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STM32F030C8 数据表(PDF) 71 Page - STMicroelectronics |
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STM32F030C8 数据表(HTML) 71 Page - STMicroelectronics |
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71 / 88 page ![]() DocID024849 Rev 1 71/88 STM32F030x4 STM32F030x6 STM32F030x8 Electrical characteristics 73 Table 57. SPI characteristics Symbol Parameter Conditions Min Max Unit fSCK 1/tc(SCK) SPI clock frequency Master mode - 18 MHz Slave mode - 18 tr(SCK) tf(SCK) SPI clock rise and fall time Capacitive load: C = 15 pF - 6 ns tsu(NSS) (1) NSS setup time Slave mode 4Tpclk - ns th(NSS) (1) NSS hold time Slave mode 2Tpclk + 10 - tw(SCKH) (1) tw(SCKL) (1) SCK high and low time Master mode, fPCLK = 36 MHz, presc = 4 Tpclk/2 -2 Tpclk/2 + 1 tsu(MI) (1) tsu(SI) (1) Data input setup time Master mode 4 - Slave mode 5 - th(MI) (1) Data input hold time Master mode 4 - th(SI) (1) Slave mode 5 - ta(SO) (1)(2) Data output access time Slave mode, fPCLK = 20 MHz 0 3Tpclk tdis(SO) (1)(3) Data output disable time Slave mode 0 18 tv(SO) (1) Data output valid time Slave mode (after enable edge) - 22.5 tv(MO) (1) Data output valid time Master mode (after enable edge) - 6 th(SO) (1) Data output hold time Slave mode (after enable edge) 11.5 - th(MO) (1) Master mode (after enable edge) 2 - DuCy(SCK) SPI slave input clock duty cycle Slave mode 25 75 % 1. Data based on characterization results, not tested in production. 2. Min time is for the minimum time to drive the output and the max time is for the maximum time to validate the data. 3. Min time is for the minimum time to invalidate the output and the max time is for the maximum time to put the data in Hi-Z |
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