{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"R7FA4M3AF2CBM#BC0","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"R7FA4M3AF2CBMBC0","canonicalUrl":"https://icboms.com/renesas/R7FA4M3AF2CBMBC0","factsUrl":"https://icboms.com/api/mcp/products/R7FA4M3AF2CBM%23BC0","rawCanonicalId":null},"summary":{"shortDescription":"Renesas RA4M3 series, R7FA4M3AF2CBM#BC0, 32-Bit Single-Core ARM Cortex-M33, 100MHz, 1MB Flash, 128K x 8 RAM, 8K x 8 EEPROM, 109 I/O, 144-LFBGA, -40°C to 85°C.","salesMarkdown":"## RA4M3 — 100 MHz Cortex-M33 with security and touch The Renesas R7FA4M3AF2CBM#BC0 is a 32-bit single-core ARM Cortex-M33 microcontroller from the RA4M3 series, clocked at 100 MHz. It carries 1 MB of Flash program memory, 128 KB of SRAM, and 8 KB of on-chip EEPROM — enough code and data space for a control loop with a modest UI stack, and the EEPROM saves an external serial memory for calibration or configuration parameters. The peripheral set includes AES, RSA, and SHA hardware accelerators, a capacitive touch sensing unit, DMA, POR, LVD, a temperature sensor, and a watchdog timer. Connectivity runs to CANbus, USB, I²C, SPI, QSPI, UART/USART, SCI, Serial Sound, and MMC/SD. The part is supplied in a 144-ball LFBGA (7x7 mm) package and operates from 2.7 V to 3.6 V over -40°C to 85°C. Typical applications span IoT edge nodes, industrial control panels, HMI interfaces, and secure communication gateways where the integrated crypto block offloads the CPU from TLS/SSL handshakes. ## Memory and peripheral sizing for the BOM The 1 MB Flash and 128 KB RAM cover a FreeRTOS application with a TCP/IP stack and a touch GUI frame buffer. The 8 KB EEPROM is rated for 100k write cycles — useful for storing calibration offsets or device serial numbers without wear-leveling logic. The 109 I/O lines in the 144-LFBGA give headroom for a parallel LCD interface, external memory bus, and multiple sensor inputs on a single board. The 22-channel 12-bit SAR ADC and dual 12-bit DAC handle analog front-end tasks like current sensing or audio output without an external converter. ## Connectivity and security in a single package The CANbus interface (one channel) suits this MCU for industrial fieldbus nodes or automotive aftermarket gateways. USB with host/device capability supports firmware updates over a thumb drive or direct connection to a PC. The AES, RSA, and SHA accelerators are key for IoT designs that need encrypted OTA updates or secure boot — the crypto engine runs independently so the 100 MHz Cortex-M33 stays free for application code. Capacitive touch eliminates mechanical buttons on a front panel, reducing BOM count and improving IP-rated seal integrity.","metaTitle":"Renesas R7FA4M3AF2CBM#BC0 RA4M3 MCU, ARM Cortex-M33 100MHz","metaDescription":"R7FA4M3AF2CBM#BC0 Renesas RA4M3 32-bit MCU with 1MB Flash, 128KB RAM, 8KB EEPROM, CAN, USB, AES/RSA. Active production. Available to order.","metaKeywords":null},"attributes":{"series":"RA4M3","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Speed":"100MHz","Series":"RA4M3","Package":"Tray","RAM Size":"128K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"8K x 8","Peripherals":"Capacitive Touch, Crypto - AES, DMA, LVD, POR, PWM, RSA, SHA, Temp Sensor, WDT","Connectivity":"CANbus, I²C, MMC/SD, QSPI, Serial Sound, SCI, SPI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"109","Core Processor":"ARM® Cortex®-M33","Package / Case":"144-LFBGA","Data Converters":"A/D 22x12b SAR; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Program Memory Size":"1MB (1M x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"144-LFBGA (7x7)","Voltage - Supply (Vcc/Vdd)":"2.7V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.15","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$8.15000","currency":"USD"},{"qty":10,"price":"$7.36100","currency":"USD"},{"qty":25,"price":"$7.01880","currency":"USD"},{"qty":80,"price":"$6.09450","currency":"USD"},{"qty":230,"price":"$5.82061","currency":"USD"},{"qty":440,"price":"$5.30705","currency":"USD"},{"qty":2080,"price":"$4.45107","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ab7a577e2ddfe4c4408517ca8423e152.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does R7FA4M3AF2CBM#BC0 have a built-in CAN interface?","answer":"Yes, it includes one CANbus interface, along with USB, I²C, SPI, QSPI, UART/USART, SCI, Serial Sound, and MMC/SD."},{"question":"What is the difference between RA4M3 and RA6M2?","answer":"The RA4M3 runs at 100 MHz with a Cortex-M33 core; the RA6M2 runs at 200 MHz with a Cortex-M4 core and typically offers more memory and a higher-performance FPU. The RA4M3 is the mid-range choice for secure IoT and industrial control, while the RA6M2 targets compute-intensive applications like motor control with floating-point math."},{"question":"Can R7FA4M3AF2CBM#BC0 be used for IoT applications?","answer":"Yes, the integrated AES/RSA/SHA accelerators, capacitive touch, USB, and CANbus make it well-suited for IoT edge nodes, secure gateways, and HMI panels."},{"question":"Where can I buy R7FA4M3AF2CBM#BC0?","answer":"This part is sourced to order. Availability and pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/R7FA4M3AF2CBMBC0","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/R7FA4M3AF2CBMBC0 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}}