Ultra-Low-Power Dual Band Wi-Fi Module with Enterprise Reliability

The SX-ULPAN is an ultra-low-power Wi-Fi module with dual-band 802.11 a/b/g/n and industrial temperature support. This low power Wi-Fi module is based on QCA4004 radio from Qualcomm. Our close relationship with Qualcomm and other partners enables us to provide support for our modules that is not available elsewhere.

Silex IoT Connectivity Solutions Page

Top Features:

  • IEEE 802.11a/b/g/n-compliant Dual-Band Wi-Fi Radio (2.4/5 GHz)
  • Ultra-low-power Wi-Fi Module features QCA4004 Radio
  • On-Board U.FL Connector / Antenna, Surface Mount Module
  • IPv4 / iPv6, TCP and UDP Protocol Supported on Chip, Offloading the Host Controller
  • Wi-Fi Protected Setup Support
  • Arduino Shield EVK with MQX Driver Support
  • Tower EVK Module for NXP Tower System
  • Ideal for Internet of Things (IoT) Applications


SX-ULPAN will fi­nd its way into many IoT applications like remote equipment monitoring, asset tracking and telemetry, security, wireless audio, industrial sensors and controls, home automation, medical devices and others. Engineering samples and production quantities of our ultra-low-power Wi-Fi modules, the SX-ULPAN are now available.

Start your evaluation process by purchasing the evaluation kit for our QCA4004 based low power Wi-Fi module.

Features and Benefits:

  • Dual Band IEEE 802.11a/b/g/n Conformity (2.4 GHz & 5 GHz)
  • Supports Data Rates 1 - 54 Mbps for 802.11b/g, 6 - 54 Mbps for 802.11a and MCS0-6 for 802.11n
  • Supports Industrial Temperature
  • Ultra-low-power Wi-Fi module features QCA4004 Radio
  • Single Stream System (1x1) and 20MHz Channel Width
  • Supports SPI/UART as Host IF of Wireless LAN
  • Throughput upto 10Mbps for SPI Interface
  • Supports Rx Software Selection Diversity for Wireless LAN Mode
  • Calibrated Tx Power per Module
  • Hardware Supports Security such as WPS, WPA and WPA2
  • Supports on Chip IPv4, TCP and UDP Protocol
  • Selectable Onboard Printed Antenna and an U.FL Connector for an Add-on Antenna
  • NXP Tower EVK with MQX Driver Support
  • Ideal for Applications that require Low Power Wi-Fi for the Internet of Things

Silex IoT Connectivity Solutions Page

SX-ULPAN Dimensions

 Model Number






 Radio Specifications

802.11 a/b/g/n


Open System, WPA/WPA2-PSK

 Host Interface



 Operating Voltage

3.3 V


Operating 10 to 95 %RH

Storage: 15 to 95 %RH

 Operating Temperature

Continuous Tx/Rx: -40 to +75 °C

Periodic Tx/Rx: -40 to +85 °C


20.0 x 15.0 x 2.2 mm


1.50 +/- 0.1 g

Silex IoT Connectivity Solutions Page

Click on the content file below to download the latest documentation for your product.
Unless otherwise noted, the documentation is in PDF format and requires Adobe Acrobat Reader to view.


SPI Interface
UART Interface

 Hardware Specification


 Functional Specification


  Command Specification Guide 

  SPI Command & API Specification  

    UART Command Specification   

 Evaluation Kit





Contact Silex sales at for more information regarding the product and its documentation.

Silex IoT Connectivity Solutions Page

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