{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F101RET6TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F101RET6TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F101RET6TR","factsUrl":"https://icboms.com/api/mcp/products/STM32F101RET6TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F101RET6TR, ARM Cortex-M3 32-bit MCU, 36 MHz, 512 KB Flash, 48 KB SRAM, 64-LQFP, -40 to 85°C, industrial temp.","salesMarkdown":"## 36 MHz Cortex-M3 — the cost-optimised workhorse The STM32F101RET6TR is an STMicroelectronics ARM Cortex-M3 microcontroller running at a 36 MHz core clock — half the speed of the STM32F103 sibling, which is the main trade-off that keeps the BOM cost down for applications that don't need the full 72 MHz throughput. It packs 512 KB of Flash and 48 KB of SRAM, enough for a moderate control stack with a communication protocol layer, and the 64-pin LQFP gives you 51 GPIOs to play with. ## What the 36 MHz ceiling means for your design At 36 MHz the core executes one instruction per cycle for most ARM Thumb-2 operations, so you get roughly 36 MIPS. That's enough to run a Modbus RTU stack, poll a handful of sensors, and update a local display without breaking a sweat. But if your application needs real-time FFT, high-speed motor control loops, or a TCP/IP stack with encryption, the 72 MHz STM32F103 is the better fit — same pinout, same peripherals, just a faster clock and a second ADC. The 512 KB Flash is generous for this class; you can fit a full bootloader, application code, and a small file system for logging without worrying about the next spin. ## Peripheral set and integration For dual-sourcing resilience, the pin-compatible STM32F103RET6TR is the obvious second source — same Flash and SRAM, same package, just the faster core and a second ADC.","metaTitle":"ST STM32F101RET6TR ARM Cortex-M3 MCU, 36 MHz, 512 KB Flash","metaDescription":"STMicroelectronics STM32F101RET6TR 32-bit ARM Cortex-M3 MCU, 36 MHz core, 512 KB Flash, 48 KB SRAM, 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":"36MHz","Series":"STM32F1","Package":"Tape & Reel (TR); Cut Tape (CT)","RAM Size":"48K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"DMA, PDR, POR, PVD, PWM, Temp Sensor, WDT","Connectivity":"I²C, IrDA, LINbus, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"51","Core Processor":"ARM® Cortex®-M3","Package / Case":"64-LQFP","Product Status":"Active","Data Converters":"A/D 16x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32F101","Program Memory Size":"512KB (512K 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":"$10.5900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/fbf302d4f0db56efe66035db5e3aaeca.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F101RET6TR/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between the STM32F101RET6TR and the STM32F103RET6TR?","answer":"The main difference is the core clock speed: the STM32F101 runs at 36 MHz, while the STM32F103 runs at 72 MHz. The F103 also adds a second ADC (two ADCs total vs one) and a USB peripheral. Both share the same 512 KB Flash, 48 KB SRAM, 64-pin LQFP package, and pinout — so you can swap them on the same board if the extra speed or ADC channels are needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F101RET6TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F101RET6TR 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}}