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STM32L063C8 データシート(PDF) 98 Page - STMicroelectronics

部品番号 STM32L063C8
部品情報  Ultra-low-power platform
PDF  121 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32L063C8 データシート(HTML) 98 Page - STMicroelectronics

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Electrical characteristics
STM32L063x8
98/121
DocID025660 Rev 6
The analog spike filter is compliant with I2C timings requirements only for the following
voltage ranges:
Fast mode Plus: 2.7 V
VDD 3.6 V and voltage scaling Range 1
Fast mode:
–2 V
 VDD  3.6 V and voltage scaling Range 1 or Range 2.
–VDD < 2 V, voltage scaling Range 1 or Range 2, Cload < 200 pF.
In other ranges, the analog filter should be disabled. The digital filter can be used instead.
Note:
In Standard mode, no spike filter is required.
USART/LPUART characteristics
The parameters given in the following table are guaranteed by design.
Table 71. I2C analog filter characteristics(1)
1. Guaranteed by characterization results.
Symbol
Parameter
Conditions
Min
Max
Unit
tAF
Maximum pulse width of spikes that
are suppressed by the analog filter
Range 1
50(2)
2. Spikes with widths below tAF(min) are filtered.
100(3)
3. Spikes with widths above tAF(max) are not filtered
ns
Range 2
-
Range 3
-
Table 72. USART/LPUART characteristics
Symbol
Parameter
Conditions
Typ
Max
Unit
tWUUSART
Wakeup time needed to
calculate the maximum
USART/LPUART baudrate
allowing to wake up from
Stop mode
Stop mode with main regulator in
Run mode, Range 2 or 3
-8.7
µs
Stop mode with main regulator in
Run mode, Range 1
-8.1
Stop mode with main regulator in
low-power mode, Range 2 or 3
-12
Stop mode with main regulator in
low-power mode, Range 1
-11.4



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