{"id":10569,"date":"2026-07-20T05:50:43","date_gmt":"2026-07-20T05:50:43","guid":{"rendered":"https:\/\/ic-vendor.com\/stm32l432kcu6-2\/"},"modified":"2026-07-20T05:50:43","modified_gmt":"2026-07-20T05:50:43","slug":"stm32l432kcu6-2","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/stm32l432kcu6-2\/","title":{"rendered":"STM32L432KCU6"},"content":{"rendered":"

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

The STMicroelectronics STM32L432KCU6 is an ultra-low-power 32-bit microcontroller based on the ARM Cortex-M4 core with FPU, operating at up to 80MHz. It features 256KB Flash memory, 64KB SRAM, and a comprehensive set of peripherals including USB 2.0 full-speed, CAN, SPI, I2C, USART, and a 12-bit ADC at 5Msps. Housed in a 32-pin UFQFPN package (5\u00d75mm), it is designed for battery-powered and energy-efficient applications.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u6838\u5fc3<\/td>\nARM Cortex-M4 with FPU and DSP instructions<\/td>\n<\/tr>\n
Max Clock Frequency<\/td>\n80 MHz<\/td>\n<\/tr>\n
Performance<\/td>\n100 DMIPS \/ 273.55 CoreMark<\/td>\n<\/tr>\n
Flash Memory<\/td>\n256 KB (single bank)<\/td>\n<\/tr>\n
SRAM<\/td>\n64 KB (16KB with hardware parity)<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n1.71V to 3.6V<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
GPIO Count<\/td>\n26 (most 5V-tolerant)<\/td>\n<\/tr>\n
ADC<\/td>\n1\u00d7 12-bit, 5 Msps, 10 channels<\/td>\n<\/tr>\n
\u53d1\u63f4\u4f1a<\/td>\n2\u00d7 12-bit channels<\/td>\n<\/tr>\n
Comparators<\/td>\n2 (ultra-low-power)<\/td>\n<\/tr>\n
Op-Amp<\/td>\n1 (with built-in PGA)<\/td>\n<\/tr>\n
\u8ba1\u65f6\u5668<\/td>\n11 total (1\u00d7 32-bit, 4\u00d7 16-bit GP, 1\u00d7 motor control, 2\u00d7 LP, 2\u00d7 watchdog, SysTick)<\/td>\n<\/tr>\n
Communication Interfaces<\/td>\nUSB 2.0 FS, CAN 2.0B, 3\u00d7 USART, 2\u00d7 SPI, 2\u00d7 I2C, 1\u00d7 SAI, 1\u00d7 SWPMI, 1\u00d7 QSPI<\/td>\n<\/tr>\n
DMA<\/td>\n14-channel DMA controller<\/td>\n<\/tr>\n
Security<\/td>\nTRNG, AES, Firewall, Readout protection<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nUFQFPN32 (5\u00d75\u00d70.6mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Ultra-low-power: 8nA Shutdown, 28nA Standby, 280nA Standby+RTC, 1.0\u00b5A Stop 2<\/li>\n
  • 84 \u00b5A\/MHz run mode with ART Accelerator (0-wait-state Flash execution)<\/li>\n
  • 4\u00b5s wakeup from Stop mode<\/li>\n
  • FlexPowerControl for dynamic power optimization<\/li>\n
  • Batch Acquisition Mode (BAM) for efficient data acquisition<\/li>\n
  • Internal 16MHz RC (\u00b11%), 32kHz RC (\u00b15%), 48MHz with clock recovery<\/li>\n
  • 2 PLLs for system clock, USB, audio, and ADC<\/li>\n
  • RTC with hardware calendar, alarms, and calibration<\/li>\n
  • True Random Number Generator (TRNG) for hardware entropy<\/li>\n
  • AES hardware encryption<\/li>\n
  • SWD and JTAG debug with Embedded Trace Macrocell<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Wearable devices and fitness trackers<\/li>\n
    • IoT sensor nodes<\/li>\n
    • Portable medical instruments<\/li>\n
    • Smart home devices<\/li>\n
    • USB peripherals<\/li>\n
    • Motor control and industrial automation<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The STMicroelectronics STM32L432KCU6 is an ultra-low-power 32-bit microcontroller based on the ARM Cortex-M4 core with FPU, operating at up to 80MHz. It features 256KB Flash memory, 64KB SRAM, and a comprehensive set of peripherals including USB 2.0 full-speed, CAN, SPI, I2C, USART, and a 12-bit ADC at 5Msps. Housed in a 32-pin UFQFPN […]<\/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],"tags":[1892,1891,471,1889,1890],"chip_brand":[180],"class_list":["post-10569","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","tag-arm","tag-cortex-m4","tag-mcu","tag-stm32l432kcu6","tag-stmicroelectronics","chip_brand-stmicroelectronics"],"acf":{"brief_explanation":"Ultra-low-power ARM Cortex-M4 MCU, 80MHz, 256KB Flash, 64KB SRAM, USB, CAN, UFQFPN32, STMicroelectronics","date_code":"","package_case":"UFQFPN32 (5\u00d75\u00d70.6mm, exposed pad)","in_stock":9441,"datasheet":"https:\/\/www.st.com\/resource\/en\/datasheet\/stm32l432kc.pdf","price":"$4.08 @ 1000+","product_introduction":"The STMicroelectronics STM32L432KCU6 is an ultra-low-power microcontroller based on the ARM Cortex-M4 32-bit RISC core with FPU and DSP instructions, operating at up to 80MHz (100 DMIPS). It features 256KB single-bank Flash, 64KB SRAM (16KB with hardware parity), and a Quad SPI interface for external memory expansion. The device integrates a rich peripheral set including USB 2.0 full-speed (crystal-less), CAN 2.0B, 3\u00d7 USART, 2\u00d7 SPI, 2\u00d7 I2C, SAI audio interface, SWPMI, a 12-bit ADC at 5Msps, 2\u00d7 12-bit DAC, 2 comparators, 1 op-amp with PGA, and 11 timers. Security features include TRNG, AES, Firewall, and readout protection. Housed in a 32-pin UFQFPN (5\u00d75mm) package.","working_principle":"The STM32L432KCU6 is built on ST's ultra-low-power platform with FlexPowerControl. The Cortex-M4 core executes instructions from Flash memory with 0 wait-states thanks to the ART Accelerator (Adaptive Real-Time memory accelerator with instruction cache, data cache, and prefetch buffer). The multi-AHB bus matrix allows concurrent access to peripherals and memory. Multiple power modes (Run, Sleep, Stop 0\/1\/2, Standby, Shutdown) enable fine-grained power optimization: in Stop 2 mode (1.0\u00b5A), low-power peripherals (LP UART, LP timers) remain active. The internal clock tree includes HSI16 (16MHz \u00b11%), MSI (100kHz-48MHz, auto-trimmed by LSE), HSI48 (48MHz with CRS for USB crystal-less), and LSE (32.768kHz) feeding two PLLs. The DMA controller handles data transfers between peripherals and memory without CPU intervention. Security features include a Firewall for code isolation and AES hardware accelerator for cryptographic operations.","pin_description":"Pin Description(Output pin definitions in table format only; return pure content without derivation or extra elaboration)","application_scenarios":"Application Scenarios (Output pin definitions in table format only; return pure content without derivation or extra elaboration)","alternative_models":"STM32L432KBU6 (UFQFPN32, different flash\/RAM option); STM32L433KCU6 (adds LCD controller); STM32L412KCU6 (reduced feature, lower cost); nRF52832 (Nordic, similar size, BLE); SAMD21 (Microchip, Cortex-M0+, lower power but less performance)"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10569","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=10569"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/10569\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=10569"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=10569"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=10569"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=10569"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}