{"id":7808,"date":"2026-06-27T03:35:11","date_gmt":"2026-06-27T03:35:11","guid":{"rendered":"https:\/\/materialparts.com\/stm32l052k6u6-2\/"},"modified":"2026-06-27T03:35:11","modified_gmt":"2026-06-27T03:35:11","slug":"stm32l052k6u6-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/stm32l052k6u6-2\/","title":{"rendered":"STM32L052K6U6"},"content":{"rendered":"

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

The STM32L052K6U6 is an ultra-low-power ARM Cortex-M0+ microcontroller from STMicroelectronics with 32KB Flash, 8KB RAM, 2KB EEPROM, USB 2.0 crystal-less, 12-bit ADC, DAC, and touch sensing in a 32-pin UFQFPN (5x5mm) package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\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
Max Clock Speed<\/td>\n32 MHz<\/td>\n<\/tr>\n
Flash Memory<\/td>\n32 KB (with ECC)<\/td>\n<\/tr>\n
RAM<\/td>\n8 KB<\/td>\n<\/tr>\n
Data EEPROM<\/td>\n2 KB (with ECC)<\/td>\n<\/tr>\n
USB<\/td>\n2.0 crystal-less with LPM<\/td>\n<\/tr>\n
ADC<\/td>\n12-bit, 1.14 Msps, up to 10 channels<\/td>\n<\/tr>\n
\u53d1\u63f4\u4f1a<\/td>\n12-bit, 1 channel<\/td>\n<\/tr>\n
Comparators<\/td>\n2 ultra-low-power with window mode<\/td>\n<\/tr>\n
\u4ea4\u6d41<\/td>\n2x USART, 1x LPUART, 2x I2C, 1x SPI, USB<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n1.65 V to 3.6 V<\/td>\n<\/tr>\n
Run Current<\/td>\n88 \u00b5A\/MHz<\/td>\n<\/tr>\n
Standby Mode<\/td>\n0.27 \u00b5A<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nUFQFPN-32 (5 x 5 mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Ultra-low-power: 0.27 \u00b5A standby, 0.4 \u00b5A stop, 88 \u00b5A\/MHz run<\/li>\n
  • Crystal-less USB 2.0 with battery charging detection<\/li>\n
  • 12-bit ADC with hardware oversampling<\/li>\n
  • 12-bit DAC with output buffer<\/li>\n
  • 2KB data EEPROM with ECC (unique in class)<\/li>\n
  • Up to 24 capacitive touch sensing channels<\/li>\n
  • Pre-programmed bootloader (USART\/SPI)<\/li>\n
  • True random number generator (RNG)<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • USB peripherals and human interface devices<\/li>\n
    • Portable medical instruments<\/li>\n
    • Smart meters and energy harvesting<\/li>\n
    • Touch-enabled user interfaces<\/li>\n
    • Industrial sensors and actuators<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The STM32L052K6U6 is an ultra-low-power ARM Cortex-M0+ microcontroller from STMicroelectronics with 32KB Flash, 8KB RAM, 2KB EEPROM, USB 2.0 crystal-less, 12-bit ADC, DAC, and touch sensing in a 32-pin UFQFPN (5x5mm) package. Key Specifications Core ARM Cortex-M0+ (32-bit) Max Clock Speed 32 MHz Flash Memory 32 KB (with ECC) RAM 8 KB Data […]<\/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":[13,25],"tags":[],"chip_brand":[142],"class_list":["post-7808","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-microcontrollers-mcu","chip_brand-st"],"acf":{"brief_explanation":"Ultra-low-power Cortex-M0+ MCU, 32KB Flash, 8KB RAM, USB, ADC, DAC, UFQFPN-32","date_code":"","package_case":"UFQFPN-32 (5 x 5 mm, 0.5mm pitch)","in_stock":9340,"datasheet":"https:\/\/www.st.com\/resource\/en\/datasheet\/stm32l052k6.pdf","price":"$1.85 @ 1ku","product_introduction":"The STM32L052K6U6 is an ultra-low-power microcontroller from STMicroelectronics based on the ARM Cortex-M0+ 32-bit RISC core operating at up to 32 MHz. It integrates 32KB Flash with ECC, 8KB SRAM, and a unique 2KB data EEPROM with ECC. The device features a crystal-less USB 2.0 interface with battery charging detection and Link Power Management, a 12-bit 1.14 Msps ADC with hardware oversampling, a 12-bit DAC, two ultra-low-power comparators, and up to 24 capacitive touch sensing channels. Multiple communication interfaces include 2 USARTs, 1 LPUART, 2 I2C, and SPI. Ultra-low-power modes achieve 0.27 \u00b5A standby and 0.4 \u00b5A stop current with sub-5 \u00b5s wakeup.","working_principle":"The STM32L052K6U6 is built on ST ultra-low-power platform with optimized power management. The Cortex-M0+ core executes Thumb instructions at 0.95 DMIPS\/MHz with a 2-stage pipeline and optional MPU for memory protection. The voltage regulator adapts internally to minimize power consumption across the 1.65-3.6V range. Multiple clock sources include a 16 MHz HSI RC (plus or minus 1%), a 37 kHz LSI, and a multi-speed MSI (65 kHz to 4.2 MHz) that can be trimmed using LSE. The USB interface uses an internal 48 MHz RC oscillator calibrated from USB SOF packets, eliminating the need for an external crystal. Low-power modes progressively disable clock domains: Stop mode keeps SRAM and registers while stopping the CPU clock (0.4 \u00b5A); Standby mode powers down everything except the RTC and backup registers (0.27 \u00b5A). The on-chip EEPROM uses a charge pump for write\/erase operations, providing byte-level write capability without Flash page-erase overhead.","pin_description":"\n
      Pin Group<\/th>Function<\/th>Description<\/th><\/tr>\n
      PA0-PA7<\/td>GPIO\/ADC\/Touch<\/td>Port A with ADC, touch, USART2, SPI1 alternate functions<\/td><\/tr>\n
      PB0-PB7<\/td>GPIO\/ADC\/I2C<\/td>Port B with ADC, I2C1, I2C2, LPUART1 functions<\/td><\/tr>\n
      PC14-PC15<\/td>GPIO\/OSC<\/td>Port C with LSE crystal oscillator connections<\/td><\/tr>\n
      NRST<\/td>System<\/td>Reset input (active low)<\/td><\/tr>\n
      BOOT0<\/td>System<\/td>Boot mode selection<\/td><\/tr>\n
      VDD\/VSS<\/td>Power<\/td>Supply and ground (multiple pins)<\/td><\/tr>\n
      VDDUSB<\/td>Power<\/td>USB transceiver supply (3.0-3.6V)<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • USB Peripherals:<\/strong> Crystal-less USB 2.0 with LPM simplifies HID, CDC, and custom USB device designs<\/li>\n
      • Portable Medical:<\/strong> 0.27 \u00b5A standby and 88 \u00b5A\/MHz run current extend battery life in glucose monitors and pulse oximeters<\/li>\n
      • Touch UI Devices:<\/strong> 24 capacitive sensing channels add touch buttons\/sliders without external touch controller<\/li>\n
      • Data Logging:<\/strong> 2KB on-chip EEPROM stores calibration and configuration data without Flash page-erase complexity<\/li>\n
      • Smart Sensors:<\/strong> Low-power modes, 12-bit ADC, DAC, and compact UFQFPN package fit wireless sensor nodes<\/li>\n<\/ul>","alternative_models":"\n
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>\n
        STM32L052K8U6<\/td>ST<\/td>64KB Flash version, same package<\/td><\/tr>\n
        STM32L051K6U6<\/td>ST<\/td>Same without USB and DAC<\/td><\/tr>\n
        STM32L031K6U6<\/td>ST<\/td>32KB Flash, no USB, lower cost<\/td><\/tr>\n
        SAMD21E15A-MUT<\/td>Microchip<\/td>48MHz M0+, 32KB Flash, TQFP-32<\/td><\/tr>\n
        LPC824M201JHI33<\/td>NXP<\/td>30MHz M0+, 32KB Flash, HVQFN-33<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7808","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=7808"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7808\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7808"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7808"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7808"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7808"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}