Datasheet > XR22414CL48EVB

XR22414CL48EVB

更新时间： 2024-11-03 01:04:07

品牌	Logo	应用领域
艾科嘉 - EXAR		/
页数	文件大小	规格书
13页	565K
描述
USB 2.0 4-Port MTT Hub

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中文翻译

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XR22414CL48EVB 数据手册

XR22414

USB 2.0 4-Port MTT Hub

General Description

FEATURES

The XR22414 is a USB 2.0 4-port hub using multiple transaction

translators (MTT) for highest possible bandwidth capability.

ꢀ■

USB 2.0 compliant interface

Multiple transaction translators (MTT)

Regulated +3.3V Output Power

Individual port and hub activity LED

indicators

Individual or ganged port power enables

Individual or global overcurrent sensing

Single 5V or 3.3V power supply

Single 12MHz Crystal

The upstream USB interface has an integrated USB 2.0 PHY and

device controller that is compliant with both Hi-Speed (480Mbps) and

Full-Speed (12Mbps) and downstream PHY supporting Hi-Speed,

Full-Speed and Low-Speed (1.5Mbps) on each of the 4 downstream

ports.

ꢀ■

The XR22414 provides two power modes, ganged or individual power

control as well as global or individual over-current sensing modes.

48-pin QFN and LQFP package options

APPLICATIONS

The XR22414 operates from a single 5V or 3.3V power input. When

be connected to VCC33 power input pins as well as external circuitry.

In turn a second internal regulator provides a 1.8V output from the

3.3V input. This 1.8V output may be connected to VCC18 power input

pins. Individual port activity and overall hub activity indicators provide

status outputs for external LEDs.

ꢀ■

USB port expansion

POS Terminals

Test Instrumentation

Factory Automation and Process Controls

ꢀ■

Industrial Applications

Ordering Information - Back Page

Block Diagram

USB Host

Upstream Phy

XR22414

Hub Controller

Port Routing Switch

TT #1

TT #2

TT #3

TT #4

Downstream

Phy #2

Downstream

Phy #4

Downstream

Phy #3

Downstream

Phy #1

Device #1

Device #2

Device #3

Device #4

REV1A

1/13

12 3 4 5 6 7...13

中文翻译

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