ar9331 datasheet, PDF - EEWORLD Datasheet

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ar9331: CategoryModule/solution; File Size3MB，320 Pages; ManufacturerAll Sensors

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Data Sheet

PRELIMINARY

December 2010

AR9331 Highly-Integrated and Cost Effective IEEE 802.11n

1x1 2.4 GHz SoC for AP and Router Platforms

General Description

The Atheros AR9331 is a highly integrated and

cost effective IEEE 802.11n 1x1 2.4 GHz System-

on-a-Chip (SoC) for wireless local area network

(WLAN) AP and router platforms.

In a single chip, the AR9331 includes a MIPS 24K

processor, five-port IEEE 802.3 Fast Ethernet

Switch with MAC/PHY, one USB 2.0 MAC/PHY,

and external memory interface for serial Flash,

SDRAM, DDR1 or DDR2, I

S/SPDIF-Out audio

interface, SLIC VOIP/PCM interface, UART, and

GPIOs that can be used for LED controls or other

general purpose interface configurations.

The AR9331 integrates two Gbit MACs plus a

five-port Fast Ethernet switch with a four-traffic

class Quality of Service (QoS) engine.

The AR9331 integrates an 802.11n 1x1 MAC/BB/

radio with internal PA and LNA. It supports

802.11n operations up to 72 Mbps for 20 MHz

and 150 Mbps for 40 MHz channel respectively,

and IEEE 802.11b/g data rates. Additional

features include on-chip one-time programmable

(OTP) memory.

Features

■

Complete IEEE 802.11n 1x1 AP or router in a

■

single chip

MIPS 24K processor operating at up to

400 MHz

External 16-bit DDR1, DDR2, or SDRAM

memory interface

SPI NOR Flash memory support

No external EEPROM needed

4 LAN ports and 1 WAN port IEEE 802.3 Fast

Ethernet switch with auto-crossover, auto

polarity, and auto-negotiation in PHYs

Four classes of QoS per port

Fully integrated RF front-end including PA

and LNA

Optional external LNA/PA

Switched antenna diversity

High-speed UART for console support

S/SPDIF-out audio interface

SLIC for VOIP/PCM

USB 2.0 host/device mode support

GPIO/LED support

JTAG-based processor debugging supported

25 MHz or 40 MHz reference clock input

Advanced power management with dynamic

clock switching for ultra-low power modes

148-pin, 12 mm x 12 mm dual-row LPCC

package

System Block Diagram

2.4 GHz

Front

End

802.11n

1x1 WLAN

MAC/BB/

Radio

Internal

SRAM

I-Cache

D-Cache

SDRAM/

DDR1/DDR2

Controller and

NOR Flash

Memory

Interface

Serial Flash and SDRAM/DDR Interface

5x Fast Ethernet

LAN/WAN Ports

UART

USB MAC/PHY

External Interface

5x Fast Ethernet Ports

UART Interface

USB 2.0 Interface

GPIOs/LEDs

Audio Interface

VOIP/PCM

25 or 40 MHz Crystal

AR9331

MIPS 24K

Processor

S/SPDIF

SLIC

Orion® , PLC4Trucks®, Powerpacket®, Spread Spectrum Carrier®, SSC®, ROCm®, Super A/G®, Super G®, Super N®, The Air is Cleaner at 5-GHz®, Total 802.11®, U-

Nav®, Wake on Wireless®, Wireless Future. Unleashed Now.®, and XSPAN®, are registered by Atheros Communications, Inc. Atheros SST™, Signal-Sustain Technology™,

Ethos™, Install N Go™, IQUE™, ROCm™, amp™, Simpli-Fi™, There is Here™, U-Map™, U-Tag™, and 5-UP™ are trademarks of Atheros Communications, Inc. The

Atheros logo is a registered trademark of Atheros Communications, Inc. All other trademarks are the property of their respective holders. Subject to change without notice.

COMPANY CONFIDENTIAL

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	ar9331
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