AT43301-AU

AT43301-AU Datasheet

Part	Datasheet
AT43301-AU	AT43301-AU (pdf)

Related Parts	Information
AT43301-SU	AT43301-SU
AT43301-SC	AT43301-SC
AT43301-AC	AT43301-AC

PDF Datasheet Preview
The AT43301 is a 5-port USB hub chip supporting one upstream and four downstream ports. The AT43301 connects to an upstream hub or host/root hub via Port0, while the other ports connect to external downstream USB devices. The hub re-transmits the USB differential signal between Port0 and Ports[1:4] in both directions. The AT43301 is designed for very low-cost bus-powered or self-powered hub applications and is available in a 24-lead SOIC and a 32-lead LQFP packages. The 32-lead version of the AT43301, the AT43301-AC, has a 48 MHz clock input. The AT43301 supports the 12 Mb/s full speed as well as Mb/s slow speed USB transactions. To reduce EMI, the AT43301’s oscillator frequency is 6 MHz even though some internal circuitry operates at 48 MHz. Low-cost USB Hub Controller AT43301 Figure Pin Configurations 24-lead SOIC Top View VCC VSS CEXT1 OSC1 OSC2 LFT STAT PWR OVC LPSTAT TEST SELF/BUS AT43301-SC NC DP4 DM4 DP3 DM3 DP2 DM2 DP1 DM1 DP0 DM0 VSS 32-lead LQFP Top View 32 NC 31 DP3 30 DM3 29 DP2 28 DM2 27 DP1 26 DM1 25 NC NC 1 DM4 2 DP4 3 48 4 VCC 5 VSS 6 CEXT1 7 AT43301-AC 24 NC 23 DP0 22 DM0 21 VSS 20 NC 19 SELF/BUS 18 TEST 17 LPSTAT VSS 9 OSC1 10 OSC2 11 LFT 12 STAT 13 PWR 14 NC 15 OVC 16 The AT43301 consists of a Serial Interface Engine, a Hub Repeater, and a Hub Controller. The Serial Interface Engine’s tasks are: • Manage the USB communication protocol • USB signaling detection/generation • Clock/data separation, data encoding/decoding, CRC generation/checking • Data serialization/deserialization The Hub Repeater is responsible for: • Providing upstream connectivity between the selected device and the host • Managing connectivity setup and tear-down • Handling bus fault detection and recovery • Detecting connect/disconnect on each port The Hub Controller is responsible for: • Hub enumeration • Providing configuration information to the Host • Providing status of each port to the Host • Controlling each port per host command • Managing port power supply Block Diagram Figure AT43301 Block Diagram UPSTREAM PORT 0 HUB CONTROLLER SERIAL INTERFACE ENGINE HUB REPEATER ENDPOINT 0 ENDPOINT 1 PORT 1 PORT 2 PORT 3 PORT 4 TO DOWNSTREAM DEVICES Note: This document assumes that the reader is familiar with the Universal Serial Bus and therefore only describes the unique features of the AT43301 controller. For detailed information about the USB and its operation, the reader should refer to the Universal Serial Bus Specification Version September 23, 2 AT43301 Pin Assignment Type: Ordering Information AT43301 Standard Package Options Ordering Code Package AT43301-SC 24S SOIC AT43301-AC 32AA LQFP Operation Range Commercial 0°C to 70°C Commercial 0°C to 70°C AT43301 Green Package Options Pb/Halide-free/RoHS Compliant Ordering Code Package Operation Range AT43301-AU 32AA LQFP Industrial -40°C to 85°C AT43301-SU 24S SOIC Industrial -40°C to 85°C 24S 32AA Package Type 24-lead in. body Plastic Gull Wing Small Outline Package SOIC 32-lead, Low-profile mm Plastic Quad Flat Package LQFP 24 AT43301 Packaging Information 32AA LQFP AT43301 PIN 1 e PIN 1 IDENTIFIER B E1 E A1 A2 L This package conforms to JEDEC reference MS-026, Variation BBA. Dimensions D1 and E1 do not include mold protrusion. Allowable protrusion is mm per side. Dimensions D1 and E1 are maximum plastic body size dimensions including mold mismatch. Lead coplanarity is mm maximum. COMMON DIMENSIONS Unit of Measure = mm SYMBOL MIN NOTE Note 2 Note 2 2325 Orchard Parkway R San Jose, CA 95131 32AA, 32-lead, 7 x 7 mm Body Size, mm Body Thickness, mm Lead Pitch, Low Profile Plastic Quad Flat Package LQFP 32AA 24S SOIC PIN 1 ID PIN 1 0º ~ 8º COMMON DIMENSIONS Unit of Measure = mm SYMBOL A A1 D D1 E B L L1 e NOTE TITLE 2325 Orchard Parkway R San Jose, CA 95131 24S, 24-lead body Plastic Gull Wing Small Outline SOIC 06/17/2002 26 AT43301 Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 487-2600 Regional Headquarters

PDF Datasheet Preview

The AT43301 is a 5-port USB hub chip supporting one upstream and four downstream ports. The AT43301 connects to an upstream hub or host/root hub via Port0, while the other ports connect to external downstream USB devices. The hub re-transmits the USB differential signal between Port0 and Ports[1:4] in both directions. The AT43301 is designed for very low-cost bus-powered or self-powered hub applications and is available in a 24-lead SOIC and a 32-lead LQFP packages. The 32-lead version of the AT43301, the AT43301-AC, has a 48 MHz clock input.

The AT43301 supports the 12 Mb/s full speed as well as Mb/s slow speed USB transactions. To reduce EMI, the AT43301’s oscillator frequency is 6 MHz even though some internal circuitry operates at 48 MHz.

Low-cost USB Hub Controller

AT43301

Figure Pin Configurations
24-lead SOIC Top View

VCC VSS CEXT1 OSC1 OSC2 LFT STAT PWR OVC LPSTAT TEST SELF/BUS

AT43301-SC

NC DP4 DM4 DP3 DM3 DP2 DM2 DP1 DM1 DP0 DM0 VSS
32-lead LQFP Top View
32 NC 31 DP3 30 DM3 29 DP2 28 DM2 27 DP1 26 DM1 25 NC

NC 1 DM4 2 DP4 3
48 4 VCC 5 VSS 6 CEXT1 7

AT43301-AC
24 NC 23 DP0 22 DM0 21 VSS 20 NC 19 SELF/BUS 18 TEST 17 LPSTAT

VSS 9 OSC1 10 OSC2 11

LFT 12 STAT 13 PWR 14

NC 15 OVC 16

The AT43301 consists of a Serial Interface Engine, a Hub Repeater, and a Hub Controller.

The Serial Interface Engine’s tasks are:
• Manage the USB communication protocol
• USB signaling detection/generation
• Clock/data separation, data encoding/decoding, CRC generation/checking
• Data serialization/deserialization The Hub Repeater is responsible for:
• Providing upstream connectivity between the selected device and the host
• Managing connectivity setup and tear-down
• Handling bus fault detection and recovery
• Detecting connect/disconnect on each port The Hub Controller is responsible for:
• Hub enumeration
• Providing configuration information to the Host
• Providing status of each port to the Host
• Controlling each port per host command
• Managing port power supply

Block Diagram

Figure AT43301 Block Diagram

UPSTREAM PORT 0

HUB CONTROLLER

SERIAL INTERFACE

ENGINE

HUB REPEATER

ENDPOINT 0 ENDPOINT 1

PORT 1

PORT 2

PORT 3

PORT 4

TO DOWNSTREAM DEVICES

Note:

This document assumes that the reader is familiar with the Universal Serial Bus and therefore only describes the unique features of the AT43301 controller. For detailed information about the USB and its operation, the reader should refer to the Universal Serial Bus Specification Version September 23,
2 AT43301

Pin Assignment

Type:
Ordering Information

AT43301 Standard Package Options
Ordering Code

Package

AT43301-SC
24S SOIC

AT43301-AC
32AA LQFP

Operation Range Commercial 0°C to 70°C Commercial 0°C to 70°C

AT43301 Green Package Options Pb/Halide-free/RoHS Compliant
Ordering Code

Package

Operation Range

AT43301-AU
32AA LQFP

Industrial -40°C to 85°C

AT43301-SU
24S SOIC

Industrial -40°C to 85°C
24S 32AA

Package Type 24-lead in. body Plastic Gull Wing Small Outline Package SOIC 32-lead, Low-profile mm Plastic Quad Flat Package LQFP
24 AT43301

Packaging Information
32AA LQFP

AT43301

PIN 1 e

PIN 1 IDENTIFIER

B E1 E

A1 A2 L

This package conforms to JEDEC reference MS-026, Variation BBA. Dimensions D1 and E1 do not include mold protrusion. Allowable
protrusion is mm per side. Dimensions D1 and E1 are maximum plastic body size dimensions including mold mismatch. Lead coplanarity is mm maximum.

COMMON DIMENSIONS Unit of Measure = mm

SYMBOL MIN

NOTE

Note 2 Note 2
2325 Orchard Parkway R San Jose, CA 95131
32AA, 32-lead, 7 x 7 mm Body Size, mm Body Thickness, mm Lead Pitch, Low Profile Plastic Quad Flat Package LQFP
32AA
24S SOIC

PIN 1 ID

PIN 1
0º ~ 8º

COMMON DIMENSIONS Unit of Measure = mm

SYMBOL A A1 D D1 E B L L1 e

NOTE

TITLE 2325 Orchard Parkway R San Jose, CA 95131 24S, 24-lead body Plastic Gull Wing Small Outline SOIC
06/17/2002
26 AT43301

Atmel Corporation
2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 487-2600

Regional Headquarters

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived AT43301-AU Datasheet file may be downloaded here without warranties.

Datasheet ID: AT43301-AU 519018