{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L4R5ZGY6TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L4R5ZGY6TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L4R5ZGY6TR","factsUrl":"https://icboms.com/api/mcp/products/STM32L4R5ZGY6TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4R5ZGY6TR, STM32L4R series, 32-bit ARM Cortex-M4 single-core MCU, 120MHz, 1MB Flash, 640KB SRAM, 115 I/O, 1.71V-3.6V, -40°C to 85°C, 144-WLCSP (5.24x5.24 mm), Tape & Reel.","salesMarkdown":"## What this STM32L4R5ZGY6TR brings to the board This is the part you spec when you need a high-density memory footprint and a rich peripheral set — CANbus, USB OTG, multiple I²C and SPI interfaces, plus an EBI/EMI bus for external memory expansion — all on a wafer-level chip-scale footprint that saves board area for compact sensor hubs, wearable gateways, and industrial IoT edge nodes. ## 120 MHz Cortex-M4 with 1 MB Flash — the compute and memory tier The 1 MB Flash gives you room for a full RTOS, a graphics stack, or OTA update staging with a fallback image. The 640 KB SRAM is generous for this class — enough to buffer camera frames or hold a large audio pipeline without external RAM. The 115 general-purpose I/O pins, spread across the WLCSP ball grid, let you connect parallel displays, external memory, and multiple sensor buses simultaneously. ## 144-WLCSP: density trade-off for the PCB layout engineer This saves board area but demands a clean solder-paste stencil and a reflow profile tuned for the 0.4 mm or 0.5 mm ball pitch typical of this package family. ## Lifecycle and compliance STMicroelectronics lists the STM32L4R5ZGY6TR as Active. The base product number is STM32L4R5, so future PCN or die-revision updates will carry that prefix. ## Sourcing posture for the shortage-desk buyer This part is in the active STM32L4R production window, which means franchised distribution carries allocation during tight cycles and independent channels hold excess from over-ordered programmes. The WLCSP package is less commonly overstocked than the LQFP variants — if you see a spot lot, verify date code and bake requirements before committing. For volume production, we quote against an RFQ with current market pricing and confirmed availability. No LTB risk here, but the 144-ball WLCSP means rework cost is higher than a QFP; budget for X-ray inspection on first articles.","metaTitle":"STM32L4R5ZGY6TR STM32 MCU, 120MHz Cortex-M4, 1MB Flash","metaDescription":"STMicroelectronics STM32L4R5ZGY6TR 32-bit ARM Cortex-M4 MCU at 120MHz with 1MB Flash and 640KB SRAM in 144-WLCSP. Active lifecycle, industrial temp range.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"120MHz","Series":"STM32L4R","Package":"Tape & Reel (TR)","RAM Size":"640K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"CANbus, EBI/EMI, I²C, IrDA, LINbus, MMC/SD, SAI, SPI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"115","Core Processor":"ARM® Cortex®-M4","Package / Case":"144-UFBGA, WLCSP","Product Status":"Active","Data Converters":"A/D 16x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L4R5","Program Memory Size":"1MB (1M x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"144-WLCSP (5.24x5.24)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.8271","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3911b6923e911f78d930b1bab40f9562.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to STM32L4R5ZGY6TR?","answer":"Within the STM32L4R series, the STM32L4R5ZI (LQFP144 package) is functionally equivalent but uses a different footprint — the WLCSP and LQFP144 are not pin-compatible. For a drop-in WLCSP replacement, look at the STM32L4R5ZGY6 part without the TR suffix; the die and ball map are identical, only the shipping medium differs (Tray vs Tape & Reel)."},{"question":"What are the specifications of STM32L4R5ZGY6TR?","answer":"Peripherals include CANbus, USB OTG, multiple I²C/SPI/UART, EBI/EMI, 16-channel 12-bit ADC, and 2-channel 12-bit DAC."},{"question":"Is STM32L4R5ZGY6TR RoHS compliant?","answer":"The STM32L4R series is manufactured RoHS-compliant by STMicroelectronics. The TR suffix denotes Tape & Reel packaging, which does not affect the RoHS status. No separate RoHS certificate is required for this standard commercial part."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L4R5ZGY6TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L4R5ZGY6TR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T12:41:20.137Z","lastPublished":"2026-07-16T12:41:20.137Z","indexable":true}}