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STM32F417IGT7 数据手册 - ST Microelectronics(意法半导体)
制造商:
ST Microelectronics(意法半导体)
分类:
微控制器
封装:
LQFP-176
描述:
STMICROELECTRONICS STM32F417IGT7 微控制器, 32位, 以太网MAC, 照相机接口, ARM 皮质-M4, 168 MHz, 1 MB, 192 KB, 176 引脚, LQFP
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3D模型
符号图
焊盘图
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产品图
页面导航:
引脚图在P43P44P45P46P47P48P49P50P51P52P53P54Hot
典型应用电路图在P105P106P139
封装尺寸在P167P168P169P170P171P172P173P174P175P176P177P178
型号编码规则在P188
技术参数、封装参数在P80P115
电气规格在P78P79P80P81P82P83P84P85P86P87P88P89
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STM32F417IGT7数据手册
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DocID022063 Rev 7 105/205
STM32F415xx, STM32F417xx Electrical characteristics
Note: For information on electing the crystal, refer to the application note AN2867 “Oscillator
design guide for ST microcontrollers” available from the ST website www.st.com.
Figure 32. Typical application with an 8 MHz crystal
1. R
EXT
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 33. 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).
Note: For information on electing the crystal, refer to the application note AN2867 “Oscillator
design guide for ST microcontrollers” available from the ST website www.st.com.
Table 33. LSE oscillator characteristics (f
LSE
= 32.768 kHz)
(1)
1. Guaranteed by design.
Symbol Parameter Conditions Min Typ Max Unit
f
OSC_IN
Oscillator frequency - - 32.768 - MHz
R
F
Feedback resistor - - 18.4 - M
I
DD
LSE current consumption - - - 1 µA
G
m
Oscillator transconductance
Startup
2.8 - -
µA/V
G
mcritmax
Maximum critical crystal G
m
- - 0.56
t
SU(LSE)
(2)
2. Guaranteed by characterization. t
SU(LSE)
is the startup time measured from the moment it is enabled (by
software) to a stabilized 32.768 kHz oscillation is reached. This value is measured for a standard crystal
resonator and it can vary significantly with the crystal manufacturer
startup time V
DD
is stabilized - 2 - s
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