STM32F100RCT6BTR 查看數據表（PDF） - STMicroelectronics

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STM32F100RCT6BTR

High-density value line, advanced ARM-based 32-bit MCU with 256 to 512 KB Flash, 16 timers, ADC, DAC & 11 comm interfaces

STMicroelectronics 

STM32F100xC, STM32F100xD, STM32F100xE

Electrical characteristics

Figure 29. I2C bus AC waveforms and measurement circuit

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DLG

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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