STMicroelectronics STM32F412VET6TR

Overview

STM32F412VET6TR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, 1 MB Flash, 256 KB SRAM, USB OTG FS, dual CAN 2.0B, and 17 communication interfaces. It operates up to 100 MHz, delivers 125 DMIPS, and supports BAM (Batch Acquisition Mode) for sensor hub and low-power edge processing in industrial and wearable applications.

For engineers reviewing the STM32F412VET6TR datasheet, STM32F412VET6TR pinout, STM32F412VET6TR application, or STM32F412VET6TR equivalent, key selection criteria include its 100-pin LQFP package, 12-bit 2.4 MSPS ADC with 16 channels, dual CAN support, ART Accelerator™ enabling zero-wait-state flash execution, and VBAT-powered RTC with subsecond accuracy.

Technical Context

The device integrates an Adaptive Real-time Accelerator (ART Accelerator™) that eliminates flash wait states at 100 MHz, enabling deterministic real-time performance. Its memory subsystem includes flexible static memory controller (FSMC) supporting NOR/PSRAM/SRAM and dual-mode Quad-SPI for external code/data expansion.

Power architecture features three low-power modes-Stop (50 µA typical), Standby (2.4 µA), and VBAT RTC mode (1 µA)-with hardware-calibrated 32 kHz LSE/LRC oscillators and programmable voltage scaling. Peripheral integration includes two DFSDM modules for sigma-delta microphone input, four PDM interfaces, and stereo audio support via I2S.

Key Specifications

Pinout & Package

LQFP100 package with 100 leads, 0.5 mm pitch, exposed thermal pad, RoHS-compliant and ECOPACK2 certified. Designed for high-density PCB layouts with full I/O flexibility and thermal reliability in industrial ambient conditions.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F413VGT6, this part trades crypto acceleration and extra Flash for FSMC and BAM-making it superior for display-driven or sensor-aggregation systems. Against STM32F407VGT6, it adds 64 KB SRAM, DFSDM, and 25 µA lower Stop current, justifying upgrade in battery-sensitive or audio-capable designs.

Availability

STM32F412VET6TR is available at Aetrix Electronics and suitable for industrial PLCs, wearable sensor hubs, medical point-of-care devices, and smart HVAC controllers requiring stable component supply across multi-year production cycles.

Supply support for STM32F412VET6TR 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, Switzerland, designing and manufacturing microcontrollers, power management ICs, MEMS, and automotive-grade components.

The STM32F412xE series targets resource-constrained, power-aware edge nodes-emphasizing low-power sensor aggregation, real-time audio processing, and industrial connectivity with dual CAN and USB OTG.

FAQ

What is the maximum operating frequency and how is it achieved?

The STM32F412VET6TR achieves 100 MHz maximum CPU frequency using its internal PLL with HSE (4–26 MHz) or HSI (16 MHz) as source. The ART Accelerator™ eliminates flash wait states, allowing deterministic zero-latency instruction fetch. Voltage scaling must be set to Range 3 (1.2 V) for full-speed operation, and VDD must remain ≥3.0 V under load to sustain 100 MHz reliably.

Does this MCU support external SDRAM or DDR memory?

No. The STM32F412VET6TR's Flexible Static Memory Controller (FSMC) supports only NOR flash, PSRAM, and SRAM with 8- or 16-bit data buses. It does not support SDRAM or DDR protocols due to lack of dynamic refresh control, address multiplexing, or burst-length configuration registers required for DRAM interfaces.

How many I/O pins support 5 V tolerance, and which ones are they?

All 114 GPIO pins on the STM32F412VET6TR are 5 V-tolerant when configured in input, output, or alternate function mode-provided VDD is powered and within specification. This includes all pins in Port A through Port H, excluding dedicated power/ground/reset pins. Tolerance is verified per IEC 61000-4-2 Level 4 ESD testing and applies regardless of VDD voltage (1.7–3.6 V).

Can the USB OTG FS interface operate in host mode without external components?

Yes. The integrated USB OTG FS PHY supports both device and host modes without external transceivers. In host mode, it drives standard USB 2.0 full-speed (12 Mbps) signaling directly. External components required are only a 1.5 kΩ pull-up resistor on DP for device mode detection and optional ESD protection diodes-no level shifters or voltage regulators are needed.