{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F091RBT6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F091RBT6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F091RBT6","factsUrl":"https://icboms.com/api/mcp/products/STM32F091RBT6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F091RBT6, STM32F0 series, 32-Bit Single-Core ARM Cortex-M0 MCU, 48 MHz, 128KB Flash, 32K x 8 RAM, CAN/I²C/SPI/UART, 52 I/O, 64-LQFP, -40 to 85°C.","salesMarkdown":"## 48 MHz Cortex-M0 — enough for most sensor-fusion and control loops The 64-LQFP (10x10 mm) package gives you 52 GPIO in a hand-solderable footprint, so no BGA rework is needed for prototype or low-volume builds. ## 19-channel ADC and dual DAC — mixed-signal without an external mux That ADC channel count is unusually high for a 64-pin MCU, so you can read multiple analog sensors (thermistors, potentiometers, current shunts) without adding an external multiplexer. The dual DAC is handy for generating analog set-points or driving a small analog meter directly. The I²S peripheral also allows direct connection to audio codecs or digital microphones if the application needs sound capture. ## Industrial temperature range and active lifecycle The product status is Active, meaning ST is still manufacturing and supporting this part — no last-time-buy risk for new designs. It is ROHS3 compliant.","metaTitle":"STM32F091RBT6 STM32F0 ARM Cortex-M0 MCU, 48 MHz","metaDescription":"STM32F091RBT6 32-bit MCU: ARM Cortex-M0 at 48 MHz, 128 KB Flash, 32 KB SRAM, 19-ch 12-bit ADC, CAN, 64-LQFP. Active lifecycle, industrial temp.","metaKeywords":null},"attributes":{"series":"STM32F0","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"48MHz","Series":"STM32F0","Package":"Tray","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":"52","Core Processor":"ARM® Cortex®-M0","Package / Case":"64-LQFP","Product Status":"Active","Data Converters":"A/D 19x12b; 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":"64-LQFP (10x10)","Voltage - Supply (Vcc/Vdd)":"2V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.7100","priceTiers":[{"qty":1,"price":"$5.71000","currency":"USD"},{"qty":10,"price":"$5.12700","currency":"USD"},{"qty":25,"price":"$4.84720","currency":"USD"},{"qty":80,"price":"$4.20075","currency":"USD"},{"qty":230,"price":"$3.98530","currency":"USD"},{"qty":440,"price":"$3.57602","currency":"USD"},{"qty":960,"price":"$3.01592","currency":"USD"},{"qty":2880,"price":"$2.86513","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/eb815e3c1023a3c34c75039eeb7a4080.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F091RBT6/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum frequency of STM32F091RBT6?","answer":"The core runs at 48 MHz. That is the ceiling for the STM32F0 series — enough for most sensor-fusion loops and control algorithms without needing a Cortex-M3."},{"question":"Is STM32F091RBT6 compatible with STM32F051?","answer":"Both are STM32F0 parts with the same Cortex-M0 core at 48 MHz, but the STM32F091RBT6 offers more memory (128 KB Flash vs 64 KB on the STM32F051K6U7) and more ADC channels (19 vs 13). The STM32F051K6U7 comes in a smaller 32-pin package and includes HDMI-CEC. They are not pin-compatible, but software can be ported with minor changes."},{"question":"How to program STM32F091RBT6?","answer":"It uses the standard ARM Serial Wire Debug (SWD) interface. ST's ST-Link programmer or any CMSIS-DAP probe works. The internal oscillator means you can bring up the core without an external crystal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F091RBT6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F091RBT6 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}}