{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F103CBU6TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F103CBU6TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F103CBU6TR","factsUrl":"https://icboms.com/api/mcp/products/STM32F103CBU6TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F1 series ARM Cortex-M3 32-bit MCU, STM32F103CBU6TR, 72MHz, 128KB Flash, 20K x 8 RAM, 37 I/O, 48-UFQFPN (7x7) package, -40 to 85°C.","salesMarkdown":"## 72 MHz Cortex-M3 with 128 KB flash — what the memory split means for your firmware The STM32F103CBU6TR: For a typical motor-control or CAN-gateway application, the flash holds the application code plus a small RTOS kernel; the 20 KB SRAM leaves room for a few communication buffers and a modest call stack. ## Peripheral set — CAN, USB, and motor-control PWM on one die Connectivity includes CANbus, USB, I2C, SPI, UART/USART, IrDA, and LINbus. The motor-control PWM timer and DMA controller make this a natural fit for a brushless-DC drive or a servo axis controller. The 10-channel 12-bit ADC samples current-sense or position-feedback signals without an external converter. 37 GPIOs are available in the 48-pin package — enough for a keypad, a small display, and a few encoder inputs. ## Package and board-fit — 48-UFQFPN with exposed pad Surface-mount assembly with the tape-and-reel packaging suits automated pick-and-place lines. ## Supply and temperature — single-rail 2-3.6V, industrial range Operates from a single 2V to 3.6V supply — a 3.3V rail powers the core and I/O without a separate core regulator. ROHS3 compliant.","metaTitle":"STM32F103CBU6TR STM32F1 MCU, 72MHz, 128KB Flash, 48-UFQFPN","metaDescription":"STM32F103CBU6TR ARM Cortex-M3 MCU, 72MHz, 128KB flash, 20KB RAM, 37 I/O, CAN/USB, -40 to 85°C. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":"STM32F1","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"72MHz","Series":"STM32F1","Package":"Tape & Reel (TR) Cut Tape (CT)","RAM Size":"20K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"DMA, Motor Control PWM, PDR, POR, PVD, PWM, Temp Sensor, WDT","Connectivity":"CANbus, I2C, IrDA, LINbus, SPI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"37","Core Processor":"ARM® Cortex®-M3","Package / Case":"48-UFQFN Exposed Pad","Product Status":"Active","Data Converters":"A/D 10x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32F103","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"48-UFQFPN (7x7)","Voltage - Supply (Vcc/Vdd)":"2V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.8400","priceTiers":[{"qty":1,"price":"$6.84000","currency":"USD"},{"qty":10,"price":"$6.17700","currency":"USD"},{"qty":25,"price":"$5.88960","currency":"USD"},{"qty":100,"price":"$5.11400","currency":"USD"},{"qty":250,"price":"$4.88416","currency":"USD"},{"qty":500,"price":"$4.45322","currency":"USD"},{"qty":1000,"price":"$3.87861","currency":"USD"},{"qty":2500,"price":"$3.73496","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/b951295a5a701632768131870cfc7618.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F103CBU6TR/alternatives.json"},"ai":{"faq":[{"question":"How does STM32F103CBU6TR compare to STM32L151CBU6A?","answer":"The STM32L151CBU6A runs a Cortex-M3 at 32 MHz (half the speed) and draws less power, but it has a different peripheral set (includes capacitive sensing and a DAC) and comes in a tray package rather than tape-and-reel. The two are not pin-compatible drop-in replacements — a board spin is required to swap between them."},{"question":"What compliance documentation does STMicroelectronics provide for STM32F103CBU6TR?","answer":"The part is ROHS3 compliant. Standard STMicroelectronics documentation includes the datasheet, reference manual, and application notes for the STM32F1 series. No UL or IEC certification is listed for this MCU."},{"question":"Where can I buy STM32F103CBU6TR and check availability?","answer":"Submit an RFQ for a firm price and lead-time estimate."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F103CBU6TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F103CBU6TR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}