STM32F100V4T7BTR(2010) 查看數據表（PDF） - STMicroelectronics

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STM32F100V4T7BTR
(Rev.:2010)

Low & medium-density value line, advanced ARM-based 32-bit MCU with 16 to 128 KB Flash, 12 timers, ADC, DAC & 8 comm interfaces

STMicroelectronics 

Electrical characteristics

STM32F100x4, STM32F100x6, STM32F100x8, STM32F100xB

Figure 27. I2C bus AC waveforms and measurement circuit(1)

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  KΩ   KΩ

Ω

Ω

34-&X

3$!

3#,

3$ !

TF3$!

3TART

3TARTREPEATED

TSU34!

3TART

TR3$!

TSU3$!

TH34!

TW3#,,

TH3$!

3TOP

TSU34/34!

3#,

TW3#,(

TR3#,

TF3#,

TSU34/

AID

1. Measurement points are done at CMOS levels: 0.3VDD and 0.7VDD.

Table 39.

SCL frequency (fPCLK1= 24 MHz, VDD = 3.3 V)(1)(2)

fSCL (kHz)

I2C_CCR value

RP = 4.7 k

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.

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Doc ID 16455 Rev 2

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