NEC switch - Manual (Page 217)

CHAPTER 16 ELECTRICAL SPECIFICATIONS
User’s Manual U12978EJ3V0UD
217
Serial Transfer Timing
USB function:
USBDM and USBDP rise/fall time
USBDM, USBDP
t
R
0.1V
DD
0.9V DD
t F
Transmission differential signal jitter
Next bit
Bit following
the next bit
667 ns
1,333 ns
t
UDJ1
t
UDJ2
USBDM, USBDP
Differential output signal cross-over point, transmission EOP width, reception EOP width, and reception
USB reset width
t EOPT1 , t EOPRm ,
t URESm
USBDM, USBDP V CRS
m = 1, 2
3-wire serial I/O mode:
t KCYm
t KLm t
KHm
SCK10
0.8V DD
0.2V DD
t SIKm t KSIm
t KSOm
Input data
Output data
SI10
SO10
m = 1, 2