AT43301-SU Atmel, AT43301-SU Datasheet - Page 19

• Manufacturer Part Number: AT43301-SU
• Description: IC USB HUB CTRLR 4PORT 24SOIC
• Manufacturer: Atmel

Specifications of AT43301-SU

• Controller Type: USB Hub
• Interface: Serial
• Voltage - Supply: 4.4 V ~ 5.25 V
• Current - Supply: 24mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 4-8.
EOP Delay:
T
EOP Skew:
T
Low-speed timings are determined in the same way for:
T
1137J–USB–01/06
EOPD
HESK
LEOPD
DOWNSTREAM
UPSTREAM
= T
= T
and T
END OF
CABLE
EOP +
EOP
PORT
V
V
LHESK
- T
SS
SS
-T
Hub EOP Delay and EOP Skew
HDDX
EOP-
A. DOWNSTREAM EOP DELAY WITH CABLE
50% POINT OF
INITIAL SWING
T
EOP-
DOWNSTREAM
PORT OR END
C. UPSTREAM EOP DELAY WITH OR WITHOUT CABLE
UPSTREAM
OF CABLE
T
EOP+
PORT
V
V
SS
SS
CROSSOVER
EXTENDED
POINT
DOWNSTREAM
T
B. DOWNSTREAM EOP DELAY WITHOUT CABLE
EOP-
UPSTREAM
PORT
PORT
V
T
V
EOP+
SS
SS
CROSSOVER
EXTENDED
POINT
CROSSOVER
EXTENDED
POINT
T
EOP-
T
EOP+
CROSSOVER
EXTENDED
AT43301
POINT
CROSSOVER
EXTENDED
POINT
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