{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"R5F51115ADNE#2A","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"R5F51115ADNE2A","canonicalUrl":"https://icboms.com/renesas/R5F51115ADNE2A","factsUrl":"https://icboms.com/api/mcp/products/R5F51115ADNE%232A","rawCanonicalId":null},"summary":{"shortDescription":"Renesas RX111 series, R5F51115ADNE#2A, 32-bit single-core MCU, 32 MHz, 128 KB Flash, 16 KB RAM, 8 KB EEPROM, USB, 30 I/O, 1.8V–3.6V, -40°C to 85°C, 48-HWQFN exposed pad.","salesMarkdown":"## What the 32 MHz core and 128 KB Flash mean for the BOM The Renesas R5F51115ADNE#2A is a 32-bit RX111 MCU clocked at 32 MHz, with 128 KB of Flash program memory and 16 KB of RAM. That memory split is sized for a single control-loop firmware image with room for a modest bootloader and a data-logging buffer — think sensor fusion in an industrial transmitter or a brushless-DC motor controller that needs to store calibration tables. The integrated 8 KB EEPROM eliminates a separate serial EEPROM from the BOM, saving board area and a supply line. The 32 MHz clock is enough to run a PID loop at several kilohertz or handle USB full-speed packet processing without a dedicated USB controller. The peripheral set — DMA, LVD, POR, PWM, WDT — covers the usual housekeeping for an industrial design: brown-out detection, watchdog, and PWM outputs for motor or LED drive. Connectivity includes I²C, SCI (UART), SPI, and USB, so this part can serve as a system controller talking to sensors over I²C and reporting results over USB or UART. ## Package and thermal: 48-HWQFN with exposed pad The R5F51115ADNE#2A comes in a 48-WFQFN with an exposed pad (supplier device package 48-HWQFN, 7x7 mm). The exposed pad is the primary thermal path — without a via stitch under the pad, junction temperature rises quickly above 400 mA continuous I/O load. The pad also serves as the ground return for the core; a solid via array to the ground plane keeps both thermal and electrical impedance low. This is a surface-mount part, so standard reflow profiles for QFN packages apply, and the moisture sensitivity level (MSL) should be verified before reflow if the sealed bag has been open past the floor-life window. ## Temperature grade and environment Rated for -40°C to 85°C ambient, this is the industrial temperature grade. It fits factory-floor automation, outdoor telecom cabinets, and engine-bay-adjacent electronics that see moderate heat but not the full 125°C automotive under-hood range. The 1.8 V to 3.6 V supply range lets it run from a single Li-ion cell or a 3.3 V rail, and the internal oscillator eliminates an external crystal for applications that can tolerate ±2% accuracy over temperature. ## Lifecycle and sourcing posture The R5F51115ADNE#2A is listed as Active with ROHS3 compliance. There is no NRND or last-time-buy notice on this variant, so it remains a safe choice for new designs and production builds.","metaTitle":"R5F51115ADNE#2A RX111 32-bit MCU, 32 MHz, 128 KB Flash","metaDescription":"R5F51115ADNE#2A Renesas RX111 32-bit MCU at 32 MHz with 128 KB Flash, 16 KB RAM, 8 KB EEPROM, USB, industrial temp -40°C to 85°C. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"RX111","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Speed":"32MHz","Series":"RX111","Package":"Tray","RAM Size":"16K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"8K x 8","Peripherals":"DMA, LVD, POR, PWM, WDT","Connectivity":"I²C, SCI, SPI, USB","Mounting Type":"Surface Mount","Number of I/O":"30","Core Processor":"RX","Package / Case":"48-WFQFN Exposed Pad","Data Converters":"A/D 10x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"48-HWQFN (7x7)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.16","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.16000","currency":"USD"},{"qty":10,"price":"$2.83600","currency":"USD"},{"qty":25,"price":"$2.68160","currency":"USD"},{"qty":80,"price":"$2.32400","currency":"USD"},{"qty":416,"price":"$2.20483","currency":"USD"},{"qty":832,"price":"$1.97839","currency":"USD"},{"qty":1248,"price":"$1.66852","currency":"USD"},{"qty":2496,"price":"$1.58509","currency":"USD"},{"qty":4992,"price":"$1.52550","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5982b3f77ed1a0a46602e21070cbb94b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy R5F51115ADNE#2A and get a price?","answer":"The R5F51115ADNE#2A is sourced through independent distribution and quoted to order against an RFQ. Submit a request through this listing to receive current pricing and availability confirmation — no stock count or price is published here because both vary with market conditions and order volume."},{"question":"What is the flash memory size of R5F51115ADNE#2A?","answer":"The program memory is 128 KB of Flash (128K x 8). There is also 16 KB of RAM and 8 KB of integrated EEPROM, so calibration constants or configuration data can be stored on-chip without an external EEPROM."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/R5F51115ADNE2A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/R5F51115ADNE2A when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}