{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L471ZEJ6TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L471ZEJ6TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L471ZEJ6TR","factsUrl":"https://icboms.com/api/mcp/products/STM32L471ZEJ6TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L471ZEJ6TR, STM32L4 series, 32-bit ARM Cortex-M4 MCU, 80 MHz, 512 KB Flash, 128 KB SRAM, 114 I/O, 144-UFBGA (10x10), -40 to 85°C, 1.71 V to 3.6 V supply.","salesMarkdown":"## 80 MHz Cortex-M4 with FPU — what the core speed buys you The STM32L471ZEJ6TR is an STMicroelectronics STM32L4 series 32-bit ARM Cortex-M4 MCU with a single-precision FPU, clocked at 80 MHz. That core speed, combined with the DSP instruction set, handles real-time control loops and sensor fusion without an external DSP. ## Supply range and temperature — industrial and battery-fit If your design needs 105°C or AEC-Q100, look at the STM32L4A5 or STM32L4R5 series instead. ## 144-UFBGA — footprint and reflow considerations Housed in a 144-UFBGA (10x10 mm) package, this is a fine-pitch BGA with 0.5 mm ball pitch. The 114 I/O count gives plenty of GPIO for parallel displays, external memory buses, or sensor arrays. ## Peripherals and connectivity — what is on the bus The peripheral set includes CANbus, I2C, SPI, USART, QSPI, SAI (audio), and SWPMI (single-wire protocol). Brown-out detect and a watchdog are built in, so external supervisor ICs are optional for most applications. For dual-sourcing resilience, the STM32L4 series includes pin-compatible siblings with different memory densities — the STM32L476 and STM32L486 share the same footprint and peripheral map, differing mainly in SRAM size and crypto accelerator presence.","metaTitle":"STM32L471ZEJ6TR STM32L4 ARM Cortex-M4 MCU, 80 MHz","metaDescription":"STMicroelectronics STM32L471ZEJ6TR 32-bit ARM Cortex-M4 MCU, 80 MHz, 512 KB Flash, 128 KB SRAM, 114 I/O, 144-UFBGA, -40 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":"Tape & Reel (TR)","RAM Size":"128K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, PWM, WDT","Connectivity":"CANbus, EBI/EMI, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"114","Core Processor":"ARM® Cortex®-M4","Package / Case":"144-UFBGA","Product Status":"Active","Data Converters":"A/D 24x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L471","Program Memory Size":"512KB (512K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"144-UFBGA (10x10)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.9834","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4420564db785aeab67c38eeacd74e22d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to STM32L471ZEJ6TR?","answer":"Within the STM32L4 series, the STM32L476 and STM32L486 are pin-compatible with the same 144-UFBGA footprint. The STM32L476 offers the same Flash and SRAM but without the hardware cryptographic accelerator; the STM32L486 adds the crypto engine. Check the specific peripheral and memory requirements before substituting."},{"question":"What package does STM32L471ZEJ6TR come in?","answer":"It is supplied in a 144-UFBGA (10x10 mm) package with 0.5 mm ball pitch, intended for surface-mount assembly. The TR suffix means Tape & Reel packaging."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L471ZEJ6TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L471ZEJ6TR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T12:40:13.578Z","lastPublished":"2026-07-16T12:40:13.578Z","indexable":true}}