AT43310 データシートの表示（PDF） - Atmel Corporation

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AT43310

USB Hub

Atmel Corporation 

AT43310

Features

• Bus Powered Hub Controller

• Full Compliance with USB Spec Rev 1

• Full Speed USB Host Interface

• Four Downstream Ports

• Downstream Support for Full Speed and Low Speed Transfer Rates

• Continual Monitoring of Port by System Host

• Individual Port Power Control

• USB Connection Status Indicators

• 6 MHz Oscillator with On-Chip PLL

Description

The AT43310 is a fully compliant USB hub chip with 5 ports, one upstream port and

four full/low-speed downstream ports. The AT43310 can be used as a stand alone or

can provide a simple and quick method of adding USB ports to an existing device.

As a repeater, the AT43310 provides upstream connectivity between the selected

function and the host. Connectivity involves setting up and tearing down connections,

handling bus faults, recovering from bus faults and detecting downstream device con-

nections and disconnections.

The AT43310 may also act as a hub controller managing the hub operations and

recording the status of the hub, bus transactions, and downstream ports. In this mode,

the AT43310 tracks and generates the bus enumeration, provides configuration infor-

mation to the host, provides individual port status to the host, and controls the port

operation based on host commands.

USB Hub

AT43310

Pin Configurations

SOIC/DIP/Cerdip

PWR2 1

PWR3 2

PWR4 3

VCC5 4

VSS 5

OSC1 6

OSC2 7

LFT 8

VCCA 9

OVL4 10

OVL3 11

OVL2 12

OVL1 13

VREF 14

GND 15

STAT4 16

32 PWR1

31 DP4

30 DM4

29 DP3

28 DM3

27 GND

26 DP2

25 DM2

24 VCC3

23 DP1

22 XDM1

21 DP0

20 DM0

19 STAT1

18 STAT2

17 STAT3

Rev. 0901A-A–01/98

1

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