{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F103VBT7","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F103VBT7","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F103VBT7","factsUrl":"https://icboms.com/api/mcp/products/STM32F103VBT7","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F1 series, STM32F103VBT7, ARM Cortex-M3, 32-Bit Single-Core, 72MHz, 128KB Flash, 20K x 8 RAM, 80 I/O, CANbus/I²C/SPI/USB, 100-LQFP, -40 to 105°C.","salesMarkdown":"For a procurement desk, that means no urgency to stockpile or qualify a replacement — the supply channel is stable and the manufacturer continues to fab and test this code. ## What the 72 MHz and 128 KB Flash mean for your BOM The 72 MHz core clock is the practical ceiling for real-time control loops — sensor polling, PID updates, and communication stack processing all share this bandwidth. At this speed, the flash requires one wait state for zero-wait execution; the Cortex-M3 prefetch buffer helps keep the pipeline fed. The 128 KB Flash is the mid-density tier in the STM32F103 line; firmware that fits in 128 KB today leaves no headroom for major OTA updates or feature additions without a spin to a higher-density sibling. The 20 KB SRAM is the working memory for stack, heap, and DMA buffers — a USB descriptor set or a CAN message queue will consume several kilobytes, so budget the RAM allocation early in the firmware design. ## 80 I/O in a 100-LQFP — footprint and routing The 100-pin LQFP (14x14 mm body) gives the designer 80 usable GPIOs. That is enough to drive a parallel LCD data bus, read a bank of sensors, and still have pins left for UART, SPI, and I²C without multiplexing.","metaTitle":"STM32F103VBT7 STM32F1 ARM Cortex-M3 MCU, 72 MHz","metaDescription":"STM32F103VBT7 32-bit ARM Cortex-M3 MCU, 72 MHz core, 128 KB Flash, 20 KB SRAM, 80 I/O, -40 to 105°C, 100-LQFP. Active lifecycle.","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":"Tray","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":"80","Core Processor":"ARM® Cortex®-M3","Package / Case":"100-LQFP","Product Status":"Active","Data Converters":"A/D 16x12b","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 ~ 105°C (TA)","Supplier Device Package":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"2V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$9.0400","priceTiers":[{"qty":1,"price":"$9.04000","currency":"USD"},{"qty":10,"price":"$8.16500","currency":"USD"},{"qty":25,"price":"$7.78520","currency":"USD"},{"qty":90,"price":"$6.75978","currency":"USD"},{"qty":270,"price":"$6.45593","currency":"USD"},{"qty":450,"price":"$5.88629","currency":"USD"},{"qty":990,"price":"$5.12676","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ee18814be9a61431b80fb87c2c23e468.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F103VBT7/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between STM32F103VBT7 and STM32F103VBT6?","answer":"The primary difference is the temperature grade. The VBT7 variant is the extended-temperature version, suited for industrial and automotive-adjacent environments where the ambient temperature exceeds 85°C. All other specifications — 72 MHz core, 128 KB Flash, 20 KB SRAM, 80 I/O, 100-LQFP package — are identical between the two order codes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F103VBT7","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F103VBT7 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}}