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STM32L431 Datasheet(PDF) 23 Page - STMicroelectronics

No. de pieza STM32L431
Descripción Electrónicos  RTC with HW calendar, alarms and calibration
PDF  200 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32L431 Datasheet(HTML) 23 Page - STMicroelectronics

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STM32L431xx
Functional overview
48
Table 4. Functionalities depending on the working mode(1)
Peripheral
Run
Sleep
Low-
power
run
Low-
power
sleep
Stop 0/1
Stop 2
Standby Shutdown
VBAT
-
-
-
-
CPU
Y
-
Y
-
-
--
--
--
--
Flash memory (up
to 256 KB)
O(2)
O(2)
O(2)
O(2)
-
--
--
--
--
SRAM1 (48 KB)
Y
Y(3)
YY(3)
Y
-Y
--
--
--
SRAM2 (16 KB)
Y
Y(3)
YY(3)
Y
-Y
-O(4)
--
--
Quad SPI
O
O
O
O
-
--
--
--
--
Backup Registers
Y
Y
Y
Y
Y
-Y
-Y
-Y
-Y
Brown-out reset
(BOR)
YY
YY
Y
YY
YY
Y-
--
Programmable
Voltage Detector
(PVD)
O
OOO
O
OO
O-
--
--
Peripheral Voltage
Monitor (PVMx;
x=1,3,4)
O
OOO
O
OO
O-
--
--
DMA
O
OOO
-
--
--
--
--
High Speed Internal
(HSI16)
O
OOO
(5)
-
(5)
--
--
--
Oscillator RC48
O
O
-
-
-
--
--
--
--
High Speed
External (HSE)
O
OOO
-
--
--
--
--
Low Speed Internal
(LSI)
O
OOO
O
-O
-O
--
--
Low Speed External
(LSE)
O
OOO
O
-O
-O
-O
-O
Multi-Speed Internal
(MSI)
O
OOO
-
--
--
--
--
Clock Security
System (CSS)
O
OOO
-
--
--
--
--
Clock Security
System on LSE
O
OOO
O
OO
OO
O-
--
RTC / Auto wakeup
O
O
O
O
O
OO
OO
OO
OO
Number of RTC
Tamper pins
33
33
3
O3
O3
O3
O3
USARTx (x=1,2,3)
O
O
O
O
O(6) O(6)
-
--
--
--



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