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IO13PDB0V0 bảng dữ liệu(PDF) 100 Page - Microsemi Corporation |
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IO13PDB0V0 bảng dữ liệu(HTML) 100 Page - Microsemi Corporation |
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100 / 197 page ![]() SmartFusion DC and Switching Characteristics 2- 88 R e v i sio n 1 2 Serial Peripheral Interface (SPI) Characteristics This section describes the DC and switching of the SPI interface. Unless otherwise noted, all output characteristics given for a 35 pF load on the pins and all sequential timing characteristics are related to SPI_x_CLK. For timing parameter definitions, refer to Figure 2-47 on page 2-89. Table 2-100 • SPI Characteristics Commercial Case Conditions: TJ = 85ºC, VDD = 1.425 V, –1 Speed Grade Symbol Description and Condition A2F060 A2F200 A2F500 Unit sp1 SPI_x_CLK minimum period SPI_x_CLK = PCLK/2 20 NA 20 ns SPI_x_CLK = PCLK/4 40 40 40 ns SPI_x_CLK = PCLK/8 80 80 80 ns SPI_x_CLK = PCLK/16 0.16 0.16 0.16 µs SPI_x_CLK = PCLK/32 0.32 0.32 0.32 µs SPI_x_CLK = PCLK/64 0.64 0.64 0.64 µs SPI_x_CLK = PCLK/128 1.28 1.28 1.28 µs SPI_x_CLK = PCLK/256 2.56 2.56 2.56 µs sp2 SPI_x_CLK minimum pulse width high SPI_x_CLK = PCLK/2 10 NA 10 ns SPI_x_CLK = PCLK/4 20 20 20 ns SPI_x_CLK = PCLK/8 40 40 40 ns SPI_x_CLK = PCLK/16 0.08 0.08 0.08 µs SPI_x_CLK = PCLK/32 0.16 0.16 0.16 µs SPI_x_CLK = PCLK/64 0.32 0.32 0.32 µs SPI_x_CLK = PCLK/128 0.64 0.64 0.64 µs SPI_x_CLK = PCLK/256 1.28 1.28 1.28 us sp3 SPI_x_CLK minimum pulse width low SPI_x_CLK = PCLK/2 10 NA 10 ns SPI_x_CLK = PCLK/4 20 20 20 ns SPI_x_CLK = PCLK/8 40 40 40 ns SPI_x_CLK = PCLK/16 0.08 0.08 0.08 µs SPI_x_CLK = PCLK/32 0.16 0.16 0.16 µs SPI_x_CLK = PCLK/64 0.32 0.32 0.32 µs SPI_x_CLK = PCLK/128 0.64 0.64 0.64 µs SPI_x_CLK = PCLK/256 1.28 1.28 1.28 µs sp4 SPI_x_CLK, SPI_x_DO, SPI_x_SS rise time (10%-90%) 1 4.7 4.7 4.7 ns sp5 SPI_x_CLK, SPI_x_DO, SPI_x_SS fall time (10%-90%) 1 3.4 3.4 3.4 ns Notes: 1. These values are provided for a load of 35 pF. For board design considerations and detailed output buffer resistances, use the corresponding IBIS models located on the Microsemi SoC Products Group website: http://www.microsemi.com/index.php?option=com_microsemi&Itemid=489&lang=en&view=salescontact. 2. For allowable pclk configurations, refer to the Serial Peripheral Interface Controller section in the SmartFusion Microcontroller Subsystem User’s Guide. |
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