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STM32L412R8U3PTR 数据表(PDF) 29 Page - STMicroelectronics

部件名 STM32L412R8U3PTR
功能描述  Ultra-low-power Arm® Cortex®-M4 32-bit MCUFPU, 100DMIPS, up to 128KB Flash, 40KB SRAM, analog, ext. SMPS
PDF  192 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STM32L412R8U3PTR 数据表(HTML) 29 Page - STMicroelectronics

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DS12469 Rev 4
29/192
STM32L412xx
Functional overview
49
Low-power UART
(LPUART)
O
OOO
O(6) O(6) O(6) O(6)
-
--
--
I2Cx (x=1,2)
O
O
O
O
O(7) O(7)
-
--
--
--
I2C3
O
OOO
O(7) O(7) O(7) O(7)
-
--
--
SPIx (x=1,2)
O
O
O
O
-
--
--
--
--
ADCx (x=1,2)
O
O
O
O
-
--
--
--
--
OPAMPx (x=1)
O
O
O
O
O
--
--
--
--
COMP1
O
OOO
O
OO
O-
--
--
Temperature sensor
O
O
O
O
-
--
--
--
--
Timers (TIMx)
O
O
O
O
-
--
--
--
--
Low-power timer 1
(LPTIM1)
O
OOO
O
OO
O-
--
--
Low-power timer 2
(LPTIM2)
O
OOO
O
OO
O-
--
--
Independent
watchdog (IWDG)
O
OOO
O
OO
OO
O-
--
Window watchdog
(WWDG)
O
OOO
-
--
--
--
--
SysTick timer
O
O
O
O
-
--
--
--
--
Touch sensing
controller (TSC)
O
OOO
-
--
--
--
--
Random number
generator (RNG)
O(8)
O(8)
--
-
--
--
--
--
CRC calculation unit
O
O
O
O
-
--
--
--
--
GPIOs
O
OOO
O
OO
O
(9)
4
pins
(10)
(11)
4
pins
(10)
-
1. Legend: Y = Yes (Enable). O = Optional (Disable by default. Can be enabled by software). - = Not available.
2. The Flash can be configured in power-down mode. By default, it is not in power-down mode.
3. The SRAM clock can be gated on or off.
4. SRAM2 content is preserved when the bit RRS is set in PWR_CR3 register.
5. Some peripherals with wakeup from Stop capability can request HSI16 to be enabled. In this case, HSI16 is woken up by
the peripheral, and only feeds the peripheral which requested it. HSI16 is automatically put off when the peripheral does not
need it anymore.
6. LPUART reception is functional in Stop mode, and generates a wakeup interrupt on Start, address match or received frame
event.
Table 5. Functionalities depending on the working mode(1) (continued)
Peripheral
Run
Sleep
Low-
power
run
Low-
power
sleep
Stop 0/1
Stop 2
Standby Shutdown
VBAT
-
-
-
-



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