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STM32U375CE Datasheet(PDF) 129 Page - STMicroelectronics

Part # STM32U375CE
Description  Ultra-low-power Arm® Cortex®-M33 32-bit MCUTrustZone®FPU, 144 DMIPS, 1 MB flash memory, 256 KB SRAM, SMPS
PDF  222 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32U375CE Datasheet(HTML) 129 Page - STMicroelectronics

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High-speed internal (HSI16) RC oscillator
Table 75. HSI16 oscillator characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fHSI16(1)
HSI16 frequency after factory calibration
VDD = 3.0 V, TJ = 30 °C
15.92
16
16.08
MHz
TJ = –10 °C to 100 °C, 1.58 ≤ VDD ≤ 3.6 V
15.84
-
16.16
TJ = –40 °C to 110 °C, 1.58 ≤ VDD ≤ 3.6 V
15.65
-
16.25
TRIM(2)
HSI16 user trimming step
-
18
29
40
kHz
DuCy(HSI16)(2) Duty cycle
-
45
-
55
%
tsu(HSI16)(2)
HSI16 oscillator startup time
-
-
2.5
3.6
μs
tstab(HSI16)(2)
HSI16 oscillator stabilization time
At 1 % of target frequency
-
4
6
IDD(HSI16)(2)
HSI16 oscillator power consumption
-
-
150
210
μA
1. Evaluated by characterization. Not tested in production. Does not take into account package and soldering effects.
2. Specified by design. Not tested in production.
Figure 34. HSI16 frequency versus temperature and VDD
15.65
15.85
15.92
15.91
15.87
15.8
16.25
16.16
16.08
16.11
16.15
16.17
15.65
15.7
15.75
15.8
15.85
15.9
15.95
16
16.05
16.1
16.15
16.2
16.25
-40
-20
0
20
40
60
80
100
Temperature (°C)
+/-1%
HSI16 min freq
HSI16 max freq
temp +/-1%
-2%
Multispeed internal (MSI) RC oscillator
Table 76. MSI oscillator characteristics
Evaluated by characterization and not tested in production, unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fMSI
MSI frequency
after factory
calibration
VDD = 3 V and TJ =
30 °C
MSI mode
MSI Range 0(1)
95.50
96.00
96.50
MHz
MSI Range 1
47.75
48.00
48.25
MSI Range 2
23.88
24.00
24.12
MSI Range 3
11.95
12.00
12.06
MSI Range 4(1)
23.88
24.00
24.12
MSI Range 5
11.95
12.00
12.06
MSI Range 6
5.97
6.00
6.03
MSI Range 7
2.98
3.00
3.02
STM32U375xx
Electrical characteristics
DS14861 - Rev 2
page 129/222



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