Renesas R5S72621 ユーザーズマニュアル
Section 37 Electrical Characteristics
Page 2036 of 2108
R01UH0134EJ0400 Rev. 4.00
Sep
24,
2014
SH7262 Group, SH7264 Group
Table 37.19 USB Transceiver Timing (Full-Speed)
Item Symbol
Min.
Typ.
Max.
Unit
Figure
Rise time
t
FR
4
20 ns
Figure
37.67
Fall time
t
FF
4
20 ns
Rise/fall time lag
t
FR
/t
FF
90
111.11
%
DP, DM
t
FR
t
FF
10%
10%
90%
90%
Figure 37.67 DP and DM Output Timing (Full-Speed)
Measurement
circuit
USBDPV
CC
DP
DM
USBDPV
SS
CL = 50 pF
CL = 50 pF
The electric capacitance (CL) includes
the stray capacitance of connection
and the input capacitance of probe.
the stray capacitance of connection
and the input capacitance of probe.
Figure 37.68 Measurement Circuit (Full-Speed)
Table 37.20 USB Transceiver Timing (High-Speed)
Item Symbol
Min.
Typ.
Max.
Unit
Figure
Rise time
t
HSR
500
ps
Figure
37.69
Fall time
t
HSF
500
ps
Output driver resistance
Z
HSDRV
40.5
49.5