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STM32G0C1NET7XTR 数据表(PDF) 123 Page - STMicroelectronics |
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STM32G0C1NET7XTR 数据表(HTML) 123 Page - STMicroelectronics |
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123 / 159 page  DS13564 Rev 4 123/159 STM32G0C1xC/xE Electrical characteristics 124 USB full speed (FS) characteristics The STM32G0C1xC/xE USB interface is fully compliant with the USB specification version 2.0 and Battery charging rev 1.2 (primary and secondary detection). tsu(NSS) NSS setup time Slave mode tker + 2 - - ns th(NSS) NSS hold time Slave mode 2 - - tw(CKH) CK high time Master mode 1 / fCK / 2 - 1 1 / fCK / 2 1 / fCK / 2 + 1 tw(CKL) CK low time tsu(RX) Data input setup time Master mode tker + 2 - - Slave mode 4 - - th(RX) Data input hold time Master mode 1 - - Slave mode 0.5 - - tv(TX) Data output valid time Master mode - 0.5 1 Slave mode - 10 19 th(TX) Data output hold time Master mode 0 - - Slave mode 7 - - Table 77. USART characteristics Symbol Parameter Conditions Min Typ Max Unit Table 78. USB FS electrical characteristics(1) 1. Guaranteed by design. Symbol Parameter Conditions Min(2) 2. All the voltages are measured from the local ground potential. Typ Max(2) Unit VDDIO2 USB full speed transceiver operating voltage -3.0(3) 3. The USB full speed transceiver functionality is ensured down to 2.7 V but not the full USB full speed electrical characteristics which are degraded in the 2.7-to-3.0 V VDD voltage range. -3.6 V RPD Pull down resistor on PA11, PA12 (USB_FS_DP/DM) VIN = VDD 14.25 - 24.8 kΩ RPU Pull Up Resistor on PA12 (USB_FS_DP) VIN = VSS, during idle 0.9 1.25 1.575 kΩ Pull Up Resistor on PA12 (USB_FS_DP) VIN = VSS during reception 1.425 2.25 3.09 kΩ VCRS Output signal crossover voltage - 1.3 - 2.0 V ZDRV Output driver impedance(4) 4. No external termination series resistors are required on DP (D+) and DM (D-) pins as the matching impedance is included in the embedded driver.. Driving high or low 28 36 44 Ω |
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