{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"R5F51406BDFL#10","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"R5F51406BDFL10","canonicalUrl":"https://icboms.com/renesas/R5F51406BDFL10","factsUrl":"https://icboms.com/api/mcp/products/R5F51406BDFL%2310","rawCanonicalId":null},"summary":{"shortDescription":"Renesas Electronics RX140 series 32-bit single-core MCU, RXv2 core at 48 MHz, 256 KB flash, 64 KB RAM, 8 KB EEPROM, 39 I/O, 48-LQFP, -40 to 85°C, 1.8-5.5 V.","salesMarkdown":"## Core and memory budget for a sensor-driven control loop The R5F51406BDFL#10: The 8 KB dedicated EEPROM stores calibration constants and production data separately from the program flash, so a firmware update does not overwrite field-tuned parameters. ## Peripheral set for secure fieldbus nodes The on-chip AES accelerator and true random number generator offload cryptographic operations from the CPU — useful for secure boot, encrypted OTA firmware updates, or CAN message authentication. The capacitive touch sensing unit replaces an external touch controller in a panel HMI, reading up to 39 I/O pins as touch channels through the same pin multiplexer. Connectivity includes CANbus, I²C, SCI (UART), and SPI — the CAN controller supports standard and extended frames at up to 1 Mbps, adequate for a J1939 or CANopen node on a factory-floor backbone. The 11-channel 12-bit ADC samples analog sensors at up to 1 µs conversion time, sufficient for a three-phase current-sense on a motor drive sampled at 10 kHz. ## Package and board integration The 48-LQFP package with a 7x7 mm body uses a 0.50 mm pitch — hand-solderable in rework but requiring a 4-layer PCB to fan out the inner rows of the QFP. The RX140 series is the current mid-range family in the RX lineup, so the part is safe for a new-design-in with a multi-year production horizon. ROHS3 compliant, no exemptions.","metaTitle":"R5F51406BDFL#10 Renesas RX140 MCU, 48 MHz, 256 KB Flash","metaDescription":"R5F51406BDFL#10 Renesas RX140 32-bit MCU, 48 MHz, 256 KB flash, 64 KB RAM, AES/TRNG/CAN, -40 to 85°C, 48-LQFP. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":"RX140","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"48MHz","Series":"RX140","Package":"Tray","RAM Size":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"8K x 8","Peripherals":"AES, Capacitive Touch, DMA, LVD, POR, PWM, Temp Sensor, TRNG, WDT","Connectivity":"CANbus, I²C, SCI, SPI","Mounting Type":"Surface Mount","Number of I/O":"39","Core Processor":"RXv2","Package / Case":"48-LQFP","Data Converters":"A/D 11x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Program Memory Size":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"48-LFQFP (7x7)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.95","stockQuantity":27,"priceTiers":[{"qty":1,"price":"$3.95000","currency":"USD"},{"qty":10,"price":"$3.58700","currency":"USD"},{"qty":25,"price":"$3.50880","currency":"USD"},{"qty":40,"price":"$3.49000","currency":"USD"},{"qty":80,"price":"$3.12925","currency":"USD"},{"qty":230,"price":"$3.11783","currency":"USD"},{"qty":440,"price":"$3.00391","currency":"USD"},{"qty":2000,"price":"$2.82542","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/553b3af22590916e0689f691c6103527.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the R5F51406BDFL#10's core speed and memory?","answer":"There is also 8 KB of dedicated EEPROM for calibration data that survives firmware updates."},{"question":"Does the R5F51406BDFL#10 have CANbus and cryptographic hardware?","answer":"Yes. The MCU includes a CAN controller for standard/extended frames at up to 1 Mbps, plus an AES accelerator and a true random number generator for secure communication and OTA updates."},{"question":"What temperature range does the R5F51406BDFL#10 support?","answer":"The part runs in an unheated enclosure on a production floor without derating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/R5F51406BDFL10","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/R5F51406BDFL10 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}