SH7720 Datasheet, PDF (1429/1524 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

Section 38 Electrical Characteristics
EXTAL_USB (input)
t_FREQ
t_HIGH
t_LOW
90%
10%
t_R48
t_F48
Figure 38.60 USB Clock Timing
Table 38.18 USB Electrical Characteristics (Full-Speed)
Item
Symbol Min. Max. Unit Figure
Transition time (rise)*²
Transition time (fall)*²
t
4
20
ns
CL = 50 pF
R
t
4
20
ns
CL = 50 pF
F
Rise/fall time matching
t_RFM
85
111 %
(TR/TF)
Output signal crossover power supply voltage V
CRS
1.3
2.0
V

Notes: Measured with edge control C_EDGE = 47 pF and connection of direct resister Rs = 27 Ω.
1. Value when CL = 50 pF unless specified.
2. Value within 10% to 90% of the signal power supply voltage.
Table 38.19 USB Electrical Characteristics (Low-Speed)
Item
Symbol Min. Max. Unit Figure
Transition time (rise)*
t_R
75

ns
CL = 200 pF

300 ns
CL = 600 pF
Transition time (fall)*
t
F
75

ns
CL = 200 pF

300 ns
CL = 600 pF
Rise/fall time matching
t_RFM
80
125 %
(TR/TF)
Output signal crossover power supply voltage V
CRS
1.3
2.0
V

Notes: Measured with edge control C_EDGE = 47 pF and connection of direct resister Rs = 27 Ω.
* Value within 10% to 90% of the signal power supply voltage.
Rev. 3.00 Jan. 18, 2008 Page 1367 of 1458
REJ09B0033-0300