{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F100R8T7B","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F100R8T7B","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F100R8T7B","factsUrl":"https://icboms.com/api/mcp/products/STM32F100R8T7B","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F1 series ARM Cortex-M3 MCU, STM32F100R8T7B, 32-bit, 24 MHz, 64KB Flash, 8KB RAM, 51 I/O, 64-LQFP, -40 to 105°C.","salesMarkdown":"## Core architecture and memory map The STM32F100R8T7B is a 32-bit microcontroller built around the ARM Cortex-M3 core, clocked at 24 MHz. This core delivers a balance of processing throughput and low power for control-loop and sensor-fusion tasks. On-chip memory comprises 64 KB of Flash for program storage and 8 KB of SRAM for data and stack, organized as 8K x 8. The 64 KB Flash is adequate for moderate firmware images; the 8 KB SRAM supports a typical RTOS kernel plus a few communication buffers. ## I/O and peripheral set 51 general-purpose I/O lines are available in the 64-LQFP package, enough to interface with a keypad, a small TFT display over parallel bus, and several sensors without an external GPIO expander. The LIN interface makes this part a fit for automotive body-control modules such as window lifts or seat adjusters that communicate on a LIN cluster. Additional on-chip blocks include DMA for memory-to-peripheral transfers without CPU load, a programmable watchdog timer, and a temperature sensor. The PVD (programmable voltage detector) and POR/PDR circuits handle brown-out and power-on reset internally. ## Package and board integration Housed in a 64-lead LQFP with a 10x10 mm body and 0.5 mm pitch. The part is ROHS3 compliant, so no special handling for lead-free solder is required. Sourced through independent and authorized distribution channels. The base product number is STM32F100, and the full order code is STM32F100R8T7B.","metaTitle":"STM32F100R8T7B STM32F1 MCU, 24 MHz Cortex-M3, 64KB Flash","metaDescription":"STMicroelectronics STM32F100R8T7B, ARM Cortex-M3 MCU, 24 MHz, 64KB Flash, 8KB RAM, 51 I/O, -40 to 105°C, 64-LQFP. Active production, ROHS3. Request quote.","metaKeywords":null},"attributes":{"series":"STM32F1","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"24MHz","Series":"STM32F1","Package":"Tray","RAM Size":"8K 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":"STM32F100","Program Memory Size":"64KB (64K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 105°C (TA)","Supplier Device Package":"64-LQFP (10x10)","Voltage - Supply (Vcc/Vdd)":"2V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.0300","priceTiers":[{"qty":1,"price":"$6.03000","currency":"USD"},{"qty":10,"price":"$5.41100","currency":"USD"},{"qty":25,"price":"$5.11600","currency":"USD"},{"qty":160,"price":"$4.43375","currency":"USD"},{"qty":320,"price":"$4.20638","currency":"USD"},{"qty":480,"price":"$3.77435","currency":"USD"},{"qty":960,"price":"$3.18320","currency":"USD"},{"qty":2400,"price":"$3.02404","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/bce8111c76ae6a908001d11363aee0ec.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F100R8T7B/alternatives.json"},"ai":{"faq":[{"question":"What is STM32F100R8T7B's core speed and memory?","answer":"The Cortex-M3 core runs at 24 MHz. On-chip memory is 64 KB Flash and 8 KB SRAM."},{"question":"Is STM32F100R8T7B pin-compatible with STM32L151CBU6A?","answer":"No. The STM32L151CBU6A is in a different package (UFBGA) and has a different pinout. The STM32F100R8T7B uses a 64-LQFP footprint; a board spin is required to swap between the two."},{"question":"What compliance documentation is available for STM32F100R8T7B?","answer":"STMicroelectronics provides ROHS3 compliance certification. No UL, IEC, or REACH documentation is listed in the available product data."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F100R8T7B","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F100R8T7B 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}}