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STM32F413XG 数据表(PDF) 174 Page - STMicroelectronics |
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STM32F413XG 数据表(HTML) 174 Page - STMicroelectronics |
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174 / 207 page  Electrical characteristics STM32F413xG/H 174/207 DocID029162 Rev 2 6.3.28 RTC characteristics CMD, D inputs (referenced to CK) in SD default mode tISUD Input setup time SD fpp =25MHz 5- - ns tIHD Input hold time SD fpp =25MHz 1- - CMD, D outputs (referenced to CK) in SD default mode tOVD Output valid default time SD fpp =25 MHz -2 3 ns tOHD Output hold default time SD fpp =25 MHz 1- - 1. Guaranteed by characterization results. 2. VDD = 2.7 to 3.6 V. Table 99. SD / MMC characteristics(1)(2) (continued) Symbol Parameter Conditions Min Typ Max Unit Table 100. 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 3 - - ns tIH Input hold time HS fpp =50MHz 2.5 - - CMD, D outputs (referenced to CK) in eMMC mode tOV Output valid time HS fpp =50MHz - 15 15.5 ns tOH Output hold time HS fpp =50MHz 13 - - 1. Guaranteed by characterization results. 2. CLOAD = 20 pF. Table 101. 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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