{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F405OGY6WTR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F405OGY6WTR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F405OGY6WTR","factsUrl":"https://icboms.com/api/mcp/products/STM32F405OGY6WTR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F4 series, ARM® Cortex®-M4, 32-Bit Single-Core, 168MHz, 1MB (1M x 8) FLASH, 192K x 8 RAM, 90-UFBGA WLCSP, -40°C ~ 85°C.","salesMarkdown":"## STM32F405OGY6WTR — 168 MHz Cortex-M4 in a wafer-level CSP That package choice drives the board design: fine-pitch BGA-class assembly, no exposed pad for thermal relief, and the die is essentially the package — mechanical stress from PCB flex or reflow profile directly couples to the silicon. This is the variant to specify when board area is the binding constraint, not when through-hole or QFP rework convenience matters. On-chip data conversion includes 13 channels of 12-bit ADC and 2 channels of 12-bit DAC, which can eliminate a separate analog front-end IC in sensor-conditioning or closed-loop control applications. This is not a full EOL — the manufacturer has not issued a last-time-buy cutoff — but it signals that the part is in a managed phase-out and will not be allocated for new project starts. For an existing BOM that already qualifies this WLCSP variant, NRND means the supply window is finite: remaining factory stock and independent-distributor inventory are the channels, and date-code freshness matters because the die-attach and underfill materials in a WLCSP have a shelf-life consideration beyond standard MSL handling. The broader STM32F405 family includes pin-compatible LQFP and BGA variants, but the WLCSP-specific ball map and mechanical footprint are unique to this OG package code. A BOM that relies on the 4.22 x 3.97 mm CSP footprint will need a board respin to migrate to any alternative package. ## 168 MHz and 1 MB Flash — what the ratings mean at the bench The 168 MHz core clock is the maximum rated speed; reaching it requires setting the flash wait states to at least 3 cycles (per the STM32F4 reference manual) or the CPU hard-faults on the first instruction fetch outside the ART Accelerator cache. At this clock rate, the Cortex-M4 FPU and DSP extension execute single-cycle MAC operations, making the part viable for real-time FFT, motor-field-oriented control, or audio processing without a separate DSP. The 1 MB Flash is organized as 1M x 8 bits. Erase granularity is 128 KB sectors for the main block and 16 KB for the system memory — important when sizing an OTA update partition or a wear-leveled configuration store. The 192 KB SRAM is split across 128 KB of main SRAM and 64 KB of tightly-coupled CCM (core-coupled memory) accessible only by the CPU, not the DMA. CCM is the spot for time-critical interrupt vectors and stack data that cannot tolerate bus contention. At 168 MHz the active current draw is in the tens-of-milliamps range; the internal POR and BOR circuits handle brown-out sequencing without an external supervisor IC for most single-supply designs. This is the standard STM32F4 temperature tier; the 125°C extended variant is a different order code. If your system sees sustained junction temperatures above 85°C, the WLCSP package's thermal resistance (no exposed pad) means you need to budget airflow or a heatsink interface to the PCB copper plane.","metaTitle":"STM32F405OGY6WTR STM32F4 ARM Cortex-M4 MCU, 168MHz","metaDescription":"STM32F405OGY6WTR is a 32-bit ARM Cortex-M4 MCU from STMicroelectronics, 168MHz core, 1MB Flash, 192KB SRAM, 90-WLCSP package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"168MHz","Series":"STM32F4","Package":"Tape & Reel (TR)","RAM Size":"192K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, I²S, LCD, POR, PWM, WDT","Connectivity":"CANbus, EBI/EMI, I²C, IrDA, LINbus, SPI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"72","Core Processor":"ARM® Cortex®-M4","Package / Case":"90-UFBGA, WLCSP","Product Status":"Not For New Designs","Data Converters":"A/D 13x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32F405","Program Memory Size":"1MB (1M x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"90-WLCSP (4.22x3.97)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.6704","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ba3a059be9cfe6bdf7cf0dbd3dcfbee9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F405OGY6WTR/alternatives.json"},"ai":{"faq":[{"question":"What is the product status of STM32F405OGY6WTR – is it NRND?","answer":"It is not fully discontinued, but it is in a managed phase-out and should not be selected for new projects. Existing BOMs can still be filled through remaining stock and independent distribution."},{"question":"What is the replacement or equivalent for STM32F405OGY6WTR?","answer":"The STM32F405 family includes other package variants (LQFP, BGA), but the WLCSP-specific ball map and 4.22 x 3.97 mm footprint are unique to this order code. A board respin is required to use an alternative package."},{"question":"What is STM32F405OGY6WTR's listed speed?","answer":"The core is rated at 168 MHz maximum, based on the ARM Cortex-M4 with single-cycle MAC and FPU."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F405OGY6WTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F405OGY6WTR 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}}