57.28 USB Electrical Specifications

Table 57-40. USB Electrical Specifications
AC CHARACTERISTICSStandard Operating Conditions: VDDIO = VDDIN 3.0V to 3.6V (unless otherwise stated)

Operating temperature:

-40°C ≤ TA ≤ +85°C for Industrial

Param. No.SymbolCharacteristics(1)Min.Typ.Max.UnitsConditions
USB_1VDDUSBUSB Transciever Voltage3—3.6VVoltage on VDDIO must be in this range for proper USB operation
VBUS Supply
USB_24USB_480MUTMI PLL (UPLL) clock frequency (2)—UPLL_1—MHzUTMI_CKTRIM.FREQ[0]=0 or 1

SPDCONF = 0

USB_25USB_48MUSB FS clock frequncy (2)—48—MHzSPDCONF=1
USB_26USBHOSTCKMinimum Host Clock for USB Operations12——MHz—
Note:
  1. USB: Supports High-Speed, Full-Speed, and Low-Speed communication. Compliant with USB 2.0 specification.
  2. USB: XOSC clock source. Required clock accuracy: ±0.05%, for all Speeds (12 MHz or 16 MHz).