{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F334R6T6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F334R6T6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F334R6T6","factsUrl":"https://icboms.com/api/mcp/products/STM32F334R6T6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F3 series STM32F334R6T6, ARM Cortex-M4, 32-bit, 72 MHz, 32 KB Flash, 12 KB RAM, 21x12b ADC, 3x12b DAC, CANbus, I²C, SPI, UART, 51 I/O, 64-LQFP, -40 to 85°C.","salesMarkdown":"## What the 72 MHz Cortex-M4 and 32 KB Flash mean for your control loop ## Peripheral mix: analog density and connectivity The 21x12b ADC covers a lot of analog inputs — typical for a three-phase motor drive reading shunt resistors plus a PFC stage. The three 12-bit DACs can generate reference voltages or analog control signals for external power-stage setpoints. DMA and PWM timers are built in, so the CPU can run the control algorithm while the peripherals handle the data movement and waveform generation. ## Package and temperature: 64-LQFP, industrial range This covers factory-floor electronics, outdoor telecom cabinets, and HVAC controllers, but not under-hood automotive (that would need the -40 to 125°C or AEC-Q100 variants). ## Supply voltage and power management The POR and watchdog peripherals are on-chip, reducing the need for external supervisor ICs. STMicroelectronics lists the STM32F334R6T6 with an active lifecycle status. The STM32F334 series is a current mainstream offering, so supply through the independent distribution channel is consistent. ## Compatibility across the STM32F334 density options The STM32F334R6T6 sits in the 32 KB Flash / 12 KB RAM tier. The same 64-LQFP footprint is shared with the STM32F334R4T6 (16 KB Flash) and STM32F334R8T6 (64 KB Flash). If your firmware outgrows 32 KB, the R8 variant is a pin-compatible drop-in with double the code space and the same 72 MHz core and peripheral set. If cost is tight and your code fits in 16 KB, the R4 saves a few cents per unit. The RAM stays at 12 KB across all three, so the data buffer budget doesn't change.","metaTitle":"ST STM32F334R6T6 ARM Cortex-M4 MCU, 72 MHz, 32 KB Flash","metaDescription":"STMicroelectronics STM32F334R6T6 32-bit ARM Cortex-M4 MCU, 72 MHz, 32 KB Flash, 12 KB RAM, 21x12b ADC, 3x12b DAC, CAN, 64-LQFP, -40 to 85°C. 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":"72MHz","Series":"STM32F3","Package":"Tray","RAM Size":"12K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"DMA, POR, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, LINbus, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"51","Core Processor":"ARM® Cortex®-M4","Package / Case":"64-LQFP","Product Status":"Active","Data Converters":"A/D 21x12b; D/A 3x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32F334","Program Memory Size":"32KB (32K 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":"$6.7100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8a888bd6c4c82b6773e27135551f6f4a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F334R6T6/alternatives.json"},"ai":{"faq":[{"question":"Can I use the STM32F334R6T6 as a replacement for the STM32F334R4T6?","answer":"Yes, the STM32F334R6T6 is a pin-compatible upgrade from the STM32F334R4T6. Both share the same 64-LQFP footprint, 72 MHz Cortex-M4 core, and peripheral set. The R6 doubles the Flash from 16 KB to 32 KB, so it is a drop-in replacement if your firmware fits within the larger memory."},{"question":"What is the STM32F334R6T6's listed speed?","answer":"The core runs at 72 MHz. That is the maximum clock for the ARM Cortex-M4 in this device, with a single-cycle multiply and hardware divide, plus a single-precision FPU for floating-point control algorithms."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F334R6T6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F334R6T6 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}}