{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32G473QBT6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32G473QBT6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32G473QBT6","factsUrl":"https://icboms.com/api/mcp/products/STM32G473QBT6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32G4 series, STM32G473QBT6, ARM Cortex-M4 32-bit MCU, 170MHz, 128KB Flash, 128K x 8 RAM, 107 I/O, 42x12b ADC, 7x12b DAC, 128-LQFP, -40°C to 85°C, 1.71V to 3.6V.","salesMarkdown":"## 170 MHz Cortex-M4 with mixed-signal density for industrial control The part integrates a 42-channel 12-bit ADC and a 7-channel 12-bit DAC, making it suited for mixed-signal control loops in motor drives, digital power conversion, and industrial sensor fusion. ## Peripheral set and connectivity — what the 107 I/O and 42 ADC channels buy you The 107 I/O count in the 128-LQFP footprint supports parallel interfaces for displays or multiple serial buses without external GPIO expanders. Connectivity includes CANbus, I²C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART, and USB, covering industrial fieldbus and sensor networks. The 42 analog input channels let you monitor multiple current-sense resistors, thermistors, or encoder signals on a single chip — useful in multi-axis motor control where each phase needs its own ADC sample. The 7 DAC channels can generate analog setpoints or reference voltages for external analog circuits. ## Supply range and power management The 1.71 V floor is the practical minimum for battery-powered designs near end-of-discharge — a 2-cell alkaline stack or single Li-ion cell through a regulator stays within spec. On-chip brown-out detect and POR eliminate external supervisor ICs in many designs. The internal oscillator is available, though an external crystal is typical when USB or CAN timing accuracy is required. ## Lifecycle status — active, no LTB risk The base product number is STM32G473, and the STM32G4 series is an active STM32 family with roadmap continuity.","metaTitle":"STM32G473QBT6 STM32G4 ARM Cortex-M4 MCU, 170MHz, 128KB Flash","metaDescription":"STMicroelectronics STM32G473QBT6 32-bit ARM Cortex-M4 MCU at 170MHz with 128KB Flash, 128K x 8 RAM, 107 I/O, 42x12b ADC, 7x12b DAC in 128-LQFP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"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":"107","Core Processor":"ARM® Cortex®-M4","Package / Case":"128-LQFP","Product Status":"Active","Data Converters":"A/D 42x12b; D/A 7x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32G473","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"128-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.5545","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3622b0c8d7ddc16064f775c2c4cc5029.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum operating frequency of STM32G473QBT6?","answer":"The core runs at 170 MHz. At this speed the flash wait states need to be configured correctly in the clock setup — the STM32G4 HAL and CubeMX handle this automatically when you select the 170 MHz PLL setting."},{"question":"Is STM32G473QBT6 compatible with my existing STM32G4 design?","answer":"The STM32G473QBT6 is pin-compatible with other STM32G4 devices in the 128-LQFP package, provided the peripheral mix and memory size match your firmware. The 128 KB Flash and 128K x 8 RAM are the entry-level density in the G4 series — if your existing design uses a higher-density G4 variant, check that the firmware fits within this memory footprint before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32G473QBT6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32G473QBT6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T12:32:14.762Z","lastPublished":"2026-07-16T12:32:14.762Z","indexable":true}}