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| 型号： | STM32F103VBT6TR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, FLASH, 1.25 MHz, RISC MICROCONTROLLER, PQFP100 |
| 封装： | 14 X 14 MM, ROHS COMPLIANT, LQFP-100 |
| 文件页数： | 59/92页 |
| 文件大小： | 1212K |
| 代理商： | STM32F103VBT6TR |
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Electrical characteristics
STM32F103x8, STM32F103xB
Doc ID 13587 Rev 11
5.3.15
Communications interfaces
I
2C interface characteristics
Unless otherwise specified, the parameters given in Table 39 are derived from tests
performed under the ambient temperature, fPCLK1 frequency and VDD supply voltage
conditions summarized in Table 9.
The STM32F103xx performance line I
2C interface meets the requirements of the standard
I
2C communication protocol with the following restrictions: the I/O pins SDA and SCL are
mapped to are not “true” open-drain. When configured as open-drain, the PMOS connected
between the I/O pin and VDD is disabled, but is still present.
The I
2C characteristics are described in Table 39. Refer also to Section 5.3.12: I/O port
characteristics for more details on the input/output alternate function characteristics (SDA
and SCL).
Table 39.
I2C characteristics
Symbol
Parameter
Standard mode I2C(1)
1.
Guaranteed by design, not tested in production.
2.
fPCLK1 must be higher than 2 MHz to achieve the maximum standard mode I
2C frequency. It must be
higher than 4 MHz to achieve the maximum fast mode I2C frequency.
Unit
Min
Max
Min
Max
tw(SCLL)
SCL clock low time
4.7
1.3
s
tw(SCLH)
SCL clock high time
4.0
0.6
tsu(SDA)
SDA setup time
250
100
ns
th(SDA)
SDA data hold time
0(3)
3.
The maximum hold time of the Start condition has only to be met if the interface does not stretch the low
period of SCL signal.
0(4)
4.
The device must internally provide a hold time of at least 300ns for the SDA signal in order to bridge the
undefined region of the falling edge of SCL.
900(3)
tr(SDA)
tr(SCL)
SDA and SCL rise time
1000
20 + 0.1Cb
300
tf(SDA)
tf(SCL)
SDA and SCL fall time
300
th(STA)
Start condition hold time
4.0
0.6
s
tsu(STA)
Repeated Start condition
setup time
4.7
0.6
tsu(STO)
Stop condition setup time
4.0
0.6
s
tw(STO:STA)
Stop to Start condition time
(bus free)
4.7
1.3
s
Cb
Capacitive load for each bus
line
400
pF
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相关代理商/技术参数 |
参数描述 |
|---|---|
| STM32F103VBT6XXX | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Medium-density performance line ARM-based 32-bit MCU with 64 or 128 KB Flash, USB, CAN, 7 timers, 2 ADCs, 9 communication interfaces |
| STM32F103VBT7 | 功能描述:ARM微控制器 - MCU 32BIT Cortex M3 M/D Performance LINE RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT |
| STM32F103VBT7TR | 功能描述:ARM微控制器 - MCU 32-Bit ARM Cortex MED Density 128kb PL RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT |
| STM32F103VBT7XXX | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Medium-density performance line ARM-based 32-bit MCU with 64 or 128 KB Flash, USB, CAN, 7 timers, 2 ADCs, 9 communication interfaces |
| STM32F103VBU6TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Medium-density performance line ARM-based 32-bit MCU with 64 or 128 KB Flash, USB, CAN, 7 timers, 2 ADCs, 9 communication interfaces |
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