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| STM32F100VCT6 Datasheet, PDF (77/98 Pages) STMicroelectronics – High-density value line, advanced ARM-based 32-bit MCU with 256 to 512 KB Flash, 16 timers, ADC, DAC & 11 comm interfaces | |||
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STM32F100xC, STM32F100xD, STM32F100xE
Electrical characteristics
Figure 29. I2C bus AC waveforms and measurement circuit
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1. Measurement points are done at CMOS levels: 0.3VDD and 0.7VDD.
Table 49.
SCL frequency (fPCLK1= 24 MHz, VDD = 3.3 V)(1)(2)
fSCL (kHz)(3)
I2C_CCR value
RP = 4.7 kΩ
400
0x8011
300
0x8016
200
0x8021
100
0x0064
50
0x00C8
20
0x01F4
1. RP = External pull-up resistance, fSCL = I2C speed,
2. For speeds around 400 kHz, the tolerance on the achieved speed is of ±2%. For other speed ranges, the
tolerance on the achieved speed ±1%. These variations depend on the accuracy of the external
components used to design the application.
3. Guaranteed by design, not tested in production.
Doc ID 15081 Rev 7
77/98
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