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STM32F103R4T7TR 参数 Datasheet PDF下载

STM32F103R4T7TR图片预览
型号: STM32F103R4T7TR
PDF下载: 下载PDF文件 查看货源
内容描述: 基于ARM的低密度高性能线的32位MCU,具有16或32 KB闪存, USB , CAN ,6个定时器, 2的ADC ,6个通信接口 [Low-density performance line, ARM-based 32-bit MCU with 16 or 32 KB Flash, USB, CAN, 6 timers, 2 ADCs, 6 communication interfaces]
分类和应用: 闪存微控制器和处理器外围集成电路通信时钟
文件页数/大小: 80 页 / 1067 K
品牌: STMICROELECTRONICS [ ST ]
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Electrical characteristics  
STM32F103x4, STM32F103x6  
2
Figure 24. I C bus AC waveforms and measurement circuit  
V
V
DD  
DD  
STM32F103xx  
SDA  
4.7kΩ  
4.7kΩ  
100Ω  
100Ω  
2
I C bus  
SCL  
START REPEATED  
START  
START  
t
su(STA)  
SDA  
t
t
t
r(SDA)  
f(SDA)  
su(SDA)  
t
su(STA:STO)  
STOP  
t
t
t
w(SCKL)  
h(SDA)  
h(STA)  
SCL  
t
t
t
su(STO)  
r(SCK)  
t
f(SCK)  
w(SCKH)  
ai14149b  
Measurement points are done at CMOS levels: 0.3VDD and 0.7VDD  
.
1.  
(1)(2)  
Table 40. SCL frequency (f  
fSCL (kHz)  
= 36 MHz.,VDD = 3.3 V)  
PCLK1  
I2C_CCR value  
RP = 4.7 k  
400  
300  
200  
100  
50  
0x801E  
0x8028  
0x803C  
0x00B4  
0x0168  
0x0384  
20  
1. RP = External pull-up resistance, fSCL = I2C 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.  
58/80  
Doc ID 15060 Rev 3