| 전자부품 데이터시트 검색엔진 |
|
STM32U535NET3QTR 데이터시트(PDF) 185 Page - STMicroelectronics |
|
|
|||||||||||||||||||||||||||||
STM32U535NET3QTR 데이터시트(HTML) 185 Page - STMicroelectronics |
|
185 / 278 page ![]() DS14217 Rev 1 185/278 STM32U535xx Electrical characteristics 253 Figure 28. AC timing diagram for high-speed external clock source (analog mode) 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: I/O port characteristics. However, the recommended clock input waveform is shown in Figure 29 and Figure 30. Figure 29. AC timing diagram for low-speed external square clock source MSv71538V1 VHSE_ext VHSE_ext_PP t tHSE_ext = 1/fHSE_ext 90% 10% tf(HSE) tr(HSE) Table 77. Low-speed external user clock characteristics(1) Symbol Parameter Min Typ Max Unit fLSE_ext User external clock source frequency 5 32.768 40 kHz VLSE_ext_PP OSC32_IN peak-to-peak amplitude 0.3 - VSW(2) V VLSE_ext OSC32_IN input range 0 - VSW(2) tw(LSEH) tw(LSEL) OSC32_IN high or low time for square signal input 10 - - μs 1. Specified by design. Not tested in production. 2. VSW = VDD when VDD is above VBOR0, and VSW=VBAT when VDD is below VBOR0. MSv67851V3 VLSEH 70% 30% t VLSEL tw(LSEH) tw(LSEL) VLSE_ext tLSE = 1/fLSE_ext VLSE_ext_PP |
|
링크 URL |
| ALLDATASHEET 가 귀하에 도움이 되셨나요? [ DONATE ] |
Alldatasheet는? | 광고문의 | 운영자에게 연락하기 | 개인정보취급방침 | 링크 투 데이터시트 | 링크교환 | 제조사별 검색 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 |