{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32G473CEU6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32G473CEU6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32G473CEU6","factsUrl":"https://icboms.com/api/mcp/products/STM32G473CEU6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32G4 series, STM32G473CEU6, ARM Cortex-M4 32-bit MCU, 170MHz, 512KB Flash, 128K x 8 RAM, 42 I/O, CANbus/I²C/SPI/UART/USB, 48-UFQFN Exposed Pad, -40°C to 85°C.","salesMarkdown":"## What this STM32G473CEU6 brings to a mixed-signal control loop If you are migrating from an STM32L1 or similar Cortex-M3 part at 32 MHz, the G4 gives roughly 5× the arithmetic throughput per cycle, plus the DSP extensions and single-precision FPU that the M3 lacks. That matters when you are unrolling a Park-Clarke transform or a CORDIC in software rather than offloading to an external FPGA. 512 KB of Flash is the mid-density option in the G473 line. It holds a full motor-control stack (STM32 Motor Control SDK, HAL, application code) with room for a bootloader and one or two OTA image slots if you compress. The 128 KB SRAM is split across multiple banks on the G4 architecture, which lets you allocate one bank for DMA ping-pong ADC buffers and another for the real-time control variables without contention. If your application needs more than 128 KB of working memory, step up to the G474 or G491 variants — but for a typical three-shunt motor drive or a 2 kW digital PSU, this is the right tier. ## Analog front-end: 21 ADC channels and 4 DAC outputs on a 48-pin package With 21 analog inputs on a 48-pin package, nearly every available pin can serve as an ADC channel. That is unusual for this pin count — most competitors in a 48-QFN offer 10 to 16 analog inputs. The four 12-bit DACs can simultaneously generate reference voltages, offset trim, or analog setpoints for downstream comparators or external amplifiers. For a three-phase inverter, you can dedicate three DACs to current-reference generation and use the fourth for a DC-link voltage setpoint, all without external components. ## 48-UFQFN with exposed pad — thermal and layout notes Without those vias, the junction temperature rises quickly above 400 mA continuous I/O or when running the core and ADC at full speed. The pad is electrically connected to VSS, so it doubles as a low-inductance ground return for the analog and digital supplies. Keep the decoupling capacitors within 3 mm of the supply pins — the UFQFN has no room for a fan-out, so place 100 nF and 4.7 µF on the same layer as the pad.","metaTitle":"STM32G473CEU6 STM32G4 MCU, 170MHz Cortex-M4, 512KB Flash","metaDescription":"STMicroelectronics STM32G473CEU6 ARM Cortex-M4 MCU at 170 MHz with 512 KB Flash, 128 KB RAM, 21-ch 12-bit ADC, 4-ch 12-bit DAC.","metaKeywords":null},"attributes":{"series":"STM32G4","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"170MHz","Series":"STM32G4","Package":"Tray","RAM Size":"128K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"42","Core Processor":"ARM® Cortex®-M4","Package / Case":"48-UFQFN Exposed Pad","Product Status":"Active","Data Converters":"A/D 21x12b; D/A 4x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32G473","Program Memory Size":"512KB (512K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"48-UFQFPN (7x7)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$9.2300","priceTiers":[{"qty":1,"price":"$9.23000","currency":"USD"},{"qty":10,"price":"$8.33700","currency":"USD"},{"qty":25,"price":"$7.94960","currency":"USD"},{"qty":80,"price":"$6.90263","currency":"USD"},{"qty":230,"price":"$6.59243","currency":"USD"},{"qty":440,"price":"$6.01073","currency":"USD"},{"qty":1560,"price":"$5.23516","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3622b0c8d7ddc16064f775c2c4cc5029.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32G473CEU6/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between STM32G473CEU6 and STM32G473CET6?","answer":"The difference is the package: the CEU6 is in a 48-UFQFN exposed-pad (7x7 mm) package, while the CET6 is in a 48-LQFP (7x7 mm) package with gull-wing leads. The UFQFN offers a smaller footprint and better thermal performance through the exposed pad, but requires reflow soldering and is harder to hand-solder or rework. All core specs — 170 MHz Cortex-M4, 512 KB Flash, 128 KB RAM, analog peripherals — are identical between the two."},{"question":"What is STM32G473CEU6's listed speed?","answer":"The STM32G473CEU6 is rated for a 170 MHz core clock on the ARM Cortex-M4 with FPU."},{"question":"When sourcing STM32G473CEU6, what is the closest functional alternative?","answer":"It is not a pin-compatible second source — the peripheral sets differ significantly. For a true functional alternative within the STM32G4 family, consider the STM32G474CEU6 which adds a CORDIC and FMAC accelerator, or the STM32G491CEU6 with a higher core clock."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32G473CEU6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32G473CEU6 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}}