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STM32F101X6 数据表(PDF) 53 Page - STMicroelectronics

部件名 STM32F101X6
功能描述  Access line, advanced ARM-based 32-bit MCU with Flash memory, six 16-bit timers, ADC and seven communication interfaces
PDF  74 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STM32F101X6 数据表(HTML) 53 Page - STMicroelectronics

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STM32F101xx
Electrical characteristics
53/74
Table 38.
I2C characteristics
Symbol
Parameter
Standard mode I2C(1)
1.
Values based on standard I2C protocol requirement, not tested in production.
Fast mode I2C(1)(2)
2.
fPCLK1 must be higher than 2 MHz to achieve the maximum standard mode I
2C frequency. It must be
higher than 4 MHz to achieve the maximum fast mode I2C frequency.
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(3)
3.
The maximum hold time of the Start condition has only to be met if the interface does not stretch the low
period of SCL signal.
0(4)
4.
The device must internally provide a hold time of at least 300 ns for the SDA signal in order to bridge the
undefined region of the falling edge of SCL.
900(3)
tr(SDA)
tr(SCL)
SDA and SCL rise time
1000
20+0.1Cb
300
tf(SDA)
tf(SCL)
SDA and SCL fall time
300
20+0.1Cb
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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