STM3220G-SK/IAR STMicroelectronics, STM3220G-SK/IAR Datasheet - Page 77

• Manufacturer Part Number: STM3220G-SK/IAR
• Description: DEV KIT STM32F207ZG KICKSTART
• Manufacturer: STMicroelectronics
• Series: IAR Kickstartr
• Type: MCUr

Specifications of STM3220G-SK/IAR

• Contents: Hardware, Software and Documentation
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: STM32F207
• Other names: 497-11404

STM32F205xx, STM32F207xx
Figure 28. High-speed external clock source AC timing diagram
Figure 29. 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 6
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
25. In the application,
t W(HSE)
t W(LSE)
ai17528
ai17529
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t
t