{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM8S207RBT6CTR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM8S207RBT6CTR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM8S207RBT6CTR","factsUrl":"https://icboms.com/api/mcp/products/STM8S207RBT6CTR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM8S207RBT6CTR, 8-bit STM8 core MCU, 24MHz, 128KB Flash, 6KB RAM, 2KB EEPROM, 52 I/O, 16x10b ADC, I²C/SPI/UART/LIN, -40 to 85°C, 64-LQFP, Tape & Reel.","salesMarkdown":"## 128 KB Flash, 24 MHz — the mid-range STM8S workhorse ## What the 24 MHz and 128 KB Flash mean for the BOM The 24 MHz clock speed is the ceiling for this 8-bit core — enough for UART polling at 115200 baud, sensor readout loops, and PWM generation at audio frequencies, but not for heavy DSP or real-time control loops that would push a Cortex-M0 at 48 MHz. The 128 KB Flash is the mid-density option in the STM8S207 line, sitting between 64 KB and 256 KB parts; it fits firmware images with a moderate protocol stack (e.g., Modbus RTU, CANopen) plus application code, but leaves no room for over-the-air update staging without external memory. The 6 KB RAM is tight for buffering — a single 2 KB UART receive buffer plus a 1 KB stack leaves 3 KB for variables. Designs that need larger packet buffers or multiple DMA descriptors should budget for an external SRAM or step up to the STM8S208 with more RAM. The 2 KB EEPROM is useful for calibration constants and configuration parameters that survive a firmware update, since it is separate from the Flash program space. ## Peripheral set and sensor interface fit The 16-channel 10-bit ADC covers a typical sensor array (temperature, pressure, current sense, potentiometer) without an external mux. The 52 I/O lines leave headroom for a parallel LCD data bus, keypad matrix, and several status LEDs alongside the serial interfaces. The built-in brown-out detect, POR, and watchdog reduce external supervisor IC cost on the BOM. Connectivity includes I²C and SPI for local peripherals (EEPROM, DAC, digital pot), plus UART/USART and LINbus for industrial fieldbus or automotive subnets. IrDA support is present but rarely used in new designs — it is a legacy compatibility feature. ## Package, temperature grade, and supply rails Supply voltage from 2.95V to 5.5V lets the MCU run directly on a 3.3V regulated rail or a 5V unregulated supply (e.g., from a USB port or an industrial 5V backplane).","metaTitle":"ST STM8S207RBT6CTR 8-bit MCU, 128KB Flash, 24MHz, 64-LQFP","metaDescription":"STMicroelectronics STM8S207RBT6CTR 8-bit MCU with 128KB Flash, 6KB RAM, 2KB EEPROM, 24MHz core, 52 I/O, 16x10b ADC, -40 to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"24MHz","Series":"STM8S","Package":"Tape & Reel (TR)","RAM Size":"6K x 8","Core Size":"8-Bit","EEPROM Size":"2K x 8","Peripherals":"Brown-out Detect/Reset, POR, PWM, WDT","Connectivity":"I²C, IrDA, LINbus, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"52","Core Processor":"STM8","Package / Case":"64-LQFP","Product Status":"Active","Data Converters":"A/D 16x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM8","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"64-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"2.95V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.9305","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4fe35ac7807dc4df878cebc90e42bfde.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM8S207RBT6CTR/alternatives.json"},"ai":{"faq":[{"question":"What are the key differences between STM8S207RBT6CTR and STM8S207RBT6?","answer":"The only difference is the packaging suffix: the CT suffix indicates Tape & Reel (TR) packaging for automated pick-and-place, while the base STM8S207RBT6 ships in trays or tubes. The silicon, pinout, and all electrical specifications are identical."},{"question":"Does STM8S207RBT6CTR have a built-in DAC?","answer":"No. The STM8S207RBT6CTR includes a 16-channel 10-bit ADC but does not have a built-in DAC. For analog output, an external DAC or PWM with a low-pass filter is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM8S207RBT6CTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM8S207RBT6CTR 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}}