STM32F205VB STMicroelectronics, STM32F205VB Datasheet - Page 81
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STM32F205VB
Manufacturer Part Number
STM32F205VB
Description
High-performance ARM Cortex-M3 MCU with 128 Kbytes Flash, 120 MHz CPU, ART Accelerator
Manufacturer
STMicroelectronics
Datasheet
1.STM32F205VE.pdf
(170 pages)
Specifications of STM32F205VB
10/100 Ethernet Mac With Dedicated Dma
supports IEEE 1588v2 hardware, MII/RMII
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STM32F205xx, STM32F207xx
Figure 29. High-speed external clock source AC timing diagram
Figure 30. 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 26 MHz crystal/ceramic
resonator oscillator. All the information given in this paragraph are based on characterization
results obtained with typical external components specified in
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).
V LSEH
V LSEL
V HSEH
V HSEL
90%
10%
90%
10%
External
clock source
External
clock source
t r(HSE)
t r(LSE)
f HSE_ext
f LSE_ext
Doc ID 15818 Rev 8
T HSE
T LSE
OSC _IN
t f(HSE)
OSC32_IN
t f(LSE)
t W(HSE)
t W(LSE)
I L
I L
Table
STM32F
Electrical characteristics
STM32F
27. In the application,
t W(HSE)
t W(LSE)
ai17528
ai17529
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t
t