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STM32F103XC Datasheet(PDF) 97 Page - STMicroelectronics

Part # STM32F103XC
Description  High-density performance line Arm®-based 32-bit MCU with 256 to 512KB Flash, USB, CAN, 11 timers, 3 ADCs, 13 communication interfaces
PDF  143 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32F103XC Datasheet(HTML) 97 Page - STMicroelectronics

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DS5792 Rev 13
97/143
STM32F103xC, STM32F103xD, STM32F103xE
Electrical characteristics
135
Figure 48. I2C bus AC waveforms and measurement circuit
1. Measurement points are done at CMOS levels: 0.3VDD and 0.7VDD.
2. Rs: Series protection resistors.
3. Rp: Pull-up resistors.
4. VDD_I2C : I2C bus supply
Table 52. SCL frequency (fPCLK1= 36 MHz.,VDD_I2C = 3.3 V)(1)(2)
1. RP = External pull-up resistance, fSCL = I2C speed.
2. 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 kΩ
400
0x801E
300
0x8028
200
0x803C
100
0x00B4
50
0x0168
20
0x0384



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