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STM32U375CE Datasheet(PDF) 178 Page - STMicroelectronics |
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STM32U375CE Datasheet(HTML) 178 Page - STMicroelectronics |
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178 / 222 page ![]() Figure 64. SAI slave timing digram SAI_SCK_X (CKSTR = 1) SAI_FS_X (input) SAI_SD_X (transmit) tsu(FS) Slot n SAI_SD_X (receive) tw(CKH_X) th(FS) Slot n+2 tv(SD_ST) th(SD_ST) Slot n tsu(SD_SR) tw(CKL_X) th(SD_SR) 1/fSCK SAI_SCK_X (CKSTR = 0) 5.3.36 USB_FS characteristics Table 123. USB_FS characteristics Symbol Parameter Conditions Min Typ Max Unit VDDUSB USB transceiver operating supply voltage - 3.0(1) - 3.6 V RPUI Embedded USB_DP pullup value during idle - 900 - 1575 Ω RPUR Embedded USB_DP pullup value during reception - 1425 - 3090 ZDRV Output driver impedance(2) High and low driver 28 36 44 1. USB functionality is ensured down to 2.7 V, but some USB electrical characteristics are degraded in 2.7 to 3.0 V range. 2. No external termination series resistors are required on USB_DP (D+) and USB_DM (D-). The matching impedance is already included in the embedded driver. 5.3.37 JTAG/SWD interface characteristics Unless otherwise specified, the parameters given in Table 124 and Table 125 are derived from tests performed under the ambient temperature, fHCLKx frequency and VDD supply voltage conditions summarized in Table 27, with the following configuration: • Output speed set to OSPEEDRy[1:0] = 10 • Capacitive load CL = 30 pF • Measurement points done at 0.5 × VDD level Refer to Table 86. I/O static characteristics for more details on the input/output characteristics. STM32U375xx Electrical characteristics DS14861 - Rev 2 page 178/222 |
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