Qualcomm QCA4531 (R) Wi-Fi SoC QCA4531 is a low-cost, high performance, Linux connectivity hub for the Internet of Things (IoT). Solution Highlights The QCA4531 is a two stream (2x2) 802.11b/g/n single-band programmable Wi-Fi System-on-Chip (SoC) for the IoT. This low-cost turnkey solution combines highperformance connectivity capabilities with a user-programmable Linux OpenWrt environment and is designed to serve either as a feature-rich IoT node or as a hub to support an IoT ecosystem. Operates as a versatile, featurerich IoT node, access point, gateway or hub The QCA4531 is a single-chip access point SoC designed to deliver a highperformance 2x2 802.11b/g/n solution, as well as a powerful MIPS 24Kc CPU core that operates at up to a 650MHz clock rate. This system runs open source Linux and the OpenWrt networking stack, to help with ease of development. The QCA4531 includes a communications stack, including HTTP, IPv4v6, TCP, SSL, DHCP, ICMP, IGMP, and DNS. It is designed to operate as an IoT access point, supporting up to 16 simultaneous devices, and is power optimized to allow appliances to meet international standards for energy efficiency. To address fragmentation in the IoT, the QCA4531 supports multiple application layer interoperability standards, allowing products to connect across different brands and platforms. The QCA4531 is ideal for IoT hubs that bridge from other IoT connectivity technologies like Bluetooth, 802.15.4 (ZigBee/ Thread) and Z-Wave to the home Wi-Fi network. It contains interfaces that allow attachment of Bluetooth/802.15.4/Z-Wave radios, plus the Linux environment supports the development of bridging software. Materials are subject to change without notice. 87-YB662-1 Rev B Multi-protocol bridging and communication brings together multiple wireless mediums and bridges between different ecosystems. Single chip solution with extended range and reliability Incorporates 802.11n 2x2 single-band Wi-Fi technology and extended wireless range, providing greater coverage, quality of service and reliability of connectivity. Optimized power and energy efficiency for high performance IoT gateways Integrates a powerful 650MHz MIPS CPU for embedded applications, plus a 1+4 Fast Ethernet switch along with other expansive interfaces for IoT devices. Open source OS and tools to simplify software development Embeds OpenWrt, Linux OS and open source Wi-Fi drivers for simplifying software development. QCA4531 is a product of Qualcomm Technologies, Inc. and/or its subsidiaries. QCA4531 Target IoT Applications * Energy Management * Smart Home * Wi-Fi Repeater * Smart Appliances * Residential Lighting * IoT Gateway QCA4531 Block Diagram Features 802.11n 2x2 improves range and quality of service MIPS 24Kc processor operating at up to 650MHz clock rate Advanced power management with dynamic clock switching for ultra-low power modes DDR2 NAND SPI flash memory manager I2C for connecting to digital sensors and Apple HomeKit MFi chip 12 customizable GPIOs Commercial & industrial temperature options OpenWrt QDSK and open source ATH9K drivers QCA4531 SoC and Module Specifications Package Type Low cost system BOM including: Integrated LNA and +20 dBm PA Module Size QFN package and 4-layer PCB design 12 x 12mm QFN Dual-Row 156-pin halogen-free, RoHS compliant 44.3 x 33.5 x 6.2mm, 4 layer PCB (including PCB antenna & 2x 1-PEX connectors) 3.3V external power source WLAN Technology External 16-bit DDR1, operating at up to 200MHz, DDR2 operating at up to 300MHz (600 M transfers/sec) Antennas 2x 2.4GHz outputs Interfaces 1x DDR, PCIE, UART, I2C, USB 2.0 Host 12x GPIOs, JTAG 1+4 (5-port) Fast Ethernet switch Software support for Apple HomeKit, Google Weave, Open Connectivity Foundation and AllJoyn from the AllSeen Alliance Complete AllJoyn integration client and services implementation Ordering Information Product Part Number QCA4531 (C-Temp) QCA4531-BL3A QCA4531 (I-Temp) QCA4531-BL3B Frequency Band 2.4GHz Channel Bandwidth 20 or 40MHz Power Source 3.3V nominal Throughput Default Memory Operating System To learn more visit: qualcomm.com 802.11b/g/n Operating Temperature 2x2 802.11n - 190Mbps (TCP/IP) 64MB DDR; 1GB NAND SPI flash 1x 4MB NOR flash OpenWrt, Embedded Linux Commercial: 0 to +70C Industrial: -40 to +85C (c)2018 Qualcomm Technologies, Inc. All Rights Reserved. Qualcomm is a trademark of Qualcomm Incorporated, registered in the United States and other countries. Other product and brand names may be trademarks or registered trademarks of their respective owners. 0418A