 event or Comparator 2 event (if internal reference voltage is on), it can be
the RTC alarm(s), the USB wakeup, the RTC tamper events, the RTC timestamp event
or the RTC wakeup.
Stop mode without RTC
Stop mode achieves the lowest power consumption while retaining the RAM and
register contents. All clocks are stopped, the PLL, MSI RC, HSI and LSI RC, LSE and
HSE crystal oscillators are disabled. The voltage regulator is in the low power mode.
The device can be woken up from Stop mode by any of the EXTI line, in 8 µs. The EXTI
line source can be one of the 16 external lines. It can be the PVD output, the
for consumption).
DD
range limited to 2.0-3.6 V), the CPU runs at up to 32 MHz (refer to
DD
DD
range), the CPU runs at up to 16 MHz (refer to
range), the CPU runs at up to 4 MHz (generated only with the
Doc ID 17659 Rev 8
Table
Table
Table
19.
20.
21.
CORE
Table 17
domain are stopped, the
Functional overview
for consumption.
Table 17
for
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