upd720113 Renesas Electronics Corporation., upd720113 Datasheet - Page 27

• Manufacturer Part Number: upd720113
• Description: Usb 2.0 Hub Controller
• Manufacturer: Renesas Electronics Corporation.

V
IHZ
V
V
SS
(min)
IH
V
power OK
V
power-on
V
Hub port
Hub port
SS
IH
IL
(min)
V
BUS
V
D+
D−
or
IH
D−/D+
D+/D−
∆t1
Connected
Figure 2-19. Full-/high-speed Device Connect Detection
Disconnected
Figure 2-20. Power-on and Connection Events Timing
Device
Figure 2-18. Low-/full-speed Disconnect Detection
Device
Attatch detected
≥ 4.01 V
t
SIGATT
D+
Data Sheet S16618EJ3V0DS
t
DCNN
t
ATTDB
D−
t
2SUSP
t
DDIS
Detected
Connect
t
DRST
Disconnect
Detected
t
RSTRCY
USB system software
reads device speed
Reset recovery
time
µ
PD720113
27