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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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STM32F427NET6XXX Scheda tecnica(PDF) 145 Page - STMicroelectronics |
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STM32F427NET6XXX Scheda tecnica(HTML) 145 Page - STMicroelectronics |
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145 / 231 page  DocID024030 Rev 6 145/231 STM32F427xx STM32F429xx Electrical characteristics 192 SAI characteristics Unless otherwise specified, the parameters given in Table 64 for SAI are derived from tests performed under the ambient temperature, fPCLKx frequency and VDD supply voltage conditions summarized in Table 17, with the following configuration: • Output speed is set to OSPEEDRy[1:0] = 10 • Capacitive load C=30 pF • Measurement points are performed at CMOS levels: 0.5VDD Refer to Section 6.3.17: I/O port characteristics for more details on the input/output alternate function characteristics (SCK,SD,WS). Table 64. SAI characteristics(1) Symbol Parameter Conditions Min Max Unit fMCKL SAI Main clock output - 256 x 8K 256xFs(2) MHz FSCK SAI clock frequency Master data: 32 bits - 64xFs MHz Slave data: 32 bits - 64xFs DSCK SAI clock frequency duty cycle Slave receiver 30 70 % tv(FS) FS valid time Master mode 8 22 ns tsu(FS) FS setup time Slave mode 2 - th(FS) FS hold time Master mode 8 - Slave mode 0 - tsu(SD_MR) Data input setup time Master receiver 5 - tsu(SD_SR) Slave receiver 3 - th(SD_MR) Data input hold time Master receiver 0 - th(SD_SR) Slave receiver 0 - tv(SD_ST) th(SD_ST) Data output valid time Slave transmitter (after enable edge) -22 tv(SD_MT) Master transmitter (after enable edge) -20 th(SD_MT) Data output hold time Master transmitter (after enable edge) 8- 1. Guaranteed by characterization results. 2. 256xFs maximum corresponds to 45 MHz (APB2 xaximum frequency) |
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