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参数资料
| 型号： | STM32F103VDT7XXX |
| 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, 0.50 MM PITCH, ROHS COMPLIANT, LQFP-100 |
| 文件页数： | 74/122页 |
| 文件大小： | 1599K |
| 代理商： | STM32F103VDT7XXX |
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STM32F103xC, STM32F103xD, STM32F103xE
Electrical characteristics
Doc ID 14611 Rev 6
Figure 20.
Low-speed external clock source AC timing diagram
High-speed external clock generated from a crystal/ceramic resonator
The high-speed external (HSE) clock can be supplied with a 4 to 16 MHz 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
resonator manufacturer for more details on the resonator characteristics (frequency,
package, accuracy).
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
Table 23.
HSE 4-16 MHz oscillator characteristics(1)(2)
1.
Resonator characteristics given by the crystal/ceramic resonator manufacturer.
2.
Based on characterization results, not tested in production.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fOSC_IN
Oscillator frequency
4
8
16
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
ai14144b
OSC32_IN
EXTER NAL
STM32F103xx
CLOCK SOURC E
VLSEH
tf(LSE)
tW(LSE)
IL
90%
10%
TLSE
t
tr(LSE)
tW(LSE)
fLSE_ext
VLSEL
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相关代理商/技术参数 |
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| STM32F103VDY6TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:High-density performance line ARM-based 32-bit MCU with 256 to 512KB Flash, USB, CAN, 11 timers, 3 ADCs, 13 communication interfaces |
| STM32F103VDY6XXX | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:High-density performance line ARM-based 32-bit MCU with 256 to 512KB Flash, USB, CAN, 11 timers, 3 ADCs, 13 communication interfaces |
| STM32F103VDY7TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:High-density performance line ARM-based 32-bit MCU with 256 to 512KB Flash, USB, CAN, 11 timers, 3 ADCs, 13 communication interfaces |
| STM32F103VDY7XXX | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:High-density performance line ARM-based 32-bit MCU with 256 to 512KB Flash, USB, CAN, 11 timers, 3 ADCs, 13 communication interfaces |
| STM32F103VE | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:High-density performance line ARM-based 32-bit MCU with 256 to 512KB Flash, USB, CAN, 11 timers, 3 ADCs, 13 communication interfaces |
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