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STM32F413XG Datasheet, PDF (110/207 Pages) STMicroelectronics – ARM-Cortex-M4 32b MCU+FPU, 125 DMIPS, up to 1.5MB Flash, 320KB RAM, USB OTG FS, 1 ADC, 2 DACs, 2 DFSDMs
Electrical characteristics
STM32F413xG/H
Note:
Table 42. HSE 4-26 MHz oscillator characteristics(1)
Symbol
Parameter
Conditions
Min Typ Max Unit
fOSC_IN Oscillator frequency
4
-
26 MHz
RF
Feedback resistor
- 200 -
kΩ
IDD
HSE current consumption
ACCHSE(2) HSE accuracy
VDD=3.3 V,
ESR= 30 Ω,
- 450 -
CL=5 pF @25 MHz
µA
VDD=3.3 V,
ESR= 30 Ω,
- 530 -
CL=10 pF @25 MHz
-
-500 - 500 ppm
Gm_crit_max Maximum critical crystal gm
tSU(HSE)(3) Startup time
Startup
-
-
1 mA/V
VDD is stabilized
-
2
-
ms
1. Guaranteed by design.
2. This parameter depends on the crystal used in the application. The minimum and maximum values must
be respected to comply with USB standard specifications.
3.
otSsUc(iHllaSEtio) nis
the startup
is reached.
time
This
measured from the moment it is enabled (by software) to
value is measured for a standard crystal resonator and it
a stabilized 8 MHz
can vary significantly
with the crystal manufacturer
For CL1 and CL2, it is recommended to use high-quality external ceramic capacitors in the
5 pF to 25 pF range (Typ.), designed for high-frequency applications, and selected to match
the requirements of the crystal or resonator (see Figure 29). CL1 and CL2 are usually the
same size. The crystal manufacturer typically specifies a load capacitance which is the
series combination of CL1 and CL2. PCB and MCU pin capacitance must be included (10 pF
can be used as a rough estimate of the combined pin and board capacitance) when sizing
CL1 and CL2.
For information on selecting the crystal, refer to the application note AN2867 “Oscillator
design guide for ST microcontrollers” available from the ST website www.st.com.
Figure 29. Typical application with an 8 MHz crystal
5HVRQDWRUZLWK
LQWHJUDWHGFDSDFLWRUV
&/
&/
0+]
UHVRQDWRU
5(;7  
26&B,1
5)
26&B28 7
%LDV
FRQWUROOHG
JDLQ
I+6 (
670)
DL
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
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