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STM32H750VB Datasheet(PDF) 119 Page - STMicroelectronics

Part # STM32H750VB
Description  32-bit Arm® Cortex®-M7 480MHz MCUs, 128 Kbyte Flash, 1 Mbyte RAM, 46 com. and analog interfaces, crypto
PDF  335 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32H750VB Datasheet(HTML) 119 Page - STMicroelectronics

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DS12556 Rev 5
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STM32H750VB STM32H750ZB STM32H750IB STM32H750XB
Electrical characteristics (rev Y)
311
Figure 16. Typical application with an 8 MHz crystal
1. REXT value depends on the crystal characteristics.
Low-speed external clock generated from a crystal/ceramic resonator
The low-speed external (LSE) clock can be supplied with a 32.768 kHz crystal/ceramic
resonator oscillator. All the information given in this paragraph are based on
characterization results obtained with typical external components specified in Table 43. In
the application, the resonator and the load capacitors have to be placed as close as
possible to the oscillator pins in order to minimize output distortion and startup stabilization
time. Refer to the crystal resonator manufacturer for more details on the resonator
characteristics (frequency, package, accuracy).
ai17530b
OSC_OU T
OSC_IN
fHSE
CL1
RF
STM32
8 MHz
resonator
Resonator with
integrated capacitors
Bias
controlled
gain
REXT(1)
CL2
Table 43. Low-speed external user clock characteristics(1)
Symbol
Parameter
Operating conditions(2)
Min
Typ
Max
Unit
F
Oscillator frequency
-
-
32.768
-
kHz
IDD
LSE current
consumption
LSEDRV[1:0] = 00,
Low drive capability
-290
-
nA
LSEDRV[1:0] = 01,
Medium Low drive capability
-390
-
LSEDRV[1:0] = 10,
Medium high drive capability
-550
-
LSEDRV[1:0] = 11,
High drive capability
-900
-
Gmcritmax
Maximum critical crystal
gm
LSEDRV[1:0] = 00,
Low drive capability
--
0.5
µA/V
LSEDRV[1:0] = 01,
Medium Low drive capability
-
-
0.75
LSEDRV[1:0] = 10,
Medium high drive capability
--
1.7
LSEDRV[1:0] = 11,
High drive capability
--
2.7
tSU(3)
Startup time
VDD is stabilized
-
2
-
s
1. Guaranteed by design.



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