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GainSpan GS2011MIPS Compact, Low-Power 802.11b/g/n Wi-Fi Module - Up to 72Mbps

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 Product Description



  • IEEE 802.11b/g/n Wi-Fi module
  • GS2000 based module with lowest power consumption
  • Compact size - 19.4mm x 28.7mm x 3.35mm (shield)
  • Footprint compatible with GS1011MIPS/ MIES modules

The GS2011MxxS family of size-optimized modules is designed for battery powered applications, as it includes a 1.8 V regulator. It provides a quick, easy and cost-effective way for manufacturers to add low power Wi-Fi connectivity to their products.

The GS2011MxxS module can be used in a hostless mode (no external MCU), or hosted mode where it connects to any 8/16/32-bit host microcontroller using UART, SPI or SDIO interfaces.

In hostless mode, the module runs the full Wi-Fi and TCP/IP networking stack. It supports a complete suite of security protocols, including WPA/WPA2-Enterprise and Personal security modes, and upper layer security protocols such as TLS/SSL, embedded DHCP client and server, DNS and HTTP(S) clients and servers, XML parser, service and device discovery, easy provisioning, over-the-air firmware updates, and more. This provides customers to design the most cost effective solution by writing their application on the GS2011MxxS module thereby eliminating the need for an external microcontroller.

In hosted mode, the module provides industry's most comprehensive AT command library for all Wi-Fi related functions which can be easily accessed by any 8/16/32 bit microcontroller over standard serial interface. This provides the easiest and fastest time to market solution for customers to add Wi-Fi to their embedded designs without having to master the complexities of wireless communication protocols.

The module can be easily provisioned/commissioned from a smartphone or laptop through numerous methods including the patented Limited AP mode or Concurrent mode provisioning, Wi-Fi Protected Setup (WPS), secure group provisioning, QR code, WeChat and iOS provisioning.

The module is single sided with castellation on the edges for soldering it down on the product's baseboard. It is available with an u.FL connector to add an external antenna for max performance or a or a PCB trace antenna for low cost, and convenience while saving space.

The module is an ideal solution for organizations with limited Wi-Fi or RF expertise or for those seeking faster time to market. It is IEEE 802.11b/g/n compliant, and meets Wi-Fi Alliance certification requirements. All modules are also certified for US/Canada (FCC /IC), Europe (ETSI) and Japan (TELEC).



  • Adds low power, high speed Wi-Fi and Internet connectivity to any device with a microcontroller and serial host interface
  • Certified module reduces development time, testing, and certification, accelerating time to market
  • Easy upgrade path: footprint and pin compatible with GS1011MxxS modules
  • Full offload solution minimizes load on host processor
  • Easy smartphone provisioning with Limited AP or Wi-Fi Protected Setup (WPS)
  • Ultra low power consumption through dynamic power management modes and on module DC to DC regulator


  • IEEE 802.11 b/g/n connectivity with PHY rates up to 72 Mbps
  • Limited AP, Wi-Fi Direct, Concurrent mode, WPS 2.0
  • UART, SPI, SDIO interface to microcontroller
  • 24 configurable I/O
  • Interface clock rate: 40 MHz on SDIO, 30 MHz on SPI (master), 10 MHz on SPI (slave), and 921k baud on UART
  • Extensive networking stack and services
  • Security: 802.11i, WPA/2–Personal and Enterprise, legacy WEP, TLS







Dual-Core Processors Two 32-bit ARM7 CPU @44MHz
1 for applications (APP) : 1 dedicated to radio (WLAN)
On Board Memory RAM 128KBytes , FLASH 384KBytes, ROM 80KBytes
Radio (Data Rates) 802.11 (Wi-Fi) b/g compatible
Rates Supported: 11, 5.5, 2 and 1 Mbps (CCK/QPSK/BPSK Modulation)
Security 802.11i (WPA2 - PSK, WPA, WEP), Authentication, AES Encryption
RF Power 9dbm typical (estimate)
Range 50-70M Indoor, 200-300M+ Outdoor (Typical Estimate)
Operating Temp Range -40 to +85 °C industrial temp
Location Awareness RSSI
Software Protocol Support TCP/IP, UDP, SNMP, RTOS
*Standby State
with RTC
1- 5uA depends on voltage on RTC *lowest power state
Package 10 x 10 x 0.85 mm; 102-pin dual row QFN; RoHS compliant
Pin and Package compatible with GS1010
I/Os UART (2), I2C, SPI (2), ADC (2), PWM (3), GPIO (32)

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