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GainSpan GS2011MIx Low-Power 802.11b/g/n Wi-Fi Module - Up to 72Mbps

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 Product Description

The GS2011M module provides a quick, easy, and cost effective way for device and appliance manufacturers to add Wi-Fi connectivity to their products. The module provides a high speed serial interface connection to an embedded design built on an 8/16/32-bit microcontroller, achieving up to 40 Mbps throughput over an SDIO interface.

The GS2011M is an ideal solution for organizations with limited Wi- Fi or RF expertise or for those seeking faster time to market, as it reduces RF design time and removes the burden of testing and certification. The module is IEEE 802.11b/g/n compliant, and meets worldwide regulatory and Wi-Fi Alliance certification requirements.

The module includes two analog to digital converter (ADC) pins for connecting energy measurement and other sensors. It runs the full Wi-Fi and TCP/IP networking stacks on module, completely offloading the host microcontroller. The module supports a complete suite of security protocols, also without tasking the host microcontroller, including WPA/WPA2-Enteprise and Personal security modes, legacy WEP encryption, and upper layer security protocols such as TLS/SS and HTTPs. Alternatively, it can be run self-contained without a host.

For ease of provisioning, the module can be set up simply and easily from a smartphone or laptop through the innovative Limited AP mode or with Wi-Fi Protected Setup (WPS). 

The GS2011M has extended range with industry leading receiver sensitivity and is available with a u.FL connector to add an external antenna for max performance or a ceramic chip antenna for performance and convenience while saving space. US/Canada (FCC /IC), Europe (ETSI) and Japan (TELEC) certified.


Features & Benefits

  • 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 to GS1011M and GS1500M 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 (Standby, Sleep, Deep Sleep)
  • Extended range
  • IEEE 802.11 b/g/n connectivity with PHY rates up to 72 Mbps
  • UART, SPI, SDIO interface to microcontroller
  • Throughput (typical)
    • 40 Mbps on SDIO
    • 30 Mbps on SPI (master)
    • 12 Mbps on SPI (slave)
    • 1 Mbps on UART
  • Extensive networking stack and services
  • Security
    • 802.11i
    • WPA/2–Personal and Enterprise
    • Legacy WEP
    • TLS
  • Power source:
    • 3.3V main supply
    • 1.8V, 3.3V I/O
    • 1.6V to 3.6V Battery
  • Certification: FCC, IC, ETSI, TELEC, Wi-Fi
  • I/O interfaces : SPI, UART, SDIO, I2C, I2S, GPIO, ADC


Part Number Description
GS2011MIE Low power module with external antenna (U.FL)
GS2011MIZ Low power module with ceramic antenna





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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