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Part Name
Description
MC141555 View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
MC141555
USB Hub Controller CMOS
Motorola => Freescale
MC141555 Datasheet PDF : 16 Pages
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Freescale Semiconductor, Inc.
Figure 1. BLOCK DIAGRAM
PL
5
Hub
Controller
Serial Interface
Engine
(SIE)
OSC1
2
OSC2
3
Clock
Doubler
48MHz
Frame Counter
(1ms)
VDD
1
VSS
4
Power
Supply
&
3.3V
Regulator
VDD3CAP
8
3.3 Volts
Downstream
PORT 1
11
DP1
12
DM1
10
PWRSW1
9
OVR1
Downstream
PORT 2
15
DP2
16
DM2
14
PWRSW2
13
OVR2
Repeater
Downstream
PORT 3
19
DP3
20
DM3
18
PWRSW3
17
OVR3
Downstream
PORT 4
23
DP4
24
DM4
22
PWRSW4
21
OVR4
6
DP0
DM0
7
Root
Port
Downstream
PORT 5
27
DP5/SEL1
28
DM5/SEL0
26
PWRSW5
25
OVR5/GANG
MC141555
2
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
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