ISM43340-L77 Dual band (2.4 / 5GHz) Wi-Fi, Bluetooth & BLE SiP Module


The ISM43340-L77 quad-radio device provides the highest level of integration for wireless system, with integrated dual band (2.4 GHz/ 5 GHz) Wi-Fi, IEEE 802.11 a/b/g/n single-stream, MAC/baseband/radio, Bluetooth 4.0 for Linux processors with SDIO interfaces.
The FCC/CE/IC module includes integrated power amplifiers, LNAs and T/R switches for the 2.4 GHz and 5 GHz WLAN bands, greatly reducing the external part count, 13mm x 14.4mm PCB footprint, and low cost of the solution.

Product Specifications

This product is intended for embedded Linux/ Android applications running on qualified Host processors with a SDIO interface. This product is targeted at high volume designs with experienced Linux / Android customers. A Software License Agreement is required for Driver support.

Product Overview

  • Wi-Fi standards, speeds and security:
    • 802.11 a/b/g/n with speeds up to 72Mbps
    • WEP(64/128-bit), WPA, WPA2 (Personal), 802.11i (AES, TKIP, 802.1x)
  • System-in-Package design, no need for external crystal oscillators or RF switches
  • Single supply voltage of 3.3VDC ±5%
  • 77 pin LGA package (13.3mm x 14.5 mm, 2 mm)
  • FCC/CE/Wi-Fi certified based on following Inventek reference design
  • Shared Single and dual-antenna support
  • WLAN host interface :4-bit SDIO for easy host interfacing
  • BT host digital interface (can be used concurrently with above interface): UART (up to 4 Mbps)
    • HCI high-speed UART (H4, H4 +, H5) transport support
    • Bluetooth Low Energy (BLE) support


The ISM43340-L77 has been FCC/CE/UL  certified with two Inventek antenna’s.  The Dual band  Chip antenna  P/N W24-SC    or the external dual band PCB antenna W24-5PU antenna.

The ISM43340-L77 is recommended for Linux applications as well as virtual WICED designs.  The following gerbers can be used to copy our antenna design or possible a virtual WICED connected to a STM32F405 processor design.

ISM4334x_REFERENCE_GERBERS>Gerbers Download .zip

The ISM43340-L77 is supported with the open Linux FMAC drivers. Inventek has ported and tested the Broadcom DHD  drivers on the TI Beagle Bone Black, NXP i.MX6 and Atmel ARM 9 processor.

All new support is done with FMAC drivers from Cypress supporting the ISM43340-L77 device id:

43340 0xA94C Supported in v4.14 Cypress FMAC package.

v4.12-2018_0205   Release Date    2018-02-05


This is Cypress’s Linux brcmfmac driver and firmware support package. download v4.12-2018.  is an open-source driver project.

Backports package (cypress-backports-v4.12_2017_1030-module-src.tar.gz)

Firmware/clm_blob files (cypress-firmware-v4.12-2017_1122.tar.gz)

Cypress fmac patch files (cypress-patch-v4.12_2017_1030.tar.gz)

Device tree files (cypress-devicetree-v4.11_2017_0818.tar.gz)


Here are some support Links.


NXP i.MX6 Ultralite Linux

Texas Instrument AM355xx-Sitara BBB

MCIMX6UL-EVK with the Inventek ISM43362 radio

Contact Inventek for EMC Radio Certification documents

Radio Only SIP Summary

Please contact Inventek for the latest Linux Kernel.

Evaluation Boards

The SDIO board plugs directly into the SDIO socket on the TI BBB, Atmel ARM 9 and NXP  imX6.  We recommend that you purchase the EVB’s with two SDIO slots for development. One for the Wi-Fi and the other one for memory cards or other

Rocky Mini ISM43341-L77 EVB

Applications & Uses

  • M2M (Machine-to-Machine)
  • Industrial Handheld Devices
  • Asset/Inventory Management
  • POS Terminals
  • Medical Equipment
  • Wi-Fi Enabled Security Cameras

Buy Online from  our Valued Distributors

Buy IMS43340-L77 from Digi-key

Buy ISM43340-L77 from Arrow

Buy ISM43340-L77 from Avnet

Buy ISM43340-L77 SDIO Evaluation Kits from Digi-key

Contact Inventek

We are looking forward to answering all your inquiries regarding sales, technical and customer support, distribution volume pricing and delivery options
Contact Inventek