參數(shù)資料
型號: STM32F101C8T6
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 32-BIT, FLASH, 36 MHz, RISC MICROCONTROLLER, PQFP48
封裝: 7 X 7 MM, 0.50 MM PITCH, LQFP-48
文件頁數(shù): 50/72頁
文件大?。?/td> 996K
代理商: STM32F101C8T6
Electrical characteristics
STM32F101xx
Figure 22.
I2C bus AC waveforms and measurement circuit
1.
Measurement points are done at CMOS levels: 0.3VDD and 0.7VDD.
Table 39.
SCL frequency (fPCLK1= 36 MHz, VDD = 3.3 V)
(1)(2)(3)
1.
TBD = to be determined.
2.
RP = External pull-up resistance, fSCL = I
2C speed,
3.
For speeds around 200 kHz, the tolerance on the achieved speed is of
±5%. For other speed ranges, the
tolerance on the achieved speed
±2%. These variations depend on the accuracy of the external
components used to design the application.
fSCL
(kHz)
I2C_CCR value
RP = 4.7 k
400
TBD
300
TBD
200
TBD
100
TBD
50
TBD
20
TBD
ai14127b
START
SDA
100
4.7k
IC bus
4.7k
100
VDD
STM32F101
SDA
SCL
tf(SDA)
tr(SDA)
SCL
th(STA)
tw(SCKH)
tw(SCKL)
tsu(SDA)
tr(SCK)
tf(SCK)
th(SDA)
S TART REPEATED
START
tsu(STA)
tsu(STO)
S TOP
tsu(STA:STO)
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