{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32G474CBT6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32G474CBT6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32G474CBT6","factsUrl":"https://icboms.com/api/mcp/products/STM32G474CBT6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32G474CBT6, ARM Cortex-M4F 32-bit MCU, 170 MHz, 128 KB Flash, 128K x 8 SRAM, 20x12b ADC, 7x12b DAC, -40°C to 85°C, 48-LQFP.","salesMarkdown":"The core runs at 170 MHz with a single-precision FPU, and the part carries 128 KB of Flash and 128K x 8 SRAM — enough headroom for sensor fusion and field-oriented control loops without external memory. What sets this MCU apart is the analog peripheral density: 20 channels of 12-bit ADC and 7 channels of 12-bit DAC, paired with a high-resolution timer (HRTIM) that can generate complex PWM patterns down to 217 ps resolution. ## 128 KB Flash and 128K x 8 SRAM — sizing the firmware and data buffers The 128 KB Flash program memory is matched to the 128K x 8 SRAM, giving balanced storage for code and runtime data. For a typical motor-control application with a FOC algorithm, the firmware footprint fits comfortably with room for a bootloader and communication stacks. The SRAM handles the ADC result buffers, lookup tables, and state variables without overflow. If the application requires larger data arrays or over-the-air update staging, the G474 family offers higher-density siblings (256 KB and 512 KB Flash) in the same 48-LQFP footprint — a straightforward BOM migration path. ## 20x12b ADC and 7x12b DAC — analog channel count for multi-sensor designs The 20-channel 12-bit ADC and 7-channel 12-bit DAC are the standout features for power-conversion and signal-conditioning applications. The ADC can sample multiple current-sense resistors and voltage dividers simultaneously, while the DACs provide reference levels or analog setpoints without external components. The 12-bit resolution is typical for industrial control loops; the channel count reduces the need for external multiplexers or multiple ADCs, saving board area and BOM cost. ## Connectivity and peripherals for system integration The MCU includes CANbus, I²C, IrDA, LINbus, QSPI, SPI, and UART/USART interfaces — enough for industrial fieldbus bridging, sensor networks, and human-machine interface links. The brown-out detect and reset, DMA, I²S, POR, PWM, and watchdog peripherals reduce external supervisory ICs and glue logic. The 38 general-purpose I/Os in the 48-LQFP package give enough pins for a typical mixed-signal control board with a few external sensors and a display. For dual-sourcing or second-source planning, the STM32G474 family shares pin-compatible options across Flash density variants, allowing a BOM-level swap without a PCB respin.","metaTitle":"STM32G474CBT6 ARM Cortex-M4F MCU, 170 MHz, 128 KB Flash","metaDescription":"STMicroelectronics STM32G474CBT6 32-bit MCU with 170 MHz Cortex-M4F core, 128 KB Flash, 128K x 8 SRAM, 20x12b ADC, 7x12b DAC, industrial temp -40°C to 85°C","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, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"38","Core Processor":"ARM® Cortex®-M4F","Package / Case":"48-LQFP","Product Status":"Active","Data Converters":"A/D 20x12b; D/A 7x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32G474","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"48-LQFP (7x7)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.0466","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/320421a839b0221632b77f7510de8363.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between STM32G474CBT6 and STM32G474CET6?","answer":"The STM32G474CET6 is the higher-density sibling in the same 48-LQFP package, with 256 KB Flash and 128K x 8 SRAM versus the CBT6's 128 KB Flash. The pinout and peripheral set are identical, so the CET6 is a drop-in replacement when more code space is needed."},{"question":"Is STM32G474CBT6 RoHS compliant?","answer":"The STM32G474CBT6 is listed as RoHS compliant per the manufacturer's standard product marking. No specific exemption or non-compliance has been noted in the commercial records."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32G474CBT6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32G474CBT6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T12:40:19.255Z","lastPublished":"2026-07-16T12:40:19.255Z","indexable":true}}