{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L451VCI6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L451VCI6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L451VCI6","factsUrl":"https://icboms.com/api/mcp/products/STM32L451VCI6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L451VCI6, STM32L4 series, ARM Cortex-M4 32-bit MCU, 80 MHz, 256 KB Flash, 160K x 8 RAM, 100-UFBGA, -40 to 85°C, 1.71 V to 3.6 V supply.","salesMarkdown":"## 80 MHz Cortex-M4 in a 7x7 BGA — the low-power workhorse It is built for applications where active compute throughput and standby current both matter — think sensor fusion nodes, portable medical instruments, and battery-operated industrial loggers. The 100-UFBGA (7x7 mm) package packs 83 I/Os into a 0.5 mm pitch ball grid array. That footprint buys you connectivity options — CANbus, I²C, SPI, UART/USART, QSPI, SAI, and MMC/SD — in a board area that would normally hold a smaller-pin-count LQFP. The trade-off is a multi-layer PCB for fanout and a controlled reflow profile; this is not a two-layer-board part. ## 256 KB Flash, 160 KB SRAM — sizing the firmware budget 256 KB of Flash gives room for a real-time OS, a TCP/IP stack, and application logic without squeezing into the 128 KB tier. The 160K x 8 SRAM (160 KB) is generous for an MCU in this class — enough to hold two full 800x600 frame buffers or a large protocol buffer without external memory. If your application streams audio or runs a GUI with a framebuffer, this part keeps the BOM single-chip. For a production BOM, this means you are not forced into a bridge-buy or a redesign cycle. ## Supply range and temperature — where it runs The 1.71 V minimum supply is the key detail for battery-powered designs: the MCU stays operational through the full discharge curve of a Li-ion cell down to 3.0 V nominal, with headroom to 3.6 V for USB-powered or regulated rails.","metaTitle":"STM32L451VCI6 STM32L4 ARM Cortex-M4 MCU, 80 MHz","metaDescription":"STMicroelectronics STM32L451VCI6 32-bit ARM Cortex-M4 MCU, 80 MHz, 256 KB Flash, 160K x 8 RAM, 100-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":"Tube","RAM Size":"160K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"83","Core Processor":"ARM® Cortex®-M4","Package / Case":"100-UFBGA","Product Status":"Active","Data Converters":"A/D 16x12b; D/A 1x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L451","Program Memory Size":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"100-UFBGA (7x7)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.3500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0661af420d754d37ee77b070d7d5943e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between STM32L451VCI6 and STM32L452VCI6?","answer":"The STM32L452VCI6 is a close sibling in the same STM32L4 family, sharing the same 80 MHz Cortex-M4 core, 256 KB Flash, 160 KB SRAM, and 100-UFBGA package. The primary difference is that the STM32L452 includes a full-speed USB 2.0 device interface with crystal-less operation, which the STM32L451 lacks. If your design needs USB connectivity, the STM32L452 is the correct choice; otherwise the STM32L451 is functionally equivalent and typically carries a slightly lower BOM cost."},{"question":"Can STM32L451VCI6 be used as a replacement for STM32L451VCI5?","answer":"The STM32L451VCI6 and STM32L451VCI5 share the same base product number STM32L451 and the same 100-UFBGA package, so they are pin-compatible. The suffix difference typically indicates a temperature grade or packaging variant. Both are active parts in the same family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L451VCI6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L451VCI6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T12:48:17.587Z","lastPublished":"2026-07-16T12:48:17.587Z","indexable":true}}