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WF121

The Wi-Fi Module for IoT Applications

The WF121 is a stand-alone Wi-Fi module providing fully integrated 2.4 GHz 802.11 b/g/n radio, TCP/IP stack and a 32-bit microcontroller (MCU) platform for embedded applications requiring simple, low-cost and low-power wireless IP connectivity. It also provides flexible peripheral interfaces such as SPI, I2C, ADC, GPIO, and timers to connect various peripheral interfaces directly to the WF121 Wi-Fi module. The WF121 Wi-Fi module also allows end-user applications to be embedded onto the on-board 32-bit MCU, using a simple BGScript™ scripting language and free-of-charge development tools. This eliminates the need for and additional MCU and enables end-users to develop smaller and lower cost Wi-Fi devices. The WF121 can also be used in a modem-like mode in applications where the external MCU is needed. The 802.11 access point and HTTP server functionality are also included for easy configurations and direct connections with phones, tablets, and PCs. With an integrated 802.11 radio, antenna, single power supply, and CE, FCC, and IC regulatory certifications, the WF121 provides low-risk and fast time-to-market for applications requiring Wi-Fi connectivity.
 

Key Specs

 
Antenna
Chip Antenna
Flash
512
RAM
128
RX Sensititivy
-97
TX Power
+16
Package Size (mm)
15.4 x 26.2 x 2.0
Antenna
Chip Antenna
Flash
512
RAM
128
RX Sensititivy
-97
TX Power
+16
Package Size (mm)
15.4 x 26.2 x 2.0
Bluegiga Legacy Wi-Fi Modules Block Diagram

Quality Assurance, Environmental and Packaging Information

Silicon Labs targets a minimum of a 10-year lifecycle for all of its standard products and expects to produce the WF121 until at least March 2023.

The longevity date shown above is for the preferred revision of this part number, for a complete list of part number revisions, use the search button below.

As part of its ongoing commitment to supply continuity, Silicon Labs may provide pin-compatible and functionally equivalent replacement products if Silicon Labs determines, at its discretion, that supply chain adjustments, product improvements, market conditions, or similar business or technical issues make this necessary or advisable.

If for business, technical or other reasons beyond Silicon Labs’ reasonable control, Silicon Labs finds that it is necessary to discontinue a product, our policy is to issue an EOL notice that provides 6 months from notice to place final orders and 12 months from notice for final shipments. This policy complies with the JEDEC standard EIA/JESD48 that is commonly used in the semiconductor industry. We provide the required support for a product for its full life cycle.

Find and download additional quality, environmental, device composition, test results, shipping and supply chain information for Silicon Labs devices.

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