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参数资料
| 型号： | STM32F105VCT6XXX |
| 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, PQFP100 |
| 封装： | 14 X 14 MM, ROHS COMPLIANT, LQFP-100 |
| 文件页数： | 41/95页 |
| 文件大小： | 1007K |
| 代理商： | STM32F105VCT6XXX |
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Electrical characteristics
STM32F105xx, STM32F107xx
46/95
Doc ID 15274 Rev 4
For CL1 and CL2, it is recommended to use high-quality external ceramic capacitors in the
5 pF to 25 pF range (typ.), designed for high-frequency applications, and selected to match
the requirements of the crystal or resonator (see Figure 15). CL1 and CL2 are usually the
same size. The crystal manufacturer typically specifies a load capacitance which is the
series combination of CL1 and CL2. PCB and MCU pin capacitance must be included (10 pF
can be used as a rough estimate of the combined pin and board capacitance) when sizing
CL1 and CL2. Refer to the application note AN2867 “Oscillator design guide for ST
microcontrollers” available from the ST website www.st.com.
Figure 15.
Typical application with an 8 MHz crystal
1. REXT value depends on the crystal characteristics.
Low-speed external clock generated from a crystal/ceramic resonator
The low-speed external (LSE) clock can be supplied with a 32.768 kHz crystal/ceramic
resonator oscillator. All the information given in this paragraph are based on characterization
results obtained with typical external components specified in Table 23. In the application,
the resonator and the load capacitors have to be placed as close as possible to the oscillator
pins in order to minimize output distortion and startup stabilization time. Refer to the crystal
Table 22.
HSE 3-25 MHz oscillator characteristics(1) (2)
1. Resonator characteristics given by the crystal/ceramic resonator manufacturer.
2. Based on characterization, not tested in production.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fOSC_IN
Oscillator frequency
3
25
MHz
RF
Feedback resistor
200
k
C
Recommended load capacitance
versus equivalent serial
resistance of the crystal (RS)
(3)
3. The relatively low value of the RF resistor offers a good protection against issues resulting from use in a
humid environment, due to the induced leakage and the bias condition change. However, it is
recommended to take this point into account if the MCU is used in tough humidity conditions.
RS = 30
30
pF
i2
HSE driving current
VDD = 3.3 V, VIN =VSS
with 30 pF load
1mA
gm
Oscillator transconductance
Startup
25
mA/V
tSU(HSE
(4)
4. tSU(HSE) is the startup time measured from the moment it is enabled (by software) to a stabilized 8 MHz
oscillation is reached. This value is measured for a standard crystal resonator and it can vary significantly
with the crystal manufacturer
Startup time
VDD is stabilized
2
ms
ai14128b
OSC_OU T
OSC_IN
fHSE
CL1
RF
STM32F10xxx
8 MH z
resonator
Resonator with
integrated capacitors
Bias
controlled
gain
REXT(1)
CL2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| STM32F105VCT7 | 功能描述:ARM微控制器 - MCU 32-Bit Cortex 64Kb Connectivity 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 |
| STM32F107RB | 制造商:STMicroelectronics 功能描述: |
| STM32F107RBT6 | 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 |
| STM32F107RCT6 | 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 |
| STM32F107RCT6TR | 功能描述:ARM微控制器 - MCU 32BIT CORTEX M3 256K Flash 6KB RAM 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 |
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