Arria® V Device Datasheet

ID 683022
Date 5/23/2023
Document Table of Contents USB Timing Characteristics

PHYs that support LPM mode may not function properly with the USB controller due to a timing issue. It is recommended that designers use the MicroChip USB3300 PHY device that has been proven to be successful on the development board.

Table 55.  USB Timing Requirements for Arria® V Devices
Symbol Description Min Typ Max Unit
Tclk USB CLK clock period 16.67 ns
Td CLK to USB_STP/USB_DATA[7:0] output delay 4.4 11 ns
Tsu Setup time for USB_DIR/USB_NXT/USB_DATA[7:0] 2 ns
Th Hold time for USB_DIR/USB_NXT/USB_DATA[7:0] 1 ns
Figure 13. USB Timing Diagram

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