{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L431CCT6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L431CCT6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L431CCT6","factsUrl":"https://icboms.com/api/mcp/products/STM32L431CCT6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4 series STM32L431CCT6, ARM Cortex-M4 32-Bit MCU, 80MHz, 256KB Flash, 64K x 8 SRAM, 48-LQFP, -40°C~85°C, 1.71V~3.6V.","salesMarkdown":"## 80 MHz Cortex-M4 with 256 KB Flash — mid-range STM32L4 for industrial and battery-edge designs The 48-LQFP package gives access to 39 I/Os, and the peripheral set includes CANbus, multiple I²C and SPI interfaces, QSPI, SAI, and a 12-bit ADC with 10 channels plus two 12-bit DACs. Typical applications span industrial sensor nodes, portable instrumentation, motor-control interfaces, and IoT edge devices where the balance of compute throughput and active-mode power matters. ## What the 80 MHz core and memory map mean for the BOM decision The 64 KB SRAM (organized as 64K x 8) supports a few hundred bytes of frame buffer or a moderate data logger. If your firmware image and heap fit within these boundaries, this part avoids the cost uplift of the larger Flash siblings. The active status also keeps the part available through franchised distribution channels, which simplifies the audit trail for quality-sensitive builds. ## Industrial temperature grade and 48-LQFP footprint","metaTitle":"STM32L431CCT6 STMicroelectronics ARM Cortex-M4 MCU, 80 MHz","metaDescription":"STM32L431CCT6 32-bit MCU with 256 KB Flash, 64 KB SRAM, 80 MHz ARM Cortex-M4, 48-LQFP, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"80MHz","Series":"STM32L4","Package":"Tray","RAM Size":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, LINbus, QSPI, SAI, SPI, SWPMI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"39","Core Processor":"ARM® Cortex®-M4","Package / Case":"48-LQFP","Product Status":"Active","Data Converters":"A/D 10x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L431","Program Memory Size":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"48-LQFP (7x7)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.5900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/5001c15c5be880a0e65d1dfc08e4f0cc.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L431CCT6/alternatives.json"},"ai":{"faq":[{"question":"What is the pin-compatible alternative to STM32L431CCT6?","answer":"The STM32L433CCT6 is pin-compatible in the same 48-LQFP footprint and adds 16 KB more SRAM (80 KB total) plus a hardware AES accelerator. If your firmware can use the extra memory or encryption block, it is a drop-in upgrade without a board spin. Both share the same base product number family (STM32L431 / STM32L433) and identical pinout in the 48-pin package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L431CCT6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L431CCT6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}