{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM8L151K6U3TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM8L151K6U3TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM8L151K6U3TR","factsUrl":"https://icboms.com/api/mcp/products/STM8L151K6U3TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM8L151K6U3TR, STM8 series 8-bit MCU, 16 MHz, 32 KB Flash, 2K x 8 RAM, 1K x 8 EEPROM, 30 I/O, I²C/SPI/UART/IrDA, 22x12b ADC + 1x12b DAC, -40°C to 125°C, 32-UFQFN exposed pad.","salesMarkdown":"## 16 MHz 8-bit core with 32 KB Flash — memory sizing for a single-chip sensor node That memory split — particularly the separate EEPROM block — means calibration constants, node addresses, or boot parameters live in nonvolatile storage without wearing the Flash array or requiring an external serial EEPROM. The 2 KB RAM is the working-data ceiling; for a typical sensor node running a 10 ms control loop with a 256-byte ADC buffer, you have room left for a modest protocol stack. The 22-channel 12-bit ADC and single 12-bit DAC cover analog front-end needs without external converters. ## Temperature range and supply — rated for the industrial floor Brown-out detect and POR are integrated, so the reset supervisor is on-chip — one less external component to budget. ## Connectivity and peripherals — what the serial bus map looks like The UART handles RS-232 or RS-485 with an external transceiver; the SPI can talk to external Flash or a display controller at the 16 MHz core speed. IrDA is less common on 8-bit parts — useful if the design needs an optical isolation barrier or a wireless IR link. The 30 I/O pins in the 32-UFQFN package leave two pins for the external oscillator (though the internal oscillator is available) and the rest for GPIO and peripheral functions. DMA is listed among the peripherals, which offloads data transfers from the core. ## Package and footprint — 32-UFQFN with exposed pad The package is a 32-lead UFQFN with an exposed pad (5x5 mm body). ## Lifecycle — active, no near-term EOL concern","metaTitle":"ST STM8L151K6U3TR 8-bit MCU, 16 MHz, 32 KB Flash, 2 KB RAM","metaDescription":"STMicroelectronics STM8L151K6U3TR 8-bit MCU, 16 MHz core, 32 KB Flash, 2 KB RAM, 1 KB EEPROM, 22-ch 12-bit ADC, -40°C to 125°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":"16MHz","Series":"STM8","Package":"Tape & Reel (TR)","RAM Size":"2K x 8","Core Size":"8-Bit","EEPROM Size":"1K x 8","Peripherals":"Brown-out Detect/Reset, DMA, IR, POR, PWM, WDT","Connectivity":"I²C, IrDA, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"30","Core Processor":"STM8","Package / Case":"32-UFQFN Exposed Pad","Product Status":"Active","Data Converters":"A/D 22x12b; D/A 1x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM8","Program Memory Size":"32KB (32K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~125°C(TA)","Supplier Device Package":"32-UFQFPN (5x5)","Voltage - Supply (Vcc/Vdd)":"1.65V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.8069","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/dd106f8949d2da40301a06d651705102.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM8L151K6U3TR/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the STM8L151K6U3TR?","answer":"Within the STM8L151 series, the STM8L151K6T6 (LQFP-32) shares the same core and memory but uses a different package footprint. The UFQFN-32 variant is not directly pin-compatible with the LQFP version due to the different lead pitch and body size. For a true drop-in replacement, look at other STM8L151K6 variants in the same 32-UFQFN package, such as the STM8L151K6U6 (extended temperature range). Verify the specific temperature grade and package code before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM8L151K6U3TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM8L151K6U3TR 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}}