 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
STM32G0 датащи(PDF) 70 Page - STMicroelectronics |
|
|
|||||||||||||||||||||||||||||
STM32G0 датащи(HTML) 70 Page - STMicroelectronics |
|
|
70 / 135 page  Electrical characteristics STM32G071x8/xB 70/135 DS12232 Rev 4 Low-speed external user clock generated from an external source In bypass mode the LSE oscillator is switched off and the input pin is a standard GPIO. The external clock signal has to respect the I/O characteristics in Section 5.3.14. See Figure 17 for recommended clock input waveform. Figure 17. 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 48 MHz crystal/ceramic resonator oscillator. All the information given in this paragraph are based on design simulation results obtained with typical external components specified in Table 39. 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). Table 38. Low-speed external user clock characteristics(1) Symbol Parameter Conditions Min Typ Max Unit fLSE_ext User external clock source frequency - - 32.768 1000 kHz VLSEH OSC32_IN input pin high level voltage - 0.7 VDDIO1 -VDDIO1 V VLSEL OSC32_IN input pin low level voltage - VSS - 0.3 VDDIO1 tw(LSEH) tw(LSEL) OSC32_IN high or low time - 250 - - ns 1. Guaranteed by design. MS19215V2 VLSEH tf(LSE) 90% 10% TLSE t tr(LSE) VLSEL tw(LSEH) tw(LSEL) Table 39. HSE oscillator characteristics(1) Symbol Parameter Conditions(2) Min Typ Max Unit fOSC_IN Oscillator frequency - 4 8 48 MHz RF Feedback resistor - - 200 - kΩ |
|
ссылки URL |
| Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | Ссылка на техническое описание | обмен ссыками | поиск по производителю All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Russian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
