{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F303CBT7","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F303CBT7","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F303CBT7","factsUrl":"https://icboms.com/api/mcp/products/STM32F303CBT7","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F303CBT7, STM32F3 series, 32-bit ARM Cortex-M4 MCU, 72 MHz, 128 KB Flash, 32K x 8 SRAM, 37 I/O, CANbus/I²C/SPI/USART/USB, 48-LQFP, -40°C to 105°C.","salesMarkdown":"## 72 MHz Cortex-M4 with floating-point — what it handles ## Analog integration — ADC and DAC count Fifteen 12-bit ADC channels and two 12-bit DAC channels are on-chip. For a sensor-interface design, that ADC count covers multiple analog inputs (current sense, voltage feedback, temperature) without an external multiplexer. The DACs can generate analog setpoints or bias voltages. Combined with the built-in DMA, the ADC can sample and transfer results to memory without CPU intervention — useful for continuous monitoring loops. ## Lifecycle status — active production ST lists the STM32F303CBT7 as Active. The base product number STM32F303 covers a density range, so if the firmware outgrows 128 KB Flash, the pin-compatible STM32F303CCT7 (256 KB) is a drop-in swap without a board respin. The I²S interface handles audio-class data streams.","metaTitle":"STM32F303CBT7 STM32F3 ARM Cortex-M4 MCU, 72 MHz","metaDescription":"STMicroelectronics STM32F303CBT7 32-bit ARM Cortex-M4 MCU, 72 MHz, 128 KB Flash, 32 KB SRAM, 48-LQFP, -40°C to 105°C. Active lifecycle.","metaKeywords":null},"attributes":{"series":"STM32F3","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"72MHz","Series":"STM32F3","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, USB","Mounting Type":"Surface Mount","Number of I/O":"37","Core Processor":"ARM® Cortex®-M4","Package / Case":"48-LQFP","Product Status":"Active","Data Converters":"A/D 15x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32F303","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~105°C(TA)","Supplier Device Package":"48-LQFP (7x7)","Voltage - Supply (Vcc/Vdd)":"2V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.7100","priceTiers":[{"qty":1,"price":"$7.71000","currency":"USD"},{"qty":10,"price":"$6.96400","currency":"USD"},{"qty":25,"price":"$6.63960","currency":"USD"},{"qty":80,"price":"$5.76513","currency":"USD"},{"qty":250,"price":"$5.50604","currency":"USD"},{"qty":500,"price":"$5.02020","currency":"USD"},{"qty":1000,"price":"$4.41660","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a474e904fc1228ff23e70edcbd9a36eb.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F303CBT7/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between STM32F303CBT7 and STM32F303CCT7?","answer":"The STM32F303CCT7 doubles the Flash to 256 KB. Everything else — pinout, package, peripherals, supply range, temperature grade — is identical. If your firmware fits in 128 KB, the CBT7 is the cost-optimized choice; the CCT7 is the drop-in upgrade path for code growth."},{"question":"What is the equivalent of STM32F303CBT7?","answer":"Within the STM32F3 series, the pin-compatible STM32F303CCT7 (256 KB Flash) is the direct Flash-density upgrade. The STM32L151CBU6A is a different architecture (Cortex-M3 at 32 MHz, lower power) and is not a pin-compatible replacement — it targets battery-operated designs where the F3's FPU and higher clock are not needed."},{"question":"Is STM32F303CBT7 obsolete?","answer":"No. The lifecycle status is Active. ST continues to manufacture this part, and there is no announced discontinuation or last-time-buy schedule."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F303CBT7","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F303CBT7 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}}