参数资料
型号: STM32F207IGT7TR
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 120 MHz, RISC MICROCONTROLLER, PQFP176
封装: 24 X 24 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, LQFP-176
文件页数: 162/163页
文件大小: 2275K
代理商: STM32F207IGT7TR
Electrical characteristics
STM32F205xx, STM32F207xx
Doc ID 15818 Rev 7
Figure 38.
I2C bus AC waveforms and measurement circuit
1.
Measurement points are done at CMOS levels: 0.3VDD and 0.7VDD.
Table 48.
SCL frequency (fPCLK1= 30 MHz.,VDD = 3.3 V)
(1)(2)
1.
RP = External pull-up resistance, fSCL = I
2C 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
0x8019
300
0x8021
200
0x8032
100
0x0096
50
0x012C
20
0x02EE
Ω
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