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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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STM32L452VCU6 Scheda tecnica(PDF) 179 Page - STMicroelectronics |
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STM32L452VCU6 Scheda tecnica(HTML) 179 Page - STMicroelectronics |
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179 / 210 page  DocID029968 Rev 3 179/210 STM32L452xx Electrical characteristics 186 Quad SPI characteristics Unless otherwise specified, the parameters given in Table 95 and Table 96 for Quad SPI are derived from tests performed under the ambient temperature, fAHB frequency and VDD supply voltage conditions summarized in Table 23: General operating conditions, with the following configuration: • Output speed is set to OSPEEDRy[1:0] = 11 • Capacitive load C = 15 or 20 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. Table 95. Quad SPI characteristics in SDR mode(1) Symbol Parameter Conditions Min Typ Max Unit FCK 1/t(CK) Quad SPI clock frequency 1.71 < VDD< 3.6 V, CLOAD = 20 pF Voltage Range 1 -- 40 MHz 1.71 < VDD< 3.6 V, CLOAD = 15 pF Voltage Range 1 -- 48 2.7 < VDD< 3.6 V, CLOAD = 15 pF Voltage Range 1 -- 60 1.71 < VDD < 3.6 V CLOAD = 20 pF Voltage Range 2 -- 26 tw(CKH) Quad SPI clock high and low time fAHBCLK= 48 MHz, presc=0 t(CK)/2-2 - t(CK)/2 ns tw(CKL) t(CK)/2 - t(CK)/2+2 ts(IN) Data input setup time Voltage Range 1 2 - - Voltage Range 2 3.5 - - th(IN) Data input hold time Voltage Range 1 5 - - Voltage Range 2 6.5 - - tv(OUT) Data output valid time Voltage Range 1 - 1 5 Voltage Range 2 - 3 5 th(OUT) Data output hold time Voltage Range 1 0 - - Voltage Range 2 0 - - 1. Guaranteed by characterization results. |
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