w w w . d i g i e m b e d d e d . c o m
8 3 3
T i m i n g
USB differential data timing
Figure 141: USB differential data
USB full speed load timing
Figure 142: USB full speed load
U1
10%
90%
90%
10%
U2
usb_dp
usb_dm
C
L
= 50pf
R
S
usb_dp
C
L
= 50pf
R
S
usb_dm
Full Speed Buffer
Rs - external resistor
