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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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STM32F446VC 데이터시트(PDF) 174 Page - STMicroelectronics |
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STM32F446VC 데이터시트(HTML) 174 Page - STMicroelectronics |
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174 / 201 page  Electrical characteristics STM32F446xC/E 174/201 DocID027107 Rev 5 6.3.29 RTC characteristics Table 106. Dynamic characteristics: eMMC characteristics VDD = 1.7 V to 1.9 V(1)(2) Symbol Parameter Conditions Min Typ Max Unit fPP Clock frequency in data transfer mode - 0 - 50 MHz - SDIO_CK/fPCLK2 frequency ratio - - - 8/3 - tW(CKL) Clock low time fpp =50MHz 9.5 10.5 - ns tW(CKH) Clock high time fpp =50MHz 8.5 9.5 - CMD, D inputs (referenced to CK) in eMMC mode tISU Input setup time HS fpp =50MHz 0.5 - - ns tIH Input hold time HS fpp =50MHz 7.5 - - CMD, D outputs (referenced to CK) in eMMC mode tOV Output valid time HS fpp =50MHz - 13.5 14.5 ns tOH Output hold time HS fpp =50MHz 12 - - 1. Guaranteed based on test during characterization. 2. VDD = 2.7 to 3.6 V. Table 107. RTC characteristics Symbol Parameter Conditions Min Max -fPCLK1/RTCCLK frequency ratio Any read/write operation from/to an RTC register 4- |
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