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STM32L152C6 Datasheet(PDF) 69 Page - STMicroelectronics |
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STM32L152C6 Datasheet(HTML) 69 Page - STMicroelectronics |
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69 / 131 page  DocID17659 Rev 9 69/131 STM32L151x6/8/B, STM32L152x6/8/B Electrical characteristics 105 Figure 15. High-speed external clock source AC timing diagram Table 26. High-speed external user clock characteristics(1) 1. Guaranteed by design, not tested in production. Symbol Parameter Conditions Min Typ Max Unit fHSE_ext User external clock source frequency CSS is on or PLL is used 1 832 MHz CSS is off, PLL not used 0 VHSEH OSC_IN input pin high level voltage - 0.7VDD -VDD V VHSEL OSC_IN input pin low level voltage VSS -0.3VDD tw(HSE) tw(HSE) OSC_IN high or low time 12 - - ns tr(HSE) tf(HSE) OSC_IN rise or fall time - - 20 Cin(HSE) OSC_IN input capacitance - - 2.6 - pF DuCy(HSE) Duty cycle - 45 - 55 % IL OSC_IN Input leakage current VSS ≤ VIN ≤ VD D -- ±1 µA ai18232 OSC _IN EXTER NAL STM32Lxx CLOCK SOURC E VHSEH tf(HSE) tW(HSE) IL 90% 10% THSE t tr(HSE) tW(HSE) fHSE_ext VHSEL |
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