参数资料
型号: STM32L152C8T6D
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 32 MHz, RISC MICROCONTROLLER, PQFP48
封装: 7 X 7 MM, 0.50 MM PITCH, ROHS COMPLIANT, LQFP-48
文件页数: 83/106页
文件大小: 1417K
代理商: STM32L152C8T6D
Electrical characteristics
STM32L151xx, STM32L152xx
Doc ID 17659 Rev 1
Figure 20.
I2C bus AC waveforms and measurement circuit
1.
Measurement points are done at CMOS levels: 0.3VDD and 0.7VDD.
Table 43.
SCL frequency (fPCLK1= 36 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 is
±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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