{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L422CBU6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L422CBU6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L422CBU6","factsUrl":"https://icboms.com/api/mcp/products/STM32L422CBU6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4 series, STM32L422CBU6, ARM Cortex-M4 32-Bit Single-Core MCU, 80MHz, 128KB Flash, 40K x 8 RAM, 38 I/O, 48-UFQFN Exposed Pad, -40°C to 85°C.","salesMarkdown":"The STM32L422CBU6: It carries 128 KB of Flash and 40 KB of SRAM, enough for a moderate sensor-fusion or control loop with a small RTOS. ## Industrial temperature grade and environment The internal oscillator cuts the BOM by one crystal, though an external clock can still be fed through the HSE pins if tighter timing is needed for USB or Quad-SPI. Connectivity includes I²C, SPI, Quad SPI, UART/USART, LIN, IrDA, and USB. The 10-channel 12-bit ADC handles analog inputs like thermistors or current-sense resistors without an external converter. With 38 I/O in a 48-pin package, most pins are available for GPIO or alternate functions. For dual-sourcing resilience, the STM32L151CBU6A (Cortex-M3, 32 MHz, 48-UFQFPN) is a pin-compatible alternative in the same footprint, though it trades the M4 FPU and lower active power for a different peripheral mix (Cap Sense, 2x DAC).","metaTitle":"STM32L422CBU6 STM32L4 MCU, 80MHz Cortex-M4, 128KB Flash","metaDescription":"STM32L422CBU6 32-bit ARM Cortex-M4 MCU at 80 MHz with 128 KB Flash and 40 KB SRAM. Industrial temp -40°C to 85°C. Active lifecycle.","metaKeywords":null},"attributes":{"series":"STM32L4","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"80MHz","Series":"STM32L4","Package":"Tray","RAM Size":"40K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, PWM, WDT","Connectivity":"I²C, Infrared, IrDA, LINbus, Quad SPI, SPI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"38","Core Processor":"ARM® Cortex®-M4","Package / Case":"48-UFQFN Exposed Pad","Product Status":"Active","Data Converters":"A/D 10x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L422","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"48-UFQFPN (7x7)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.9400","priceTiers":[{"qty":1,"price":"$4.94000","currency":"USD"},{"qty":10,"price":"$4.44000","currency":"USD"},{"qty":25,"price":"$4.19760","currency":"USD"},{"qty":80,"price":"$3.63788","currency":"USD"},{"qty":260,"price":"$3.45131","currency":"USD"},{"qty":520,"price":"$3.09685","currency":"USD"},{"qty":1040,"price":"$2.61180","currency":"USD"},{"qty":2600,"price":"$2.48121","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/08b18385ba7b503452c1da6901f4845f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L422CBU6/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement or equivalent for STM32L422CBU6?","answer":"The STM32L151CBU6A is a pin-compatible alternative in the same 48-UFQFPN package, but it uses a Cortex-M3 core at 32 MHz and lacks the FPU. It offers a different peripheral set including capacitive sensing and two DACs. For a direct functional replacement with the same M4 core and 80 MHz speed, stick with the STM32L422CBU6."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L422CBU6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L422CBU6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}