MC141555P1 Motorola, MC141555P1 Datasheet

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MC141555P1

Manufacturer Part Number
MC141555P1
Description
USB Hub Controller CMOS
Manufacturer
Motorola
Datasheet

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MOTOROLA
SEMICONDUCTOR TECHICAL DATA
Product Preview
USB Hub Controller
CMOS
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.
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 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.
• Self-contained Hub Includes Serial Interface Engine (SIE), Hub Repeater
• 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
General Characteristics
• 28 DIP Package
• Crystal Input 24MHz
• Internal 3.3Volt Regulator
• Single 5Volt Power Supply
• Low-power CMOS Technology
© Motorola, Inc. 1998
Hub
This document contains information on a new product. Specifications and information herein are subject to change without notice.
This device is a self-contained USB Hub which complies with USB Hub
Both Low Speed Mode (1.5Mbps) and Full Speed Mode (12Mbps) are sup-
MC141555 Hub can be Self Powered or Bus Powered. When self-powered,
and Hub Controller
Features Highlight
REV 3.0
03/98
VDD3CAP
PWRSW2
PWRSW1
ORDERING INFORMATION
OSC1
OSC2
OVR2
OVR1
MC141555P1
VDD
VSS
DP0
DM0
DM1
DP1
PL
MC141555
28 1
PLASTIC PACKAGE
PIN ASSIGNMENT
14
10
11
12
13
1
2
3
5
6
7
8
9
4
CASE 655
P SUFFIX
16
15
Order this document
17
26
25
20
19
18
Plastic Dip
28
27
24
23
22
21
PWRSW5
OVR4
OVR3
DM5/SEL0
DP5/SEL1
OVR5/GANG
DM4
DP4
PWRSW4
DM3
DP3
PWRSW3
DM2
DP2
by MC141555

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MC141555P1 Summary of contents

Page 1

... This document contains information on a new product. Specifications and information herein are subject to change without notice. © Motorola, Inc. 1998 Order this document by MC141555 MC141555 SUFFIX PLASTIC PACKAGE CASE 655 ORDERING INFORMATION MC141555P1 Plastic Dip PIN ASSIGNMENT VDD 28 DM5/SEL0 1 DP5/SEL1 27 OSC1 ...

Page 2

... Serial Interface Engine (SIE) Frame Counter (1ms) Repeater 3.3 Volts 11 DP1 12 DM1 Downstream 10 PORT 1 PWRSW1 9 OVR1 15 DP2 16 DM2 Downstream 14 PORT 2 PWRSW2 13 OVR2 19 DP3 20 DM3 Downstream 18 PORT 3 PWRSW3 17 OVR3 23 DP4 24 DM4 Downstream 22 PORT 4 PWRSW4 21 OVR4 27 DP5/SEL1 28 DM5/SEL0 Downstream 26 PORT 5 PWRSW5 25 OVR5/GANG MOTOROLA ...

Page 3

... Rise Time for DP/DM Fall Time for DP/ RFM Rise/Fall Time Matching V CRS Output Signal Crossover Voltage load R 2 Data load Figure 2. Differential Driver Switching Load MOTOROLA Value Unit - 0 7 – – 150 DD( SS( 25C, Conditions C load = load = 100 — ...

Page 4

... Common Mode Input Voltage (volts) Min Max Unit 4.65 5.25 V 4.40 5.25 V 2.8 3.6 V — 0.3 V — — – – — — 100 mA 0.2 — V 0.8 2.5 V 0.8 2.0 V 120 — F MOTOROLA ...

Page 5

... Data Bit Width Distortion After SOP t LHESK Hub EOP Output Width Skew 50% Point of Initial Swing Upstream End of Cable Vss Hub Delay Downstream Downstream Port t HDD1 Vss Figure 5. Downstream Hub Delay MOTOROLA Conditions Min Figure 5, Figure 6 — — — — -5 — -15 Conditions Min Figure 5, Figure 6 — ...

Page 6

... DM5/SEL0 (Pin 28) In initialization, this pin, along with SEL1 and OVR5, determines Power Mode and Power Control Mode. (refer to Table1 for detail) After initialization, if self-powered, this pin is differential data minus I/O pin of downstream port 5; if bus-powered, pull this pin high. MOTOROLA ...

Page 7

... Ganged Control. In this mode, only PWRSW1 and OVR1 are dedicated to power management for all 4 downstream ports. All three operating modes with pin input states during Power-On Reset are summarized in Table 1. MOTOROLA Table 1. Configuration Selection DP5/ DM5/ PWRSW5 OVR5/ ...

Page 8

... USB Spec. Release Number = Rev 1.00 1 09h Class code 1 00h Subclass code 1 00h Protocol code 1 08h Max. packet size for Endpoint 1063h Vendor ID = Motorola Corporation (assigned by USB) 2 1555h Product ID = MC141555 2 0100h Device Release No. = 1.00 1 00h Manufacturer string descriptor = Open 1 00h Product string descriptor = Open 1 00h ...

Page 9

... Table 6. Hub Descriptor Offset Field 0 bLength 1 bDescriptorType 2 bNbrPorts 3 wHubCharacteristics 5 bPwrOn2PwrGood 6 bHubContrCurrent MOTOROLA Size Value Description 1 09h No. of bytes in this descriptor = 9 1 04h Interface descriptor type 1 00h No. of Interface = 0 1 00h Alternate setting value for the interface identified in the prior field ...

Page 10

... Port 1 status change detected 0 No status change in Port 2 1 Port 2 status change detected 0 No status change in Port 3 1 Port 3 status change detected 0 No status change in Port 4 1 Port 4 status change detected 0 No status change in Port 5 1 Port 5 status change detected 00 Default values MOTOROLA ...

Page 11

... Set_Configuration 00000000b 07h Set_Descriptior 00000000b 03h (device) Set_Feature 00000001b (interface) 00000010b (endpoint) 00000001b 0Bh Set_Interface 10000010b 0Ch Synch_Frame MOTOROLA wValue wIndex wLength 0001h 0000h 0000h xxxxh xxxxh xxxxh 0000h 0000h (e.p. 0) 0000h 0081h (e.p. 1) 0000h 0000h 0001h 0100h 0000h 0012h ...

Page 12

... Data/Handshake None/Ack None/Ack STALL STALL STALL STALL Bus State per Port Hub Descriptor 00000000000000OPb, 00000000000000opb O: Over Current indicator P: Local Power status o: C_Hub_Over_Current p: C_Hub_Local_Power 000000LP000ROSECb, 00000000000rosecb L: Port_Low_Speed P: Port_Power R: Port_Reset O: Port_Over_Current S: Port_Suspend E: Port_Enable C: Port_Connection r: C_Port_Reset o: C_Port_Over_Current s: C_Port_Suspend e: C_Port_Enable c: C_Port_Connection MOTOROLA ...

Page 13

... SetHubFeature Set_Feature C_HubLocalPower C_HubOverCurrent 00100011b 03h SetPortFeature Set_Feature Port_Connection Port_Enable Port_Suspend Port_Over_Current Port_Reset Port_Power Port_Low_Speed C_Port_Connection C_Port_Enable C_Port_Suspend C_PortOverCurrent C_Port_Reset MOTOROLA wValue wIndex wLength xxxxh xxxxh xxxxh Feature 0000h 0000h Selector 0000h 0001h Feature 0001h ~ 0005h 0000h Selector 0000h 0001h 0002h ...

Page 14

... DM0 8 VDD3CAP 9 OVR1 10 PWRSW1 PWRSW3 11 DP1 12 DM1 13 OVR2 PWRSW2 14 0 PWRSW5 OVR5 0 PWRSW5 OVR5 Connections depend on power mode 27 selection. 26 Refer to Table 10 for Mode Selection DM4 Downstream DP4 23 device 22 21 OVR4 DM3 20 Downstream DP3 19 device 18 17 OVR3 Downstream DM2 16 device 15 DP2 MOTOROLA 1 0 ...

Page 15

... APPLICATION DIAGRAM (downstream port 15Kohm 15K ohm V BUS GND MOTOROLA 10ohm 10ohm ferrite bead ferrite bead + + 120UFuF 0.01uF - - ferrite bead MC141555 (at MC141555) V BUS (MC141555) GND (MC141555) MC141555 15 ...

Page 16

... APPLICATION DIAGRAM (Pull-high circuit of upstream port) Pull-high CKT 1.5 Kohm DP0 DM0 DP0 (upstream device) 10uF MC141555 16 VDD3CAP V BUS 10ohm 10ohm 2N3906 + 20Kohm - 61Kohm 390Kohm 2N3904 20Kohm DP0 ( at MC141555) DM0 (at MC141555) VDD3CAP V BUS MOTOROLA ...

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