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STM32G070CB датащи(PDF) 52 Page - STMicroelectronics

номер детали STM32G070CB
подробное описание детали  Arm® Cortex®-M0 32-bit MCU, 128 KB Flash, 36 KB RAM, 4x USART, timers, ADC, comm. I/Fs, 2.0-3.6V
PDF  93 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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STM32G070CB датащи(HTML) 52 Page - STMicroelectronics

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Electrical characteristics
STM32G070CB/KB/RB
52/93
DS12766 Rev 2
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 11 for recommended clock input waveform.
Figure 11. High-speed external clock source AC timing diagram
Table 32. Regulator mode transition times(1)
Symbol
Parameter
Conditions
Typ
Max
Unit
tVOST
Transition times between regulator
Range 1 and Range 2(2)
HSISYS = HSI16
20
40
µs
1. Based on characterization results, not tested in production.
2. Time until VOSF flag is cleared in PWR_SR2.
Table 33. 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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