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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32L433CB датащи(PDF) 182 Page - STMicroelectronics |
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STM32L433CB датащи(HTML) 182 Page - STMicroelectronics |
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182 / 225 page  Electrical characteristics STM32L433xx 182/225 DS11449 Rev 5 SPI characteristics Unless otherwise specified, the parameters given in Table 95 for SPI are derived from tests performed under the ambient temperature, fPCLKx frequency and supply voltage conditions summarized in Table 22: General operating conditions. • Output speed is set to OSPEEDRy[1:0] = 11 • Capacitive load C = 30 pF • Measurement points are done at CMOS levels: 0.5 ₓ VDD Refer to Section 6.3.14: I/O port characteristics for more details on the input/output alternate function characteristics (NSS, SCK, MOSI, MISO for SPI). Table 95. SPI characteristics(1) Symbol Parameter Conditions Min Typ Max Unit fSCK 1/tc(SCK) SPI clock frequency Master mode receiver/full duplex 2.7 < VDD < 3.6 V Voltage Range 1 -- 40 MHz Master mode receiver/full duplex 1.71 < VDD < 3.6 V Voltage Range 1 16 Master mode transmitter 1.71 < VDD < 3.6 V Voltage Range 1 40 Slave mode receiver 1.71 < VDD < 3.6 V Voltage Range 1 40 Slave mode transmitter/full duplex 2.7 < VDD < 3.6 V Voltage Range 1 37(2) Slave mode transmitter/full duplex 1.71 < VDD < 3.6 V Voltage Range 1 20(2) Voltage Range 2 13 tsu(NSS) NSS setup time Slave mode, SPI prescaler = 2 4ₓTPCLK -- ns th(NSS) NSS hold time Slave mode, SPI prescaler = 2 2ₓTPCLK -- ns tw(SCKH) tw(SCKL) SCK high and low time Master mode TPCLK-2 TPCLK TPCLK+2 ns tsu(MI) Data input setup time Master mode 4 - - ns tsu(SI) Slave mode 1.5 - - th(MI) Data input hold time Master mode 6.5 - - ns th(SI) Slave mode 1.5 - - ta(SO) Data output access time Slave mode 9 - 36 ns tdis(SO) Data output disable time Slave mode 9 - 16 ns |
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