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STM32F101XF датащи(PDF) 90 Page - STMicroelectronics |
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STM32F101XF датащи(HTML) 90 Page - STMicroelectronics |
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90 / 117 page ![]() Electrical characteristics STM32F101xF, STM32F101xG 90/117 DocID16553 Rev 5 Table 55. 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 = 30 pF - 8ns DuCy(SCK) SPI slave input clock duty cycle Slave mode 30 70 % tsu(NSS)(1) NSS setup time Slave mode 4tPCLK - ns th(NSS)(1) NSS hold time Slave mode 2tPCLK - tw(SCKH)(1) tw(SCKL)(1) SCK high and low time Master mode, fPCLK = 36 MHz, presc = 4 50 60 tsu(MI) (1) tsu(SI)(1) Data input setup time Master mode 5 - Slave mode 5 - th(MI) (1) Data input hold time Master mode 5 - th(SI)(1) Slave mode 4 - 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 2 10 tv(SO) (1)(1) Data output valid time Slave mode (after enable edge) - 25 tv(MO)(1)(1) Data output valid time Master mode (after enable edge) - 5 th(SO)(1) Data output hold time Slave mode (after enable edge) 15 - th(MO)(1) Master mode (after enable edge) 2 - 1. Guaranteed by characterization results. 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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