{"id":6256,"date":"2026-06-12T10:11:04","date_gmt":"2026-06-12T10:11:04","guid":{"rendered":"https:\/\/materialparts.com\/efm32g222f128g-e-qfp48r\/"},"modified":"2026-06-12T10:11:04","modified_gmt":"2026-06-12T10:11:04","slug":"efm32g222f128g-e-qfp48r","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/efm32g222f128g-e-qfp48r\/","title":{"rendered":"EFM32G222F128G-E-QFP48R"},"content":{"rendered":"

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

The EFM32G222F128G-E-QFP48R from Silicon Labs is an ultra-low-power ARM Cortex-M3 microcontroller running at 32 MHz with 128KB Flash and 16KB SRAM. Part of the Gecko family, it features 0.6uA stop mode current, 2us wakeup, and hardware AES encryption in a TQFP-48 package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u6838\u5fc3<\/td>\nARM Cortex-M3 @ 32 MHz<\/td>\n<\/tr>\n
Flash Memory<\/td>\n128 KB<\/td>\n<\/tr>\n
SRAM<\/td>\n16 KB<\/td>\n<\/tr>\n
Stop Mode Current<\/td>\n0.6 uA (with BOR and RAM retention)<\/td>\n<\/tr>\n
Deep Sleep Current<\/td>\n45 uA\/MHz<\/td>\n<\/tr>\n
Run Current<\/td>\n180 uA\/MHz<\/td>\n<\/tr>\n
Wakeup Time<\/td>\n2 us<\/td>\n<\/tr>\n
ADC<\/td>\n12-bit, 1 Msps, 8 SE \/ 4 Diff<\/td>\n<\/tr>\n
\u53d1\u63f4\u4f1a<\/td>\n12-bit, 500 ksps<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n1.98V to 3.8V<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40 to 85 C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nTQFP-48 (7 x 7mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Ultra-low-power 0.6uA stop mode with full RAM retention<\/li>\n
  • 2us fast wakeup from stop mode<\/li>\n
  • Hardware AES-128\/256 encryption engine<\/li>\n
  • Peripheral Reflex System (PRS) for autonomous inter-peripheral signaling<\/li>\n
  • LCD controller supporting 4×40 segments<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Smart metering and energy monitoring<\/li>\n
    • Wearable health and fitness devices<\/li>\n
    • Home and building automation<\/li>\n
    • Portable instrumentation<\/li>\n
    • Wireless sensor nodes<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The EFM32G222F128G-E-QFP48R from Silicon Labs is an ultra-low-power ARM Cortex-M3 microcontroller running at 32 MHz with 128KB Flash and 16KB SRAM. Part of the Gecko family, it features 0.6uA stop mode current, 2us wakeup, and hardware AES encryption in a TQFP-48 package. Key Specifications Core ARM Cortex-M3 @ 32 MHz Flash Memory 128 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,25],"tags":[],"chip_brand":[177],"class_list":["post-6256","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-microcontrollers-mcu","chip_brand-silicon-labs"],"acf":{"brief_explanation":"32MHz Cortex-M3 MCU, 128KB Flash, 0.6uA stop mode, AES, LCD ctrl, TQFP-48","date_code":"","package_case":"TQFP-48 (7 x 7 x 1.2mm)","in_stock":11296,"datasheet":"https:\/\/www.silabs.com\/documents\/public\/data-sheets\/efm32g-datasheet.pdf","price":"$4.09 @ 1ku","product_introduction":"The EFM32G222F128G-E-QFP48R from Silicon Labs is an ultra-low-power 32-bit microcontroller based on the ARM Cortex-M3 core running at 32 MHz. Part of the original Gecko family, it is designed for energy-constrained applications with industry-leading low-power modes: 0.6uA stop mode with BOR and RAM retention, and 2us wakeup time. The device integrates 128KB Flash, 16KB SRAM, hardware AES encryption, a 12-bit 1Msps ADC, 12-bit DAC, LCD controller, and a unique Peripheral Reflex System (PRS) that enables autonomous inter-peripheral communication without CPU intervention.","working_principle":"The EFM32G222F128G-E-QFP48R is built around an energy-optimized ARM Cortex-M3 core with sophisticated power management. **Energy Management**: Multiple energy modes (EM0-EM4) allow fine-grained power control. EM0 (Run) at 180uA\/MHz, EM2 (Deep Sleep) at 0.6uA with RTC and RAM active, EM3 (Stop) at 0.6uA with BOR and RAM retention. The 2us wakeup from EM2 enables aggressive duty-cycling. **PRS Subsystem**: The 8-channel Peripheral Reflex System allows peripherals to trigger each other directly without CPU intervention. For example, a comparator output can trigger a timer capture or DAC update while the CPU sleeps. **Crypto Engine**: The hardware AES module supports 128\/256-bit encryption\/decryption in ECB, CBC, and CTR modes with DMA support, offloading cryptographic operations from the CPU. **Analog Subsystem**: The 12-bit 1Msps ADC supports 8 single-ended or 4 differential inputs with programmable gain. The DAC provides 12-bit output at 500ksps. Both can operate autonomously via DMA and PRS connections.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>VDD<\/td>Digital power supply (1.98-3.8V)<\/td><\/tr>
      2<\/td>VSS<\/td>Ground<\/td><\/tr>
      3<\/td>RESETn<\/td>System reset (active low)<\/td><\/tr>
      4-8<\/td>PA0-PA4<\/td>GPIO Port A with alternate functions<\/td><\/tr>
      9-15<\/td>PB0-PB6<\/td>GPIO Port B with alternate functions<\/td><\/tr>
      16-23<\/td>PC0-PC7<\/td>GPIO Port C with alternate functions<\/td><\/tr>
      24-27<\/td>PD0-PD3<\/td>GPIO Port D with alternate functions<\/td><\/tr>
      28<\/td>VDDA<\/td>Analog power supply<\/td><\/tr>
      29<\/td>VSSA<\/td>Analog ground<\/td><\/tr>
      30<\/td>VREF<\/td>ADC\/DAC reference voltage<\/td><\/tr>
      31-38<\/td>PE0-PE7<\/td>GPIO Port E with LCD segment outputs<\/td><\/tr>
      39-44<\/td>PF0-PF5<\/td>GPIO Port F with LCD segment outputs<\/td><\/tr>
      45-48<\/td>VDD\/DECOU<\/td>Power and decoupling pins<\/td><\/tr><\/table>","application_scenarios":"
      • Smart Metering: Battery-powered electricity, gas, and water meters with 10+ year lifetime<\/li>
      • Wearable Devices: Fitness trackers and health monitors with aggressive sleep\/wake duty cycling<\/li>
      • Home Automation: Battery-operated door\/window sensors and smart locks with BLE or Sub-GHz radio<\/li>
      • Portable Instruments: Handheld measurement tools with LCD display and long battery life<\/li>
      • Wireless Sensors: Environmental monitoring nodes with sub-1GHz or 2.4GHz radio modules<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        EFM32TG222F32<\/td>Silicon Labs<\/td>Tiny Gecko, 32KB Flash, 4KB RAM<\/td><\/tr>
        EFM32LG232F256<\/td>Silicon Labs<\/td>Leopard Gecko, 256KB, USB<\/td><\/tr>
        STM32L151C8U6<\/td>ST<\/td>32MHz, 64KB, 0.4uA standby, UFQFPN-48<\/td><\/tr>
        MSP430FR5994IPN<\/td>TI<\/td>16-bit FRAM, 0.5uA LPM3.5, QFP-48<\/td><\/tr>
        SAM L21J18B-AUT<\/td>Microchip<\/td>48MHz Cortex-M0+, 0.6uA standby, QFP-64<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6256","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=6256"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6256\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=6256"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=6256"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=6256"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=6256"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}