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STM32U545NET3QTR Datasheet(PDF) 184 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) 184 Page - STMicroelectronics

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Electrical characteristics
STM32U545xx
184/283
DS14216 Rev 1
5.3.6
Wake-up time from low-power modes and voltage scaling
transition times
The wake-up times given in the table below are the latency between the event and the
execution of the first user instruction (FSTEN = 1 in PWR_CR3 if not mentioned).
The device goes in low-power mode after the WFE (wait for event) instruction.
Table 73. Low-power mode wake-up timings on LDO(1)
Mode
Parameter
Conditions
Typ
(3 V, 30 °C)
Max
(3 V)
Unit
twu(Sleep)
Wake-up time from
Sleep to Run mode
SLEEP_PD = 0
14
17
Nb of
CPU
cycles
SLEEP_PD = 1 with MSI = 24 MHz
8.1
8.8
µs
twu(Stop 0)
Wake-up time from
Stop 0 to Run mode
All SRAMs retained
Wake-up in FLASH,
range 4, FLASHFWU = 1
and SRAM4FWU = 1 in
PWR_CR2
MSI 24 MHz
2.35
2.5
Wake-up in FLASH,
range 4, FLASHFWU = 0
and SRAM4FWU = 0 in
PWR_CR2
MSI 24 MHz
11.0
12.0
HSI 16 MHz
11.0
12.0
MSI 1 MHz
37.0
39.0
Wake-up in SRAM2,
range 4, FLASHFWU = 0
and SRAM4FWU = 0 in
PWR_CR2
MSI 24 MHz
4.75
5.00
HSI 16 MHz
6.75
7.4
MSI 1 MHz
34.0
36.0
twu(Stop 1)
Wake-up time from
Stop 1 to Run mode
All SRAMs retained
Wake-up in FLASH,
FLASHFWU = 1 and
SRAM4FWU = 1 in
PWR_CR2
MSI 24 MHz
13.0
15.0
Wake-up in FLASH,
FLASHFWU = 0 and
SRAM4FWU = 0 in
PWR_CR2
MSI 24 MHz
22.0
24.0
HSI 16 MHz
21.5
24.0
MSI 1 MHz
48.0
51.0
Wake-up in SRAM2,
range 4, FLASHFWU = 0
and SRAM4FWU = 0 in
PWR_CR2
MSI 24 MHz
15.5
18.0
HSI 16 MHz
17.5
20.0
MSI 1 MHz
45.0
48.0



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