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STM32G474PBY3TR データシート(PDF) 174 Page - STMicroelectronics |
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STM32G474PBY3TR データシート(HTML) 174 Page - STMicroelectronics |
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174 / 236 page ![]() Electrical characteristics STM32G474xB STM32G474xC STM32G474xE 174/236 DS12288 Rev 5 Figure 35. SPI timing diagram - slave mode and CPHA = 0 tv(SO) Data output valid time Slave mode 2.7 V < VDD < 3.6 V Voltage Range V1 -9 12 ns Slave mode 1.71 V < VDD < 3.6 V Voltage Range V1 -9 18 Slave mode 1.71 V < VDD < 3.6 V Voltage Range V2 -13 22 tv(MO) Master mode - 3.5 4.5 th(SO) Data output hold time Slave mode 1.71 V < VDD < 3.6 V 6 - - Slave mode Range V2 9 - - th(MO) Master mode 2 - - 1. Guaranteed by characterization results. 2. The maximum frequency in Slave transmitter mode is determined by the sum of tv(SO) and tsu(MI) which has to fit into SCK low or high-phase preceding the SCK sampling edge. This value can be achieved when the SPI communicates with a master having tsu(MI) = 0 while Duty(SCK) = 50%. Table 89. SPI characteristics(1) (continued) Symbol Parameter Conditions Min Typ Max(2) Unit MSv41658V1 NSS input CPHA=0 CPOL=0 CPHA=0 CPOL=1 MISO output MOSI input tsu(SI) th(SI) tw(SCKL) tw(SCKH) tc(SCK) tr(SCK) th(NSS) tdis(SO) tsu(NSS) ta(SO) tv(SO) Next bits IN Last bit OUT First bit IN First bit OUT Next bits OUT th(SO) tf(SCK) Last bit IN |
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