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USB2422 の電気的特性と機能

USB2422のメーカーはMicrochipです、この部品の機能は「2-Port USB 2.0 Hi-Speed Hub Controller」です。


製品の詳細 ( Datasheet PDF )

部品番号 USB2422
部品説明 2-Port USB 2.0 Hi-Speed Hub Controller
メーカ Microchip
ロゴ Microchip ロゴ 




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USB2422 Datasheet, USB2422 PDF,ピン配置, 機能
USB2422
2-Port USB 2.0 Hi-Speed Hub Controller
General Description
The Microchip USB2422 hub is a low-power, single
transaction translator, hub controller IC with two down-
stream ports for embedded USB solutions. The hub
controller can attach to an upstream port as a Hi-Speed
and Full-Speed hub or as a Full-Speed only hub. The
hub supports Low-Speed, Full-Speed, and Hi-Speed
(when configured as a Hi-Speed hub) downstream
devices on the enabled downstream ports.
All required resistors on the USB ports are integrated
into the hub. This includes all series termination resis-
tors on D+ and D- pins and all required pull-down and
pull-up resistors on D+ and D- pins. The over-current
sense inputs for the downstream facing ports have
internal pull-up resistors.
Features
• Supports the USB Battery Charging Specification,
Revision 1.1
• Fully integrated USB termination and pull-up/pull-
down resistors
• Supports a single external 3.3 V supply source;
internal regulators provide 1.2 V internal core volt-
age
• On-chip driver for 24 MHz crystal resonator or
external 24 MHz clock input
• ESD protection up to 6 kV on all USB pins
• Supports self-powered operation
• The hub contains a built-in default configuration;
no external configuration options or components
are required
• Downstream ports as non-removable ports
• Downstream port power control and over-current
detection on an individual or ganged basis
• Supports compound devices on a port-by-port
basis
• 24-pin SQFN (4x4 mm), RoHS-compliant pack-
age
• Commercial temperature range support:
0ºC to +70ºC
• Industrial temperature range support:
-40ºC to +85ºC
Highlights
• High performance, low-power, small footprint hub
controller IC with two downstream ports
• Fully compliant with the USB 2.0 Specification
• Optimized for minimal bill-of-materials and low-
cost designs
Applications
• LCD monitors and TVs
• Multi-function USB peripherals
• PC motherboards
• Set-top boxes, DVD players, DVR/PVR
• Printers and scanners
• PC media drive bay
• Portable hub boxes
• Mobile PC docking
• Embedded systems
• Gaming consoles
• Cable/DSL modems
• HDD enclosures
• KVM switches
• Server front panels
• Point-of-Sale (POS) systems
• IP telephony
• Automobile/home audio systems
• Thin client terminals
2013 - 2015 Microchip Technology Inc.
DS00001726B-page 1

1 Page





USB2422 pdf, ピン配列
USB2422
Table of Contents
1.0 Block Diagram ................................................................................................................................................................................. 4
2.0 Pin Descriptions .............................................................................................................................................................................. 6
3.0 Battery Charging Support ............................................................................................................................................................. 14
4.0 Configuration Options ................................................................................................................................................................... 16
5.0 DC Parameters ............................................................................................................................................................................. 35
6.0 AC Specifications .......................................................................................................................................................................... 38
7.0 Package Outline ............................................................................................................................................................................ 40
Appendix A: Acronyms ........................................................................................................................................................................ 41
Appendix B: References ..................................................................................................................................................................... 42
Appendix C: Data Sheet Revision History .......................................................................................................................................... 43
The Microchip Web Site ...................................................................................................................................................................... 44
Customer Change Notification Service ............................................................................................................................................... 44
Customer Support ............................................................................................................................................................................... 44
Product Identification System ............................................................................................................................................................. 45
2013 - 2015 Microchip Technology Inc.
DS00001726B-page 3


3Pages


USB2422 電子部品, 半導体
USB2422
2.0 PIN DESCRIPTIONS
This chapter is organized by a set of pin configurations followed by a corresponding pin list organized by function
according to their associated interface. A detailed description list of each signal (named in the pin list) is organized by
function in Table 2-2, “USB2422 Pin Descriptions,” on page 7. Refer to Table 2-3, “Buffer Type Descriptions,” on page 10
for a list of buffer types.
An N at the end of a signal name indicates that the active (asserted) state occurs when the signal is at a low voltage
level. When the N is not present, the signal is asserted when it is at a high voltage level. The terms assertion and nega-
tion are used exclusively in order to avoid confusion when working with a mixture of active low and active high signals.
The term assert, or assertion, indicates that a signal is active, independent of whether that level is represented by a high
or low voltage. The term negate, or negation, indicates that a signal is inactive.
2.1 Pin Configuration
FIGURE 2-1:
USB2422 24-Pin SQFN
USBDM_UP
USBDP_UP
XTALOUT/(CLKIN_EN)
XTALIN/CLKIN
PLLFILT
RBIAS
19 12
20 11
21 USB2422 10
(Top View SQFN-24)
22 9
23
Thermal Slug
24 (must be connected to VSS)
8
7
OCS2_N
PRTPWR2
CRFILT
VDD33
OCS1_N
PRTPWR1/(BC_EN1)
Indicates pins on the bottom of the device.
DS00001726B-page 6
2013 - 2015 Microchip Technology Inc.

6 Page



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共有リンク

Link :


部品番号部品説明メーカ
USB2422

2-Port USB 2.0 Hi-Speed Hub Controller

SMSC
SMSC
USB2422

2-Port USB 2.0 Hi-Speed Hub Controller

Microchip
Microchip


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