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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) 193 Page - STMicroelectronics |
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STM32L433CB датащи(HTML) 193 Page - STMicroelectronics |
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193 / 227 page  DS11449 Rev 7 193/19 STM32L433xx Electrical characteristics 194 Figure 42. SD default mode USB characteristics The STM32L433xx USB interface is fully compliant with the USB specification version 2.0 and is USB-IF certified (for Full-speed device operation). CAN (controller area network) interface Refer to Section 6.3.14: I/O port characteristics for more details on the input/output alternate function characteristics (CAN_TX and CAN_RX). ai14888 CK D, CMD (output) tOVD tOHD Table 101. USB electrical characteristics(1) Symbol Parameter Conditions Min Typ Max Unit VDDUSB USB transceiver operating voltage 3.0(2) -3.6 V Tcrystal_less USB crystal less operation temperature -15 - 85 ° C tSTARTUP(3) USB transceiver startup time - - 1.0 µs RPUI Embedded USB_DP pull-up value during idle 900 1250 1600 Ω RPUR Embedded USB_DP pull-up value during reception 1400 2300 3200 ZDRV(3) Output driver impedance(4) Driving high and low 28 36 44 Ω 1. TA = -40 to 125 °C unless otherwise specified. 2. The STM32L433xx USB functionality is ensured down to 2.7 V but not the full USB electrical characteristics which are degraded in the 2.7-to-3.0 V voltage range. 3. Guaranteed by design. 4. 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. |
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