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AT43301 Datasheet(PDF) 13 Page - ATMEL Corporation

Part # AT43301
Description  Low-cost USB Hub Controller
PDF  27 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT43301 Datasheet(HTML) 13 Page - ATMEL Corporation

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13
1137J–USB–01/06
AT43301
Note:
OSC2 must not be used to drive other circuitry.
3.3
AC Characteristics
Note:
1. With external 22
Ω series resistor.
Table 3-3.
PWR, STAT, OVC
Symbol
Parameter
Condition
Min
Max
Unit
VOL2
Output Low Level, PWR, STAT
IOL = 4 mA
0.5
V
C
OUT
Output Capacitance
1 MHz
10
pF
V
IL3
Input Low Level
0.3V
CEXT
V
VIH3
Input High Level
0.7VCEXT
V
C
OUT
Output Capacitance
1 MHz
10
pF
VOH2
Output High Level, PWR
IOH = 4 mA
VCEXT - 0.5
V
Table 3-4.
Oscillator Signals: OSC1, OSC2
Symbol
Parameter
Condition
Min
Max
Unit
VLH
OSC1 Switching Level
0.47
1.20
V
VHL
OSC1 Switching Level
0.67
1.44
V
C
X1
Input Capacitance, OSC1
17
pF
CX2
Output Capacitance, OSC2
17
pF
C12
OSC1/2 Capacitance
1pF
tsu
Start-up Time
6 MHz, fundamental
2
ms
DL
Drive Level
VCC = 3.3V, 6 MHz crystal, 100Ω equiv series resistor
150
µW
Table 3-5.
DPx, DMx Driver Characteristics, Full Speed Operation
Symbol
Parameter
Condition
Min
Max
Unit
tR
Rise Time
CL = 50 pF
4
20
ns
t
F
Fall Time
C
L = 50 pF
4
20
ns
t
RFM
t
R/tF Matching
90
110
%
ZDRV
Driver Output Resistance(1)
Steady state drive
28
44
Ω



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