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STM32F446RC 数据表(PDF) 140 Page - STMicroelectronics |
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STM32F446RC 数据表(HTML) 140 Page - STMicroelectronics |
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140 / 202 page  Electrical characteristics STM32F446xC/E 140/202 DocID027107 Rev 6 Figure 44. ULPI timing diagram CAN (controller area network) interface Refer to Section 6.3.17: I/O port characteristics for more details on the input/output alternate function characteristics (CANx_TX and CANx_RX). tSTART_DEV Clock startup time after the de-assertion of SuspendM Peripheral - - 5.6 ms tSTART_HOST Host - - - tPREP PHY preparation time after the first transition of the input clock -- - µs 1. Guaranteed by design. Table 72. USB HS clock timing parameters(1) (continued) Symbol Parameter Min Typ Max Unit Table 73. Dynamic characteristics: USB ULPI(1) Symbol Parameter Conditions Min. Typ. Max. Unit tSC Control in (ULPI_DIR, ULPI_NXT) setup time - 1 - - ns tHC Control in (ULPI_DIR, ULPI_NXT) hold time - 1.5 - - tSD Data in setup time - 1.5 - - tHD Data in hold time - 1.5 - - tDC/tDD Data/control output delay 2.7 V < VDD < 3.6 V, CL = 20 pF -6 8.5 1.71 V < VDD < 3.6 V, CL = 15 pF -6 11.5 1. Guaranteed based on test during characterization. |
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