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STM32G031F6 Datasheet(PDF) 59 Page - STMicroelectronics

Part # STM32G031F6
Description  Arm® Cortex®-M0 32-bit MCU, up to 64 KB Flash, 8 KB RAM, 2x USART, timers, ADC, comm. I/Fs, 1.7-3.6V
PDF  117 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32G031F6 Datasheet(HTML) 59 Page - STMicroelectronics

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DS12992 Rev 2
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STM32G031x4/x6/x8
Electrical characteristics
92
5.3.7
External clock source characteristics
High-speed external user clock generated from an external source
In bypass mode the HSE oscillator is switched off and the input pin is a standard GPIO.
The external clock signal has to respect the I/O characteristics in Section 5.3.14. See
Figure 16 for recommended clock input waveform.
Figure 16. High-speed external clock source AC timing diagram
Low-speed external user clock generated from an external source
In bypass mode the LSE oscillator is switched off and the input pin is a standard GPIO.
The external clock signal has to respect the I/O characteristics in Section 5.3.14. See
Figure 17 for recommended clock input waveform.
Table 37. High-speed external user clock characteristics(1)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fHSE_ext User external clock source frequency
Voltage scaling
Range 1
-8
48
MHz
Voltage scaling
Range 2
-8
26
VHSEH
OSC_IN input pin high level voltage
-
0.7 VDDIO1
-VDDIO1
V
VHSEL
OSC_IN input pin low level voltage
-
VSS
-0.3 VDDIO1
tw(HSEH)
tw(HSEL)
OSC_IN high or low time
Voltage scaling
Range 1
7-
-
ns
Voltage scaling
Range 2
18
-
-
1. Guaranteed by design.
MS19214V2
VHSEH
tf(HSE)
90%
10%
THSE
t
tr(HSE)
VHSEL
tw(HSEH)
tw(HSEL)
Table 38. Low-speed external user clock characteristics(1)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fLSE_ext User external clock source frequency
-
-
32.768
1000
kHz



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