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STM32U545NET3QTR Datasheet(PDF) 216 Page - STMicroelectronics

Part # STM32U545NET3QTR
Description  Ultra-low-power Arm® Cortex®-M33 MCUTrustZone®FPU,240 DMIPS, 512 KB flash memory, 274 KB SRAM, crypto
PDF  283 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32U545NET3QTR Datasheet(HTML) 216 Page - STMicroelectronics

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Electrical characteristics
STM32U545xx
216/283
DS14216 Rev 1
Figure 36. Recommended NRST pin protection
1. The reset network protects the device against parasitic resets.
2. The user must ensure that the level on the NRST pin can go below the VIL(NRST) max level specified in the above table.
Otherwise the reset is not taken into account by the device.
3. The external capacitor on NRST must be placed as close as possible to the device.
5.3.16
Extended interrupt and event controller input (EXTI) characteristics
The pulse on the interrupt input must have a minimal length in order to guarantee that it is
detected by the event controller.
5.3.17
Analog switches booster
MS19878V3
RPU
VDD
Internal reset
External
reset circuit
(1)
NRST
(2)
Filter
0.1 μF
Table 101. EXTI input characteristics(1)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
PLEC
Pulse length to event controller
-
20
-
-
ns
1. Specified by design. Not tested in production.
Table 102. Analog switches booster characteristics(1)
Symbol
Parameter
Min
Typ
Max
Unit
VDD
Supply voltage
1.6
1.8
3.6
V
tSU(BOOST)
Booster startup time
-
-
50
µs
IDD(BOOST)
Booster consumption
-
-
125
µA
1. Specified by design. Not tested in production.



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