AR9341-AL1A AR9342-BL1A
AR9341 Highly-Integrated and Feature-RICh IEEE 802.11n 2x2
2.4 GHz Premium SoC for Advanced WLAN Platforms
General Description
The Atheros AR9341 is a highly integrated and
feature-rich IEEE 802.11n 2x2 2.4 GHz Systemon-
a-Chip (SoC) for advanced WLAN platforms.
It includes a MIPS 74Kc 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, I2S/SPDIF-Out audio interface, SLIC
VOIP/PCM interface, two UARTs, and GPIOs
that can be used for LED controls or other
general purpose interface configurations.
The AR9341 supports 802.11n operations up to
144 Mbps for 20 MHz and 300 Mbps for 40 MHz
respectively, and 802.11b/g data rates.
Additional features include Maximal Likelihood
(ML) decoding, Low-Density Parity Check
(LDPC), Maximal Ratio Combining (MRC), Tx
Beamforming (TxBF), and On-Chip One-Time
Programmable (OTP) memory.
The AR9341 supports booting from NOR flash.
When connecting the AR9341 to an external host
through the USB Device interface, the AR9341
can offload the host CPU from computationintensive
functions, allowing it to focus on its
dedicated tasks.
Features
■ 74Kc MIPS processor with 64 KB I-Cache and
32 KB D-Cache, operating at up to 533 MHz
■ External 16-bit DDR1, DDR2 operating at up
to 200 MHz (400 M transfers/sec), or 16-bit
SDRAM memory interface operating at up to
200 MHz
■ SPI NOR Flash memory support
■ 10/100 Ethernet Switch with five IEEE 802.3
Ethernet LAN ports
■ 802.3az Energy Efficient Ethernet compliant
■ Hardware-based NAT & ACL accelerators for
Ethernet interface
■ One USB 2.0 controller with built-in MAC/
PHY supports Host or Device mode
■ Boot from external CPU via USB, eliminating
need for external flash
■ I2S/SPDIF-out audio interface
■ SLIC for VOIP/PCM
■ One low-speed UART (115 Kbps), one highspeed
UART (3 Mbps), and multiple GPIO
pins for general purpose I/O
■ Fully integrated RF Front-End including PAs
and LNAs
■ Optional external LNA/PA
■ 25 MHz or 40 MHz reference clock input
■ 1.2 V switching regulator
■ Advanced power management with dynamic
clock switching
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深圳斯普仑科技有限公司
Shenzhen Spring Technology Co.,Ltd
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