{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F103ZGT6J","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F103ZGT6J","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F103ZGT6J","factsUrl":"https://icboms.com/api/mcp/products/STM32F103ZGT6J","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F103 series, ARM Cortex-M3, 32-bit MCU, STM32F103ZGT6J, 72 MHz, 1 MB Flash, 96 KB SRAM, 112 I/O, CAN/USB/SPI/I2C, 144-LQFP, -40°C to 85°C.","salesMarkdown":"It packs 112 I/O lines, a full set of connectivity peripherals — CANbus, USB, I2C, SPI, UART/USART, IrDA, LINbus — plus a 12-bit ADC (21 channels) and a dual 12-bit DAC. It is a workhorse part for motor drives, industrial PLCs, and embedded gateway designs that need a proven, well-documented MCU with ample Flash for complex firmware. ## 1 MB Flash and 96 KB SRAM — sizing the firmware budget The 1 MB (1M x 8) Flash program memory is the high-density option in the STM32F103 line, giving room for a full RTOS, communication stacks (USB, CANopen), and application logic without external memory. The 96 KB SRAM supports moderate data buffering — enough for a 320x240 frame buffer or a CAN message queue — but designs needing large audio or image buffers should plan for external SRAM or a higher-RAM sibling. The Flash is read-while-write capable, so OTA updates are feasible with careful partitioning. ## 144-LQFP — rework and layout notes The 144-LQFP (20x20 mm) is a 0.5 mm pitch package with 112 usable I/O. The exposed pad is not present on this QFP variant, so thermal dissipation goes through the leads — keep the trace widths adequate for the total package current limit. The CANbus interface (one node) and USB full-speed device round out the connectivity for industrial gateway or data-logger roles. For a BOM line, this means no near-term supply risk and full manufacturer support for new designs. The base product number STM32F103 spans multiple density and package variants, so a future migration to a smaller or larger Flash option stays within the same family and toolchain.","metaTitle":"STM32F103ZGT6J STM32F1 MCU, 72 MHz, 1 MB Flash, 144-LQFP","metaDescription":"STMicroelectronics STM32F103ZGT6J 32-bit ARM Cortex-M3 MCU, 72 MHz core, 1 MB Flash, 96 KB SRAM, 112 I/O, -40 to 85°C, 144-LQFP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"72MHz","Series":"STM32F1","RAM Size":"96K x 8","Core Size":"32-Bit Single-Core","Packaging":"Tray","EEPROM Size":"-","Part Status":"Obsolete","Peripherals":"DMA, Motor Control PWM, PDR, POR, PVD, PWM, Temp Sensor, WDT","Connectivity":"CANbus, I2C, IrDA, LINbus, SPI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"112","Core Processor":"ARM® Cortex®-M3","Package / Case":"144-LQFP","Data Converters":"A/D 21x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32F103","Program Memory Size":"1MB (1M x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"144-LQFP (20x20)","Voltage - Supply (Vcc/Vdd)":"2V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/1e0a2899638e8adeb34943c703bd9a9b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F103ZGT6J/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between STM32F103ZGT6 and STM32F103ZGT6J?","answer":"Both share the same 72 MHz Cortex-M3 core, 1 MB Flash, 96 KB SRAM, and 144-LQFP package. The functional ratings are identical; the choice is a logistics decision based on your assembly line's preferred media."},{"question":"What is the maximum clock speed of STM32F103ZGT6J?","answer":"The maximum core clock speed is 72 MHz. At this frequency the Flash requires one wait state for zero-wait execution; the PLL can be configured from the internal oscillator or an external crystal. The 72 MHz limit is the same across the STM32F103 high-density line."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F103ZGT6J","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F103ZGT6J 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}}