STM32F302VCY7 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
STM32F302VCY7
STMicroelectronics
STM32F302VCY7 Datasheet PDF : 144 Pages
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STM32F302xB STM32F302xC
Electrical characteristics
High-speed external clock generated from a crystal/ceramic resonator
The high-speed external (HSE) clock can be supplied with a 4 to 32 MHz crystal/ceramic
resonator oscillator. All the information given in this paragraph are based on design
simulation results obtained with typical external components specified in Table 42. 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).
Symbol
Table 42. HSE oscillator characteristics
Parameter
Conditions(1)
Min(2) Typ Max(2) Unit
fOSC_IN
RF
Oscillator frequency
Feedback resistor
-
-
During startup(3)
4
8
32 MHz
- 200
kΩ
-
-
8.5
VDD=3.3 V, Rm= 30Ω,
CL=10 pF@8 MHz
-
0.4
-
IDD HSE current consumption
VDD=3.3 V, Rm= 45Ω,
CL=10 pF@8 MHz
-
0.5
-
VDD=3.3 V, Rm= 30Ω,
CL=5 pF@32 MHz
-
0.8
-
mA
VDD=3.3 V, Rm= 30Ω,
CL=10 pF@32 MHz
-
1
-
VDD=3.3 V, Rm= 30Ω,
CL=20 pF@32 MHz
-
1.5
-
gm
Oscillator transconductance
tSU(HSE)(4) Startup time
Startup
VDD is stabilized
10
-
-
2
- mA/V
-
ms
1. Resonator characteristics given by the crystal/ceramic resonator manufacturer.
2. Guaranteed by design.
3. This consumption level occurs during the first 2/3 of the tSU(HSE) startup time.
4.
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.
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