Low power 802.11abgn SDIO/SPI(65Mbps)


Redpine’s Lite-Fi™ family of ultra low power Wi-Fi® processors provides unprecedented power profiles for 802.11n. The RS9110 is Redpine’s third generation low power product addressing the mobile and portable markets

The RS9110 uses advanced system-level power management techniques and reduces the power BoM significantly. The RS9110 is packaged in WLCSP and UFLGA. The WLCSP (0.35mm thickness) enables Micro SD and SiP 802.11n modules for the mobile market.


  • Ultra low power 802.11abgn 1x1 MAC/BB processor with STBC support for VoWiFi enabled mobile handsets, consumer electronics and PNDs
  • Extensive, patented low-power techniques to minimize power consumption
  • Full throughput SDIO v1.2/2.0, SPI and EBI host interfaces
  • Zero host overhead architecture with proprietary processor core
  • Advanced 802.11e-based QoS support, including WMM and WMM-PS
  • Bluetooth co-existence support
  • Available in WLCSP & UFLGA packages
  • Benefits
  • Applications
  • Specifications


  • Robust multipath performance and extended range using STBC
  • Higher throughput with 802.11n MAC enhancements
  • Minimal battery utilization during VoIP, media streaming and data transfer use cases
  • On-chip memory to enable customer-specific software differentiation and provide lowest BOM
  • Ease of system integration and minimal use of host resources
  • Wi-Fi ® and Bluetooth throughputs maximized using innovative coexistence algorithms
  • Small system footprint to enable compact, low-cost designs


  • Multi-mode cellular phones, smart phones, and PDAs needing Wi-Fi capability
  • VoWiFi/VoIP handsets
  • Personal Navigation Devices
  • Media nodes and players with MP3 music and MPEG4 video support
  • Digital still cameras and camcorders
  • Mobile gaming platforms with peer-to-peer capability


  • IEEE 802.11a/b/g/h/i/j, Draft 802.11 n/k/r
  • 802.11n: 6.5, 13, 19.5, 26, 39, 52, 58.5, 65 Mbps
    802.11a/g: 6, 9, 12, 18, 24, 36, 48, 54 Mbps
    802.11b: 1, 2, 5.5, 11 Mbps
  • OFDM with BPSK, QPSK, 16-QAM, and 64-QAM 802.11b with CCK and DSSS
  • WMM and WMM Power Save Support
  • 802.11i: AES, TKIP, WEP, WPA, and WPA2
  • MCS 0-7, STBC, RIFS,Greenfield Protection, A-MPDU, A-MSDU Aggregation with Block-ack, PSMP, MTBA
  • SDIO v1.2/2.0, SPI, Memory-mapped interface (EBI)
  • 9.6, 13, 19.2, 26, 38.4, 40, 52 MHz
  • Core VDD 1.2V ± 10% IO VDD 3.3V ± 10%
  • Industrial Grade -40ºC to +85ºC
  • Wi-Fi (WPA, WPA2, WMM, WMM Power-save, WPS,11n Draft 2.0)