STM32L152RBH6TR(2013) 查看數據表（PDF） - STMicroelectronics

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STM32L152RBH6TR
(Rev.:2013)

Ultra-low-power 32-bit MCU ARM®-based Cortex®-M3, 128KB Flash, 16KB SRAM, 4KB EEPROM, LCD, USB, ADC, DAC

STMicroelectronics 

STM32L151x6/8/B, STM32L152x6/8/B

Electrical characteristics

Figure 15. High-speed external clock source AC timing diagram

VHSEH

VHSEL

90%

10%

tr(HSE)

tf(HSE)

THSE

tW(HSE)

tW(HSE) t

EXTER NAL

fHSE_ext

CLOCK SOURC E

OSC _IN

IL

STM32Lxx

ai18232

High-speed external clock generated from a crystal/ceramic resonator

The high-speed external (HSE) clock can be supplied with a 1 to 24 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 28. 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).

Doc ID 17659 Rev 8

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