{"id":8495,"date":"2026-06-29T02:54:37","date_gmt":"2026-06-29T02:54:37","guid":{"rendered":"https:\/\/materialparts.com\/bluenrg-248\/"},"modified":"2026-06-29T06:28:09","modified_gmt":"2026-06-29T06:28:09","slug":"bluenrg-248","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/bluenrg-248\/","title":{"rendered":"BLUENRG-248"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The BLUENRG-248 from STMicroelectronics is a Bluetooth Low Energy (BLE) 5.0 wireless system-on-chip with 256 kB Flash and 24 kB RAM in a QFN-32 (5×5 mm) package. Based on an ARM Cortex-M0+ core, it provides a complete BLE radio and protocol stack with up to +8 dBm output power and -96 dBm receiver sensitivity for extended range IoT applications.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u6838\u5fc3<\/td>\nARM Cortex-M0+, 32-bit<\/td>\n<\/tr>\n
Flash Memory<\/td>\n256 kB<\/td>\n<\/tr>\n
RAM<\/td>\n24 kB<\/td>\n<\/tr>\n
BLE Version<\/td>\n5.0 qualified<\/td>\n<\/tr>\n
Output Power<\/td>\nUp to +8 dBm (programmable)<\/td>\n<\/tr>\n
Receiver Sensitivity<\/td>\n-96 dBm (BLE 1 Mbps)<\/td>\n<\/tr>\n
Frequency Range<\/td>\n2.4 GHz ISM band<\/td>\n<\/tr>\n
Link Budget<\/td>\n104 dB (typical)<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n1.7V to 3.6V<\/td>\n<\/tr>\n
Tx Current<\/td>\n10.3 mA @ +8 dBm<\/td>\n<\/tr>\n
Rx Current<\/td>\n7.3 mA<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nQFN-32 (5 x 5 x 0.85 mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Complete BLE 5.0 radio and stack in single chip<\/li>\n
  • Up to +8 dBm output power for extended range<\/li>\n
  • 256 kB Flash with 24 kB RAM for application and stack<\/li>\n
  • ARM Cortex-M0+ core for application processing<\/li>\n
  • SPI, I2C, UART, and GPIO peripherals<\/li>\n
  • Embedded BLE stack with master and slave support<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Beacons and proximity tags<\/li>\n
    • Wireless sensor networks<\/li>\n
    • Smart home and building automation<\/li>\n
    • Wearable health and fitness devices<\/li>\n
    • Industrial IoT edge nodes<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The BLUENRG-248 from STMicroelectronics is a Bluetooth Low Energy (BLE) 5.0 wireless system-on-chip with 256 kB Flash and 24 kB RAM in a QFN-32 (5×5 mm) package. Based on an ARM Cortex-M0+ core, it provides a complete BLE radio and protocol stack with up to +8 dBm output power and -96 dBm receiver […]<\/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":[],"chip_brand":[142],"class_list":["post-8495","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-st"],"acf":{"brief_explanation":"BLE 5.0 SoC, Cortex-M0+, 256kB Flash, +8dBm, -96dBm, QFN-32 5x5mm","date_code":"","package_case":"QFN-32 (5 x 5 x 0.85 mm)","in_stock":11118,"datasheet":"https:\/\/www.st.com\/en\/wireless-connectivity\/bluenrg-248.html","price":"$2.80 @ 1ku","product_introduction":"The STMicroelectronics BLUENRG-248 is a Bluetooth Low Energy 5.0-qualified wireless system-on-chip integrating an ARM Cortex-M0+ processor, 256 kB Flash memory, 24 kB RAM, and a complete BLE radio transceiver in a compact QFN-32 package. With programmable output power up to +8 dBm and receiver sensitivity of -96 dBm, it achieves a 104 dB link budget for extended range applications. The 256 kB Flash accommodates both the BLE protocol stack and user application code, while the 24 kB RAM supports simultaneous master and slave connections. The device is designed for low-power operation with 10.3 mA Tx current at +8 dBm and 7.3 mA Rx current, enabling coin-cell and energy-harvesting powered designs.","working_principle":"The BLUENRG-248 integrates a complete BLE radio and protocol stack on a single chip. The ARM Cortex-M0+ core runs at up to 32 MHz, executing both the BLE link layer and the user application from the 256 kB Flash. The BLE radio transceiver operates in the 2.4 GHz ISM band using frequency hopping across 40 channels (3 advertising + 37 data channels). The radio supports BLE data rates of 1 Mbps and 2 Mbps (BLE 5.0 high-speed mode). The embedded BLE stack handles advertising, scanning, connection establishment, and data exchange according to the BLE specification. The link layer manages packet formatting, CRC generation\/checking, data whitening, and AES-128 encryption for secure connections. The +8 dBm output power is achieved through an integrated power amplifier with programmable gain, while the -96 dBm sensitivity comes from a low-noise receiver front-end with integrated LNA. Sleep modes reduce current to sub-microamp levels between connection events.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>VDD<\/td>Digital Supply (1.7-3.6V)<\/td><\/tr>
      2-5<\/td>GPIO[3:0]<\/td>General Purpose I\/O \/ SPI\/I2C\/UART<\/td><\/tr>
      6<\/td>VDD_RF<\/td>RF Supply (1.7-3.6V)<\/td><\/tr>
      7<\/td>RF_IN\/OUT<\/td>RF Antenna Connection<\/td><\/tr>
      8<\/td>VDD_RF2<\/td>RF Supply (1.7-3.6V)<\/td><\/tr>
      9-16<\/td>GPIO[11:4]<\/td>General Purpose I\/O with alternate functions<\/td><\/tr>
      17<\/td>RESET<\/td>Reset Input (active low)<\/td><\/tr>
      18-25<\/td>GPIO[19:12]<\/td>General Purpose I\/O with alternate functions<\/td><\/tr>
      26<\/td>SWDIO<\/td>Serial Wire Debug Data<\/td><\/tr>
      27<\/td>SWCLK<\/td>Serial Wire Debug Clock<\/td><\/tr>
      28-31<\/td>GPIO[23:20]<\/td>General Purpose I\/O<\/td><\/tr>
      32<\/td>GND<\/td>Ground<\/td><\/tr><\/table>","application_scenarios":"
      • Beacon \/ Proximity<\/b>: +8 dBm output power extending beacon range to 100m+ for asset tracking and indoor positioning applications<\/li>
      • Wireless Sensor Node<\/b>: Low-power sleep modes between BLE connection events enabling years of operation from a CR2032 coin cell<\/li>
      • Smart Home<\/b>: BLE 5.0 long-range mode (125\/500 kbps coded PHY) for smart locks, thermostats, and lighting controllers<\/li>
      • Wearable Health<\/b>: 24 kB RAM supporting simultaneous master\/slave connections for heart rate monitor with phone and sensor connections<\/li>
      • Industrial IoT<\/b>: 256 kB Flash hosting both BLE stack and Modbus-over-BLE application in a single-chip gateway edge node<\/li><\/ul>","alternative_models":"
        Model<\/th>Brand<\/th>BLE<\/th>Flash<\/th>Pout (dBm)<\/th><\/tr>
        BLUENRG-235<\/td>ST<\/td>5.3<\/td>256 kB<\/td>+8<\/td><\/tr>
        nRF52832-QFAA<\/td>Nordic<\/td>5.0<\/td>512 kB<\/td>+4<\/td><\/tr>
        CC2640R2FRHBR<\/td>TI<\/td>5.0<\/td>128 kB<\/td>+5<\/td><\/tr>
        DA14531-00000T2<\/td>Dialog<\/td>5.1<\/td>32 kB<\/td>+2.3<\/td><\/tr>
        SKY66112-11<\/td>Skyworks<\/td>5.0 FEM<\/td>-<\/td>+20<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8495","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=8495"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8495\/revisions"}],"predecessor-version":[{"id":8496,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8495\/revisions\/8496"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=8495"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=8495"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=8495"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=8495"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}