UPD720122GC-9EU-A Renesas Electronics America, UPD720122GC-9EU-A Datasheet - Page 70

• Manufacturer Part Number: UPD720122GC-9EU-A
• Manufacturer: Renesas Electronics America

Specifications of UPD720122GC-9EU-A

• Lead Free Status / RoHS Status: Supplier Unconfirmed

68
(1) Power-on and connection events
(2) USB signals
V
power OK
power-on
IH
Hub port
Hub port
V
(min)
Differential
BUS
V
D+
D−
data lines
or
IH
T
PERIOD
∆t1
≥ 4.01 V
Figure 2-9. USB Differential Data Jitter for Full-Speed
Figure 2-8. Power-on and Connection Event Timing
Attach detected
100 ms
T
SIGATT
N * T
Crossover
Consecutive
transitions
points
PERIOD
Data Sheet S16685EJ3V0DS
+ T
xDJ1
N * T
transitions
PERIOD
Paired
100 ms
T
ATTDB
+ T
∆t4
xDJ2
∆t5
10 ms
∆t6
USB system software
reads device speed
µ
PD720122
Reset recovery
time