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PDF MC141555P1 Data sheet ( Hoja de datos )
| Número de pieza | MC141555P1 | |
| Descripción | USB Hub Controller CMOS | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
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MOTOROLA
Freescale Semiconductor, Inc.
SEMICONDUCTOR TECHICAL DATA
Product Preview
Order this document
by MC141555
USB Hub Controller
MC141555
CMOS
This device is a self-contained USB Hub which complies with USB Hub
Specification Rev 1.0. This device is used to expand the USB ports of your PC
system while needed. Because of its self-contained and bus-powered/self-
powered capability, it can hide the complexity from the user and be flexibly
placed anywhere, such as monitor, keyboard, motherboard, Hub-box, etc. The
MC141555 consists of Serial Interface Engine (SIE), Hub Repeater, and Hub
Controller, supporting one upstream port and up to five downstream ports.
Both Low Speed Mode (1.5Mbps) and Full Speed Mode (12Mbps) are sup-
ported by automatically detecting which data line (D+ or D-) is pulled high
whenever downstream devices are connected to the bus or at power-up.
MC141555 Hub can be Self Powered or Bus Powered. When self-powered,
MC141555 is powered by an external 5 volt supply and capable of deliver
500mA current to each downstream port. Power management for all down-
stream ports supports power-switching and overcurrent detection with Individ-
ual or Ganged control; a self-powered MC141555 supports Individual control
only, but bus-powered MC141555 supports either Individual or Ganged control.
When Ganged control, PWRSW1 and OVR1 are dedicated for power manage-
ment.
Features Highlight
Hub
• Self-contained Hub Includes Serial Interface Engine (SIE), Hub Repeater
and Hub Controller
• Universal Serial Bus (USB) Version 1.0 Compliant
• Self-powered or Bus-powered
• Individual/Ganged Downstream Port Power Switching
• Individual/Ganged Downstream Port Overcurrent Detection
• All Downstream Ports Support Full Speed and Low Speed Operation
• Suspend and Resume Operations
• Host Reset Operation
28 1
P SUFFIX
PLASTIC PACKAGE
CASE 655
ORDERING INFORMATION
MC141555P1 Plastic Dip
PIN ASSIGNMENT
VDD 1
OSC1 2
OSC2 3
VSS 4
PL 5
DP0 6
DM0 7
VDD3CAP 8
OVR1 9
PWRSW1 10
DP1 11
DM1 12
OVR2 13
PWRSW2 14
28 DM5/SEL0
27 DP5/SEL1
26 PWRSW5
25 OVR5/GANG
24 DM4
23 DP4
22 PWRSW4
21 OVR4
20 DM3
19 DP3
18 PWRSW3
17 OVR3
16 DM2
15 DP2
General Characteristics
• 28 DIP Package
• Crystal Input 24MHz
• Internal 3.3Volt Regulator
• Single 5Volt Power Supply
• Low-power CMOS Technology
This document contains information on a new product. Specifications and information herein are subject to change without notice.
© Motorola, Inc. 1998
For More Information On This ProRdEu0V3c/39.t80,
Go to: www.freescale.com
1 page  
Freescale Semiconductor, Inc.
FULL SPEED OPERATING HUB ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Conditions
Min
Max
Unit
tHDD1
tHDD2
Hub Differential Data Delay
(with cable)
(without cable)
Figure 5, Figure 6
—
—
70 ns
40 ns
Hub Differential Driver Jitter (including cable)
tHDJ1
tHDJ2
To Next Transition
For Paired Transitions
— -3 3 ns
-1 1 ns
tSOP
Data Bit Width Distortion After SOP
— -5 3 ns
tHESK
Hub EOP Output Width Skew
— -15 15 ns
LOW SPEED OPERATING HUB ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Conditions
Min
Max
Unit
tLHDD
Hub Differential Data Delay
Figure 5, Figure 6
—
300 ns
Hub Differential Driver Jitter (including cable)
tLDHJ1
tLDHJ2
tLDHJ2
tLDHJ2
Downstream:
To Next Transition
For Paired Transitions
Upstream:
To Next Transition
For Paired Transitions
-45 45 ns
— -15 15 ns
-45 45 ns
-45 45 ns
tSOP
Data Bit Width Distortion After SOP
— -60 45 ns
tLHESK
Hub EOP Output Width Skew
—
-300
300 ns
Upstream
End of
Cable
Vss
Downstream
Port
Vss
50% Point of
Initial Swing
Downstream
Port
Vss
Hub Delay
Downstream
tHDD1
Crossover
Point
Figure 5. Downstream Hub Delay
Upstream
End of
Cable
Vss
Crossover
Point
Hub Delay
Downstream
tHDD1, tHDD2
Crossover
Point
Figure 6. Upstream Hub Delay
MOTOROLA
For More Information On This Product,
Go to: www.freescale.com
MC141555
5
5 Page 
Freescale Semiconductor, Inc.
Table 8. Standard Requests
bmRequestType
00000000b
(device)
bRequest
01h
Clear_Feature
wValue
0001h
wIndex
0000h
wLength
0000h
Data/Handshake
None/Ack
Disable remote wakeup feature
00000001b
(interface)
xxxxh
xxxxh
xxxxh
STALL
00000010b
(endpoint)
10000000b
10000000b
10000001b
10000000b
(device)
10000001b
(interface)
10000010b
(endpoint)
00000000b
00000000b
00000000b
00000000b
(device)
0000h
08h
Get_Configuration
06h
Get_Descriptor
0Ah
Get_Interface
00h
Get_Status
0000h
0100h
0200h
0400h
0500h
0000h
0000h
0000h (e.p. 0)
0081h (e.p. 1)
0000h
0000h
0001h
0000h
0001h
0012h
0019h
xxxx
xxxx
0001h
0000h
0002h
xxxxh
05h
Set_Address
09h
Set_Configuration
07h
Set_Descriptior
03h
Set_Feature
Device
address
0000h/
0001h
xxxxh
0000h
0081h
0000h
0000h
xxxxh
0001h
0000h
0000h
0000h
xxxxh
0000h
None/Ack
Clear Endpoint Stall condition
ConfigurationValue
Device Descriptor
Configuration Descriptor
STALL
STALL
00h
current Remote Wakeup/ Pow-
ered status
0000h
0001h = STALLed
0000h = not STALLed
None/Ack
None/Ack
xxxx/STALL
None/Ack
Enable remote wakeup feature
00000001b
(interface)
xxxxh
xxxxh
xxxxh
None/STALL
00000010b
(endpoint)
00000001b
10000010b
0Bh
Set_Interface
0Ch
Synch_Frame
0000h
0000h
xxxxh
0000h (e.p. 0)
0081h (e.p. 1)
0000h
0000h
0000h
xxxxh
xxxxh
None/ACK
Set Endpoint STALL condition
None/Ack
STALL
MOTOROLA
For More Information On This Product,
Go to: www.freescale.com
MC141555
11
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| PDF Descargar | [ Datasheet MC141555P1.PDF ] | |
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