{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F048T6Y6TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F048T6Y6TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F048T6Y6TR","factsUrl":"https://icboms.com/api/mcp/products/STM32F048T6Y6TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F0 series ARM® Cortex®-M0 32-bit MCU, STM32F048T6Y6TR, 48 MHz, 32 KB Flash, 6K x 8 RAM, 1.65V-1.95V supply, 36-WLCSP, -40°C to 85°C.","salesMarkdown":"## 48 MHz Cortex-M0 in a 1.65V WLCSP — the low-power, small-footprint MCU for space-constrained battery gear Its distinguishing feature is the supply range: 1.65V to 1.95V, which lets it run directly from a single Li-ion cell or a 1.8V regulated rail without an external boost converter. The 36-bump WLCSP package (36-UFBGA, WLCSP) keeps the board footprint minimal — critical for wearable sensors, hearing aids, or compact IoT modules. The 13-channel 12-bit ADC and internal oscillator reduce external BOM count. ## 1.65V rail — what the low supply buys you Most STM32F0 parts need 2.0V to 3.6V. The STM32F048T6Y6TR's 1.65V to 1.95V range is a deliberate low-voltage variant. In a single-cell Li-ion design (3.7V nominal, 2.7V cut-off) you'd normally need a buck regulator. Here, a small LDO from the battery to 1.8V feeds the MCU directly — saves a switching regulator inductor and capacitor. For 1.8V-logic systems (many MEMS sensors, low-power RF chips), the MCU sits on the same rail as the peripherals, no level shifters needed. ## WLCSP footprint — layout and rework realities The 36-bump WLCSP (36-UFBGA, WLCSP) is a direct-attach package with 0.4 mm or 0.5 mm pitch depending on the variant — the supplier device package is 36-WLCSP. No exposed pad, no corner balls to route out. The board needs micro-vias or via-in-pad if the escape routing is tight. For hand-assembly prototypes, consider a breakout board or a socket — the WLCSP bumps are not probe-friendly. ## 32 KB Flash, 6K x 8 RAM — memory headroom for typical firmware 32 KB Flash and 6 KB SRAM place this MCU in the entry-level tier. Enough for a sensor hub reading an IMU over I²C, logging data to a serial Flash via SPI, and running a USB HID or CDC class. The 6 KB RAM handles a small RTOS (FreeRTOS tick and a few tasks) plus a 1 KB buffer for USB or audio I²S streaming. STMicroelectronics lists the STM32F048T6Y6TR as Active. If you need a second-source option, the same base product number (STM32F048) in a different package (LQFP, UFQFPN) is pin-compatible at the die level — the WLCSP variant is the smallest footprint, so swapping to a QFN means a PCB layout change.","metaTitle":"STM32F048T6Y6TR STM32F0 ARM Cortex-M0 MCU, 48 MHz","metaDescription":"STM32F048T6Y6TR 32-bit ARM Cortex-M0 MCU from STMicroelectronics. 48 MHz core, 32 KB Flash, 6K x 8 RAM, 1.65V-1.95V supply, 36-WLCSP. 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":"48MHz","Series":"STM32F0","Package":"Tape & Reel (TR)","RAM Size":"6K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"DMA, I²S, POR, PWM, WDT","Connectivity":"HDMI-CEC, I²C, IrDA, LINbus, SPI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"30","Core Processor":"ARM® Cortex®-M0","Package / Case":"36-UFBGA, WLCSP","Product Status":"Active","Data Converters":"A/D 13x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32F048","Program Memory Size":"32KB (32K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"36-WLCSP","Voltage - Supply (Vcc/Vdd)":"1.65V ~ 1.95V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.8235","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/eca4bec8760c25bef14cde8416fe3e3f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F048T6Y6TR/alternatives.json"},"ai":{"faq":[{"question":"Is STM32F048T6Y6TR active or obsolete?","answer":"Active. STMicroelectronics lists the product status as Active with no end-of-life notification. No last-time-buy risk for current production."},{"question":"What supply voltage does STM32F048T6Y6TR need?","answer":"1.65V to 1.95V. This is the low-voltage variant of the STM32F0 family — it runs from a 1.8V rail, not the usual 3.3V. Check your power tree before specifying."},{"question":"What is the closest pin-compatible alternative to STM32F048T6Y6TR?","answer":"Within the STM32F048 base product number, the LQFP and UFQFPN packages are die-compatible but not footprint-compatible — the WLCSP ball map is unique. For a larger Flash or RAM, the STM32F058 series shares the same pinout on the WLCSP package, but verify the ball assignment against your layout."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F048T6Y6TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F048T6Y6TR 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}}