{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F103RCY6TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F103RCY6TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F103RCY6TR","factsUrl":"https://icboms.com/api/mcp/products/STM32F103RCY6TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F1 series, ARM® Cortex®-M3, 32-Bit Single-Core, 72MHz, 256KB (256K x 8) FLASH, 48K x 8 RAM, 64-UFBGA, WLCSP, -40°C~85°C (TA), 2V ~ 3.6V.","salesMarkdown":"STM32F103RCY6TR is a 72 MHz ARM Cortex-M3 MCU with 256 KB Flash and 48 KB SRAM in a 64-WLCSP package. ## 72 MHz Cortex-M3 — what the speed rating buys you The 72 MHz Cortex-M3 core executes most single-cycle instructions, suitable for real-time control loops and moderate protocol handling. ## 256 KB Flash and 48 KB SRAM — sizing the firmware budget The 48 KB SRAM is shared between stack, heap, and DMA buffers — watch the linker map if you plan large frame buffers or double-buffered ADC captures. The Flash is single-bank, so simultaneous read-while-write is not supported; OTA updates require a two-stage bootloader that copies from an external memory or a reserved upper bank. ## 64-WLCSP — what the package means for assembly and layout The 64-WLCSP package has fine-pitch balls requiring an HDI PCB stackup with microvias to route all 51 I/Os. The base product number STM32F103 covers a range of density and package options; a pin-compatible LQFP or BGA variant can serve as a second-source path.","metaTitle":"STM32F103RCY6TR STM32F1 ARM Cortex-M3 MCU, 72 MHz","metaDescription":"STMicroelectronics STM32F103RCY6TR 32-bit ARM Cortex-M3 MCU, 72 MHz core, 256 KB Flash, 48K x 8 RAM, 64-WLCSP package. Active lifecycle, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"72MHz","Series":"STM32F1","Package":"Tape & Reel (TR); Cut Tape (CT)","RAM Size":"48K 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":"51","Core Processor":"ARM® Cortex®-M3","Package / Case":"64-UFBGA, WLCSP","Product Status":"Active","Data Converters":"A/D 16x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32F103","Program Memory Size":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"64-WLCSP (4.47×4.4)","Voltage - Supply (Vcc/Vdd)":"2V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$9.2500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/72e2217711e2aa33719949448f146656.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F103RCY6TR/alternatives.json"},"ai":{"faq":[{"question":"Is STM32F103RCY6TR active or obsolete?","answer":"It is active. It is safe for new designs and production."},{"question":"Does STM32F103RCY6TR come in tape and reel packaging?","answer":"Yes, the STM32F103RCY6TR is available in Tape & Reel (TR) packaging, as well as Cut Tape (CT)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F103RCY6TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F103RCY6TR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}