{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F423ZHT3","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F423ZHT3","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F423ZHT3","factsUrl":"https://icboms.com/api/mcp/products/STM32F423ZHT3","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F4 series STM32F423ZHT3, 32-Bit Single-Core ARM Cortex-M4, 100MHz, 1.5MB FLASH, 320K x 8 RAM, 114 I/O, 144-LQFP, -40°C ~ 125°C.","salesMarkdown":"## 100 MHz Cortex-M4 with 1.5 MB Flash — memory headroom for complex firmware The 114 I/O lines in a 144-LQFP package give board designers flexibility to route parallel LCD buses, external memory interfaces, and multiple serial peripherals without signal contention. ## Peripheral set and connectivity — what the bus architecture supports This MCU integrates CANbus, USB OTG, QSPI, SAI, and multiple UART/USART, I²C, and SPI interfaces. The QSPI interface lets you attach external serial Flash or PSRAM for data logging or font storage without tying up the main data bus. The SAI peripheral is a serial audio interface that can connect to external codecs or digital microphones, making this part suitable for voice-command front ends or audio playback systems. The DAC channels can generate analog waveforms or bias voltages for sensor excitation, while the ADC's 16 channels cover multi-axis analog sensing without external muxing. The DMA peripheral offloads ADC result transfers and serial data movement, keeping the Cortex-M4 free for control-loop math. The LCD peripheral supports direct connection to small-format graphical or segment LCD panels, which saves a separate display driver IC in human-machine interface designs. The PWM timers can drive motor phases or LED dimming channels with dead-time insertion for half-bridge control. ## 144-LQFP package — layout and thermal considerations The exposed pad (if present on the bottom) should be stitched to a solid ground plane with thermal vias to keep junction temperature within limits when the MCU is running at 100 MHz with most I/O toggling. The base product number STM32F423 indicates it belongs to the high-feature-density tier of the STM32F4 family, which shares pin compatibility across density options within the 144-pin LQFP footprint. For dual-sourcing resilience, the STM32F423 is an ST-proprietary architecture without an official second-source alternate from another manufacturer.","metaTitle":"STM32F423ZHT3 STM32F4 ARM Cortex-M4 MCU, 100MHz, 1.5MB Flash","metaDescription":"STM32F423ZHT3: 32-bit ARM Cortex-M4 at 100MHz, 1.5MB Flash, 320KB SRAM, 114 I/O, -40 to 125°C. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"100MHz","Series":"STM32F4","Package":"Tray","RAM Size":"320K 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, MMC/SD, QSPI, SAI, SPI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"114","Core Processor":"ARM® Cortex®-M4","Package / Case":"144-LQFP","Product Status":"Active","Data Converters":"A/D 16x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32F423","Program Memory Size":"1.5MB (1.5M x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~125°C(TA)","Supplier Device Package":"144-LQFP (20x20)","Voltage - Supply (Vcc/Vdd)":"1.7V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$15.1944","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a8eec206e25d15b1357ecef3f9cdd4fe.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F423ZHT3/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum clock speed of STM32F423ZHT3?","answer":"The core runs at 100 MHz. At this speed the Flash requires 1 wait state for zero-wait access — the STM32F4's prefetch buffer and instruction cache help maintain throughput on sequential code."},{"question":"Does STM32F423ZHT3 have a built-in DAC?","answer":"Yes, it integrates a 2-channel 12-bit DAC. Each channel can output analog voltages for sensor bias, audio signal generation, or control-loop setpoints without an external converter."},{"question":"How does STM32F423ZHT3 compare to STM32F429?","answer":"The STM32F429 runs at 180 MHz and includes a TFT LCD controller with 2D acceleration and up to 2 MB Flash. The STM32F423ZHT3 runs at 100 MHz with 1.5 MB Flash and lacks the hardware TFT controller, but it shares the same Cortex-M4 core, 144-LQFP footprint, and peripheral set for CAN, USB, and serial audio. The F423 is the cost-optimized choice when 100 MHz throughput and 1.5 MB code space suffice and no parallel TFT drive is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F423ZHT3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F423ZHT3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:51:14.863Z","lastPublished":"2026-07-22T18:51:14.863Z","indexable":true}}