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STM32F101XB データシート(PDF) 63 Page - STMicroelectronics

部品番号 STM32F101XB
部品情報  Medium-density access line, ARM®-based 32-bit MCU with 64 or 128 KB Flash, 6 timers, ADC and 7 communication interfaces
PDF  101 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32F101XB データシート(HTML) 63 Page - STMicroelectronics

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DocID13586 Rev 17
63/101
STM32F101x8, STM32F101xB
Electrical characteristics
100
Table 38. I2C characteristics
Symbol
Parameter
Standard mode I2C(1)
1. Guaranteed by design, not tested in production.
Fast mode I2C(1)(2)
2. fPCLK1 must be at least 2 MHz to achieve standard mode I2C frequencies. It must be at least 4 MHz to
achieve fast mode I2C frequencies. It must be a multiple of 10 MHz to reach the 400 kHz maximum I2C
fast mode clock.
Unit
Min
Max
Min
Max
tw(SCLL)
SCL clock low time
4.7
-
1.3
-
µs
tw(SCLH) SCL clock high time
4.0
-
0.6
-
tsu(SDA)
SDA setup time
250
-
100
-
ns
th(SDA)
SDA data hold time
0
-
0
900(3)
3. The maximum Data hold time has only to be met if the interface does not stretch the low period of SCL
signal.
tr(SDA)
tr(SCL)
SDA and SCL rise time
-
1000
20+0.1Cb
300
tf(SDA)
tf(SCL)
SDA and SCL fall time
-
300
-
300
th(STA)
Start condition hold time
4.0
-
0.6
-
µs
tsu(STA)
Repeated Start condition setup
time
4.7
-
0.6
-
tsu(STO)
Stop condition setup time
4.0
-
0.6
-
µs
tw(STO:STA)
Stop to Start condition time (bus
free)
4.7
-
1.3
-
µs
Cb
Capacitive load for each bus line
-
400
-
400
pF



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