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PRELIMINARY
Document #: 38-08037 Rev. *D Page 21 of 23
15.0 Electrical Characteristics
15.1 Absolute Maximum Ratings
Storage Temperature ................................–65°C to +150 °C
Ambient Temperature with Power Applied........0°C to +70°C
Supply Voltage to Ground Potential .............. –0.5V to +4.0V
DC Voltage Applied to Outputs in High Z State
...............................................................–0.5V to V
CC
+ 0.5V
Power Dissipation (4 HS ports)...................................TBD W
Static Discharge Voltage...........................................> 2000V
Max. Output Sink Current per I/O ................................10 mA
15.2 Operating Conditions
T
A
(Ambient Temperature Under Bias)............. 0°C to +70°C
Supply Voltage ...........................................+3.15V to +3.45V
Ground Voltage ................................................................. 0V
FOSC (Oscillator or Crystal Frequency)......24 MHz ± 0.05%
parallel resonant,
fundamental mode,
12-pF load capacitance,
0.5 mW
15.4 USB Transceiver
USB 2.0-Compliant in full-, low-, and high-speed modes.
15.5 AC Electrical Characteristics
Both the upstream USB transceiver and all four downstream
transceivers have passed the USB-IF USB 2.0 Electrical Certi-
fication Testing.
15.5.1 Serial Peripheral Interface
15.3 DC Electrical Characteristics
Parameter Description Conditions Min. Typ. Max. Unit
V
CC
Supply Voltage 3.15 3.3 3.45 V
V
CC
RampUp Ramp rate on V
CC
18 V/ms
V
IH
Input High Voltage 2 5.25 V
V
IL
Input Low Voltage –0.5 0.8 V
I
l
Input Leakage Current 0 < V
IN
< V
CC
±10 µA
V
OH
Output Voltage High I
OUT
= 4 mA 2.4 V
V
OL
Output Low Voltage I
OUT
= –4 mA 0.4 V
I
OH
Output Current High 4mA
I
OL
Output Current Low 4mA
C
IN
Input Pin Capacitance 10 pF
I
SUSP
Suspend Current TBD µA
I
CC
Supply Current
4 Active ports Full-speed Host, Full-speed Devices 53 mA
High-speed Host, High-speed Devices 174 mA
High-speed Host, Full-speed Devices 77 mA
2 Active Ports Full-speed Host, Full-speed Devices 50 mA
High-speed Host, High-speed Devices 123 mA
High-speed Host, Full-speed Devices 75 mA
No Active Ports Full-speed Host 48 mA
High-speed Host 72 mA
Parameter Description Conditions Min. Typ. Max. Unit
Clock Rise/Fall Time 500 ns
Clock Frequency 250 KHz
Data Set-up Time 50 ns
Hold Time 100 ns
Reset Period 1.9 ms