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STM32G0 Datasheet(PDF) 69 Page - STMicroelectronics

Part # STM32G0
Description  Arm® Cortex®-M0 32-bit MCU, up to 128 KB Flash, 36 KB RAM, 4x USART, timers, ADC, DAC, comm. I/Fs, 1.7-3.6V
PDF  135 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32G0 Datasheet(HTML) 69 Page - STMicroelectronics

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DS12232 Rev 4
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STM32G071x8/xB
Electrical characteristics
107
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
Table 36. Wakeup time using LPUART(1)
Symbol
Parameter
Conditions
Typ
Max
Unit
tWULPUART
Wakeup time needed to calculate the maximum
LPUART baud rate allowing to wakeup up from Stop
mode when LPUART clock source is HSI16
Stop mode 0
-
1.7
µs
Stop mode 1
-
8.5
1. Guaranteed by design.
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)



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