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STM32F407IG датащи(PDF) 144 Page - STMicroelectronics |
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STM32F407IG датащи(HTML) 144 Page - STMicroelectronics |
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144 / 167 page ![]() Electrical characteristics STM32F405xx, STM32F407xx 144/167 Doc ID 022152 Rev 2 5.3.26 Camera interface (DCMI) timing specifications 5.3.27 SD/SDIO MMC card host interface (SDIO) characteristics Unless otherwise specified, the parameters given in Table 84 are derived from tests performed under ambient temperature, fPCLKx frequency and VDD supply voltage conditions summarized in Table 11. Refer to Section 5.3.16: I/O port characteristics for more details on the input/output alternate function characteristics (D[7:0], CMD, CK). Figure 70. SDIO high-speed mode Table 82. Switching characteristics for NAND Flash write cycles(1) 1. CL = 30 pF. Symbol Parameter Min Max Unit tw(NWE) FSMC_NWE low width 4THCLK–1 4THCLK+ 3 ns tv(NWE-D) FSMC_NWE low to FSMC_D[15-0] valid - 0 ns th(NWE-D) FSMC_NWE high to FSMC_D[15-0] invalid 3THCLK –2 - ns td(D-NWE) FSMC_D[15-0] valid before FSMC_NWE high 5THCLK–3 - ns td(ALE-NWE) FSMC_ALE valid before FSMC_NWE low - 3THCLK ns th(NWE-ALE) FSMC_NWE high to FSMC_ALE invalid 3THCLK–2 - ns Table 83. DCMI characteristics Symbol Parameter Conditions Min Max Unit Frequency ratio DCMI_PIXCLK/ fHCLK (1) 1. Maximum value of DCMI_PIXCLK = 54 MHz. 0.4 tW(CKH) CK D, CMD (output) D, CMD (input) tC tW(CKL) tOV tOH tISU tIH tf tr ai14887 |
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