{"id":9742,"date":"2026-07-05T09:59:31","date_gmt":"2026-07-05T09:59:31","guid":{"rendered":"https:\/\/ic-vendor.com\/wfm200ss22xnn3r\/"},"modified":"2026-07-05T09:59:31","modified_gmt":"2026-07-05T09:59:31","slug":"wfm200ss22xnn3r","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/wfm200ss22xnn3r\/","title":{"rendered":"WFM200SS22XNN3R"},"content":{"rendered":"<h2>\u4ea7\u54c1\u6982\u89c8<\/h2>\n<p>The WFM200SS22XNN3R from Silicon Labs is a Wi-Fi NCP (Network Co-Processor) module supporting 802.11 b\/g\/n in the 2.4GHz band. It provides a complete Wi-Fi subsystem with integrated antenna, RF front-end, and TCP\/IP stack accessible via a simple UART or SPI host interface. The module is pre-certified (FCC\/IC\/CE) for rapid integration into IoT devices.<\/p>\n<h2>\u4e3b\u8981\u89c4\u683c<\/h2>\n<ul>\n<li>Type: Wi-Fi NCP Module (Network Co-Processor)<\/li>\n<li>Wi-Fi Standard: 802.11 b\/g\/n<\/li>\n<li>Frequency: 2.4GHz<\/li>\n<li>Interface: UART \/ SPI to host MCU<\/li>\n<li>Antenna: Integrated (PCB trace or ceramic)<\/li>\n<li>TX Power: Up to +18dBm<\/li>\n<li>Security: WPA2\/WPA3, TLS\/SSL<\/li>\n<li>TCP\/IP Stack: On-module (offloaded from host)<\/li>\n<li>Supply Voltage: 3.0-3.6V<\/li>\n<li>Current: 180mA (TX), 60mA (RX), 10uA (sleep)<\/li>\n<li>Package: SMD module<\/li>\n<li>Operating Temp: -40C to +85C<\/li>\n<li>Certifications: FCC, IC, CE, MIC (pre-certified)<\/li>\n<\/ul>\n<h2>\u7279\u70b9<\/h2>\n<ul>\n<li>Pre-certified Wi-Fi module eliminates RF design and certification<\/li>\n<li>On-module TCP\/IP stack offloads host MCU<\/li>\n<li>Simple UART\/SPI host interface<\/li>\n<li>Integrated antenna for compact design<\/li>\n<li>802.11n support for up to 72Mbps PHY rate<\/li>\n<li>WPA3 security support<\/li>\n<\/ul>\n<h2>\u5e94\u7528<\/h2>\n<ul>\n<li>Smart home devices and appliances<\/li>\n<li>Industrial IoT wireless connectivity<\/li>\n<li>Smart metering and energy management<\/li>\n<li>Healthcare device Wi-Fi connectivity<\/li>\n<li>Building automation and HVAC control<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Product Overview The WFM200SS22XNN3R from Silicon Labs is a Wi-Fi NCP (Network Co-Processor) module supporting 802.11 b\/g\/n in the 2.4GHz band. It provides a complete Wi-Fi subsystem with integrated antenna, RF front-end, and TCP\/IP stack accessible via a simple UART or SPI host interface. The module is pre-certified (FCC\/IC\/CE) for rapid integration into IoT devices. [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[1012],"chip_brand":[177],"class_list":["post-9742","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","tag-wfm200ss22xnn3r","chip_brand-silicon-labs"],"acf":{"brief_explanation":"Wi-Fi NCP module, 802.11b\/g\/n, UART\/SPI, integrated antenna, pre-certified, Silicon Labs","date_code":"","package_case":"SMD module","in_stock":6335,"datasheet":"https:\/\/www.silabs.com\/wireless\/wi-fi\/wfm200-wi-fi-ncp","price":"$6.00 @ 1ku","product_introduction":"The WFM200SS22XNN3R from Silicon Labs is a pre-certified Wi-Fi NCP module with 802.11b\/g\/n, integrated antenna, on-module TCP\/IP stack, and UART\/SPI host interface for IoT wireless integration.","working_principle":"The WFM200 operates as a Network Co-Processor (NCP), handling all Wi-Fi and TCP\/IP processing independently from the host MCU. The host sends high-level socket commands over UART or SPI, and the module manages 802.11 MAC, RF transceiver, and TCP\/IP stack autonomously.","pin_description":"<table><tr><th>Pin<\/th><th>Name<\/th><th>Function<\/th><\/tr><tr><td>1<\/td><td>VDD<\/td><td>Power supply (3.0-3.6V)<\/td><\/tr><tr><td>2<\/td><td>GND<\/td><td>Ground<\/td><\/tr><tr><td>3<\/td><td>UART_TX\/SPI_MOSI<\/td><td>Host interface data<\/td><\/tr><tr><td>4<\/td><td>UART_RX\/SPI_MISO<\/td><td>Host interface data<\/td><\/tr><tr><td>5<\/td><td>UART_CTS\/SPI_CLK<\/td><td>Host interface control\/clock<\/td><\/tr><tr><td>6<\/td><td>UART_RTS\/SPI_CS<\/td><td>Host interface control\/select<\/td><\/tr><tr><td>7<\/td><td>RST<\/td><td>Module reset (active low)<\/td><\/tr><tr><td>8<\/td><td>WAKE<\/td><td>Host wake-up<\/td><\/tr><\/table>","application_scenarios":"<ul><li>Smart home device Wi-Fi connectivity<\/li><li>Industrial IoT wireless monitoring<\/li><li>Smart metering and energy management<\/li><li>Healthcare device wireless link<\/li><\/ul>","alternative_models":"<table><tr><th>Model<\/th><th>Manufacturer<\/th><th>Spec1<\/th><th>Spec2<\/th><\/tr><tr><td>IS4163-0-LA44<\/td><td>Inventek<\/td><td>Wi-Fi NCP<\/td><td>UART\/SPI<\/td><\/tr><tr><td>ATWINC1500-MR210PB<\/td><td>Microchip<\/td><td>Wi-Fi NCP<\/td><td>SPI<\/td><\/tr><tr><td>ESP32-WROOM-32D<\/td><td>Espressif<\/td><td>Wi-Fi+BLE<\/td><td>UART\/SPI<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/9742","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/comments?post=9742"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/9742\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=9742"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=9742"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=9742"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=9742"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}