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参数资料
| 型号： | STM32F105VCH7XXX |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, FLASH, 72 MHz, RISC MICROCONTROLLER, BGA100 |
| 封装： | ROHS COMPLIANT, LFBGA-100 |
| 文件页数： | 55/90页 |
| 文件大小： | 998K |
| 代理商： | STM32F105VCH7XXX |
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STM32F105xx, STM32F107xx
Electrical characteristics
5.3.15
Communications interfaces
I
2C interface characteristics
Unless otherwise specified, the parameters given in Table 40 are derived from tests
performed under the ambient temperature, fPCLK1 frequency and VDD supply voltage
conditions summarized in Table 9.
The STM32F105xx and STM32F107xx 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 40. 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 40.
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
μs
tw(STO:STA)
Stop to Start condition time
(bus free)
4.7
1.3
μs
Cb
Capacitive load for each bus
line
400
pF
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相关代理商/技术参数 |
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| STM32F105VCT6 | 功能描述:ARM微控制器 - MCU 32BIT Cortex 64/25 CONNECTIVITY LINE M3 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 |
| STM32F105VCT6TR | 功能描述:32位微控制器 - MCU Connective ARM 32Bit 256kB Flash USB OTG RoHS:否 制造商:Texas Instruments 核心:C28x 处理器系列:TMS320F28x 数据总线宽度:32 bit 最大时钟频率:90 MHz 程序存储器大小:64 KB 数据 RAM 大小:26 KB 片上 ADC:Yes 工作电源电压:2.97 V to 3.63 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:LQFP-80 安装风格:SMD/SMT |
| STM32F105VCT6V | 制造商:STMicroelectronics 功能描述:MCU 32BIT CORTEX-M3 72MHZ LQFP-100 制造商:STMicroelectronics 功能描述:MCU, 32BIT, CORTEX-M3, 72MHZ, LQFP-100, Controller Family/Series:STM32F, Core Si 制造商:STMicroelectronics 功能描述:MCU, 32BIT, CORTEX-M3, 72MHZ, LQFP-100, Controller Family/Series:STM32F, Core Size:32bit, No. of I/O's:80, Supply Voltage Min:2V, Supply Voltage Max:3.6V, Digital IC Case Style:LQFP, No. of Pins:100, Program Memory Size:256KB |
| STM32F105VCT6W | 制造商:STMicroelectronics 功能描述:MCU 32BIT CORTEX-M3 72MHZ LQFP-100 制造商:STMicroelectronics 功能描述:MCU, 32BIT, CORTEX-M3, 72MHZ, LQFP-100 制造商:STMicroelectronics 功能描述:MCU, 32BIT, CORTEX-M3, 72MHZ, LQFP-100, Controller Family/Series:STM32F, Core Si 制造商:STMicroelectronics 功能描述:MCU, 32BIT, CORTEX-M3, 72MHZ, LQFP-100, Controller Family/Series:STM32F, Core Size:32bit, No. of I/O's:80, Supply Voltage Min:2V, Supply Voltage Max:3.6V, Digital IC Case Style:LQFP, No. of Pins:100, Program Memory Size:256KB |
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