USB97C100 Standard Microsystems Corporation, USB97C100 Datasheet - Page 54
USB97C100
Manufacturer Part Number
USB97C100
Description
USB97C100 Multi-endpoint Usb Peripheral Controller(not Recommended For Designs)
Manufacturer
Standard Microsystems Corporation
Datasheet
1.USB97C100.pdf
(64 pages)
- Current page: 54 of 64
- Download datasheet (441Kb)
Note 1: All voltages are measured from the local ground potential, unless otherwise specified.
Note 2: All timing use a capacitive load (CL) to ground of 50pF, unless otherwise specified.
Note 3: This is relative to VUSBIN.
Note 4: This is dependent on block configuration set by software.
Note 5: When the internal ring oscillator and waiting for first setup packet.
USB AC PARAMETERS
SMSC DS – USB97C100
Differential
Data Lines
Capacitance
Transceiver Capacitance
Terminals
Bus Pull-up Resistor on
Root Port
Bus Pull-down Resistor on
Downstream Port
Full Speed: 4 to 20ns at C
T
PARAMETER
PERIOD
End of Cable
Driver End
Receiver
of Cable
C
C
VSS
VSS
L
L
FIGURE 5 - DATA SIGNAL RISE AND FALL TIME
FIGURE 7 - DIFFERENTIAL DATA JITTER
L
= 50pF
SYMBOL
Differential
N * T
Data Lines
Crossover
RPU
RPD
CIN
Consecutive
Transitions
Points
FIGURE 6 - CABLE DELAY
PERIOD
+ T
One Way
Cable
Delay
(max)
30ns
50% Point of
Initial Swing
xJR1
N * T
(1.5 K
(15 K
10%
CONDITIONS
(NOTE 1, 2)
Page 54
Pin to GND
Transitions
Cable Delay
Round Trip
80ns (max)
Rise Time
PERIOD
Paired
+/- 5%)
+/- 5%)
t
R
+ T
Crossover
Data Line
xJR2
Point
90%
1.425
14.25
MIN
TYP
90%
Fall Time
1.575
15.75
MAX
t
20
F
10%
UNIT
k
k
pF
Rev. 01/03/2001
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