STMicroelectronics STM32F423VHT6

Overview

STM32F423VHT6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, 100 MHz max clock, 1.5 MB flash, 320 KB SRAM, and integrated USB OTG FS, dual DACs, and AES hardware encryption. It operates from 1.7–3.6 V across –40 °C to +105 °C and targets embedded control with audio processing and secure connectivity in industrial HMI and sensor hub applications.

For engineers reviewing the STM32F423VHT6 datasheet, STM32F423VHT6 pinout, STM32F423VHT6 application, or STM32F423VHT6 equivalent, key selection criteria include its 100 MHz real-time performance with ART Accelerator™, dual 12-bit DACs for analog output generation, DFSDM support for PDM microphone arrays, low-power Stop mode (15 µA typ.), and LQFP64 package compatibility with legacy STM32F4 footprint constraints.

Technical Context

This MCU integrates an Adaptive Real-Time Accelerator (ART Accelerator™) enabling zero-wait-state execution from flash at 100 MHz, alongside eBAM for optimized batch ADC acquisition. Its memory subsystem includes 1.5 MB of embedded flash with 512 bytes OTP, 320 KB SRAM, and flexible external memory interface supporting NOR/PSRAM.

The peripheral set features three CAN 2.0B controllers, one SAI interface for audio streaming, six DFSDM channels for sigma-delta sensor interfacing, and a hardware AES-128/256 accelerator - all coordinated via a multi-AHB bus matrix and 16-stream DMA controller for deterministic real-time data flow.

Key Specifications

Pinout & Package

LQFP64 package with exposed thermal pad; RoHS-compliant, ECOPACK®2 certified; 64-pin quad flat pack with 0.5 mm pitch, 10 × 10 mm body size, and standard JEDEC MO-115 footprint.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with STM32F413VHT6, the STM32F423VHT6 adds DFSDM and dual DACs for audio/sensor edge processing without increasing package size; versus STM32F427VIT6, it trades Ethernet and FMC for lower cost, smaller footprint, and better power efficiency in compact battery-operated designs.

Availability

STM32F423VHT6 is available at Aetrix Electronics and suitable for industrial sensor hubs, audio-enabled HMIs, and secure USB peripherals requiring stable component supply, long-term lifecycle assurance, and ECOPACK®2 compliance.

Supply support for STM32F423VHT6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, specializing in microcontrollers, power management, and automotive ICs with strong industrial and consumer market presence.

The STM32F4-series targets high-performance embedded applications demanding real-time responsiveness, rich analog integration, and hardware security - especially where DSP, audio, or sensor fusion is central to system function.

FAQ

What is the maximum operating temperature range for STM32F423VHT6?

The STM32F423VHT6 is qualified for industrial operation from –40 °C to +105 °C ambient temperature. This rating applies to the LQFP64 package variant and is validated per ST's production test flow; junction temperature must remain within limits defined by thermal resistance and power dissipation in the final PCB layout.

Does STM32F423VHT6 support external memory expansion?

Yes - it includes a Flexible Static Memory Controller (FSMC) supporting 8- or 16-bit parallel interfaces to NOR Flash, PSRAM, and SRAM devices. The controller provides programmable timing registers and dedicated address/data bus pins on specific GPIO ports, enabling direct connection without glue logic.

Can the internal 32 kHz RC oscillator be used for RTC calibration?

Yes - the internal 32 kHz RC oscillator is factory-calibrated and can serve as the RTC clock source. It achieves ±10 ppm accuracy over temperature and voltage when enabled with the RCC_CSR register bit, eliminating need for external 32.768 kHz crystal in space-constrained designs.

How many independent PWM channels does STM32F423VHT6 support?

The device supports up to 32 independent PWM outputs: twelve 16-bit general-purpose timers (TIM2–TIM5, TIM9–TIM14) each offering up to 4 channels, plus two 32-bit advanced-control timers (TIM1/TIM8) with complementary outputs and dead-time insertion - all configurable via hardware timer registers without CPU intervention.