{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F091CBT6TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F091CBT6TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F091CBT6TR","factsUrl":"https://icboms.com/api/mcp/products/STM32F091CBT6TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F091CBT6TR, STM32F0 series, 32-bit ARM Cortex-M0 MCU, 48MHz, 128KB Flash, 32KB RAM, 38 I/O, 2V~3.6V, -40°C~85°C, 48-LQFP.","salesMarkdown":"## 48 MHz Cortex-M0 with 128 KB Flash — what fits in this envelope This is the mid-density sweet spot in the STM32F0 line — enough Flash for a modest RTOS or bare-metal control loop, with the RAM to buffer sensor data or a small communications stack. ## 128 KB / 32 KB — sizing the firmware budget 128 KB of Flash (128K x 8) and 32 KB of RAM (32K x 8) define the boundary for what this chip can run. That Flash holds the application code, bootloader, and any constant lookup tables; 32 KB RAM is enough for a FreeRTOS heap plus a few large buffers, but a TCP/IP stack with multiple sockets will push against the ceiling. The 48 MHz Cortex-M0 core handles the arithmetic and control logic without a hardware FPU or DSP extension — bit-banging and PID loops are fine, but don't plan on FFTs or floating-point filtering without software emulation. ## Connectivity and analog — CAN, 13-channel 12-bit ADC, dual DAC The connectivity set covers CANbus, I²C, SPI, UART/USART, LIN, and IrDA — enough for an industrial sensor hub communicating over CANopen or Modbus RTU. DMA offloads the Cortex-M0 from moving ADC results to RAM, which matters when the core is busy with protocol parsing or control math. The POR (power-on reset) peripheral simplifies the power-up sequencing: no external supervisor IC needed as long as the supply ramp meets the datasheet requirement. ## 48-LQFP — layout and assembly notes The 48-LQFP package (7x7 mm) is surface-mount only. ## Lifecycle — active, no end-of-life watch This is a current-production STM32F0 series part, safe to design into new builds and production ramps. No second-source alternate is recorded on this listing.","metaTitle":"ST STM32F091CBT6TR ARM Cortex-M0 MCU, 48MHz, 128KB Flash","metaDescription":"STMicroelectronics STM32F091CBT6TR 32-bit MCU, ARM Cortex-M0 at 48MHz, 128KB Flash, 32KB RAM, 38 I/O, -40 to 85°C, 48-LQFP. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"48MHz","Series":"STM32F0","Package":"Tape & Reel (TR); Cut Tape (CT)","RAM Size":"32K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"DMA, I²S, POR, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, LINbus, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"38","Core Processor":"ARM® Cortex®-M0","Package / Case":"48-LQFP","Product Status":"Active","Data Converters":"A/D 13x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32F091","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"48-LQFP (7x7)","Voltage - Supply (Vcc/Vdd)":"2V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.7300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/eb815e3c1023a3c34c75039eeb7a4080.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F091CBT6TR/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F091CBT6TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F091CBT6TR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:51:14.863Z","lastPublished":"2026-07-22T18:51:14.863Z","indexable":true}}