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STM32L021D4 bảng dữ liệu(PDF) 62 Page - STMicroelectronics

tên linh kiện STM32L021D4
Giải thích chi tiết về linh kiện  Access line ultra-low-power 32-bit MCU Arm®-based Cortex®-M0, 16KB Flash, 2KB SRAM, 512B EEPROM, ADC, AES
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Electrical characteristics
STM32L021x4
62/114
DocID027982 Rev 5
6.3.5
Wakeup time from low-power mode
The wakeup times given in the following table are measured with the MSI or HSI16 RC
oscillator. The clock source used to wake up the device depends on the current operating
mode:
•
Sleep mode: the clock source is the clock that was set before entering Sleep mode
•
Stop mode: the clock source is either the MSI oscillator in the range configured before
entering Stop mode, the HSI16 or HSI16/4.
•
Standby mode: the clock source is the MSI oscillator running at 2.1 MHz
All timings are derived from tests performed under ambient temperature and VDD supply
voltage conditions summarized in Table 17.
Table 32. Peripheral current consumption in Stop and Standby mode
Symbol
Peripheral
Typical consumption, TA = 25 °C
Unit
VDD=1.8 V
VDD=3.0 V
IDD(PVD / BOR)
-0.6
1
µA
IREFINT
-1.25
1.3
-
LSE Low drive
0.11
0.16
-
LPTIM1, Input 100 Hz
0.01
0.02
-
LPTIM1, Input 1 MHz
8
9
-
LPUART1
0.025
0.027
-RTC
0.1
0.19
Table 33. Low-power mode wakeup timings
Symbol
Parameter
Conditions
Typ
Max
Unit
tWUSLEEP
Wakeup from Sleep mode
fHCLK = 32 MHz
7
8
CPU
cycles
tWUSLEEP_LP
Wakeup from Low-power sleep mode,
fHCLK = 262 kHz
fHCLK = 262 kHz
Flash enabled
78
fHCLK = 262 kHz
Flash switched OFF
910



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