STMicroelectronics STM32F302VDH6

Overview

STM32F302VDH6 from STMicroelectronics is a 32-bit ARM® Cortex®-M4 microcontroller with FPU, 72 MHz max clock, 384 KB Flash, 64 KB SRAM, and integrated analog peripherals including two 12-bit ADCs (18-channel, 0.20 µs conversion), one 12-bit DAC, four rail-to-rail comparators, and two operational amplifiers configurable as programmable gain amplifiers - deployed in motor control and industrial sensor interface systems.

For engineers reviewing the STM32F302VDH6 datasheet, STM32F302VDH6 pinout, STM32F302VDH6 application, or STM32F302VDH6 equivalent, key selection criteria include its dual ADC timing synchronization, VDDA/VREFOPAMP supply separation (2.4–3.6 V), flexible FSMC interface for external memory expansion, and CAN 2.0B support with hardware filtering.

Technical Context

The device implements a tightly coupled Cortex-M4 core with single-cycle MAC, HW division, and DSP extensions, paired with a memory protection unit (MPU) for real-time OS partitioning. Its analog subsystem features independent voltage domains: VDDA (2.0–3.6 V) for ADC/COMP and dedicated VREFOPAMP (2.4–3.6 V) for op-amp biasing.

Clock architecture includes four oscillators (HSE 4–32 MHz, LSE 32.768 kHz, HSI 8 MHz, LSI 40 kHz), a PLL supporting up to 72 MHz, and precise RTC calibration. Peripheral interconnect matrix enables concurrent DMA transfers across ADC, DAC, timers, and communication interfaces without CPU intervention.

Key Specifications

Pinout & Package

LQFP64 package (10 × 10 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad; 64-pin quad flat pack suitable for automated SMT assembly and moderate I/O density designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F302VDH6, the F303VCT6 trades FSMC for USB OTG and larger memory - ideal for connected devices; the F072VBT6 sacrifices all advanced analog blocks and CAN for cost reduction - viable only in basic control roles without signal conditioning demands.

Availability

STM32F302VDH6 is available at Aetrix Electronics and suitable for motor control systems, industrial sensor nodes, human-machine interfaces, and power supply monitors requiring stable component supply across extended production lifecycles.

Supply support for STM32F302VDH6 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-grade ICs with strong industrial and consumer market presence.

The STM32F3 series targets cost-sensitive, analog-intensive embedded applications - delivering high-precision mixed-signal performance with real-time control capabilities in compact packages.

FAQ

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

The STM32F302VDH6 achieves a maximum 72 MHz system clock using its internal PLL, which multiplies the 8 MHz HSI oscillator or an external crystal (4–32 MHz). The PLL supports fractional configuration and must be enabled with proper flash wait-state settings. All peripherals operate at this frequency unless prescaled, and the FPU executes floating-point operations at full speed without stalling.

Does this MCU support hardware CRC calculation and why does it matter?

Yes, it includes a dedicated CRC calculation unit compliant with IEEE-802.3 (32-bit polynomial). This offloads CRC computation from the CPU during firmware updates, OTA image validation, or communication frame checking - ensuring deterministic timing and reducing software overhead in safety-critical applications like motor control or industrial networking.

How many analog supply domains does it have and what do they power?

It has two distinct analog supply domains: VDDA (2.0–3.6 V) powers both ADCs, comparators, and the internal temperature sensor; VREFOPAMP (2.4–3.6 V) supplies the op-amps' bias circuitry. These domains must be decoupled independently to prevent digital noise coupling into analog measurements - especially critical for 12-bit accuracy and sub-microsecond ADC timing.

Can the op-amps be used without external resistors in PGA mode?

Yes - both op-amps support programmable gain amplifier (PGA) mode with internal resistor networks offering gains of 2, 4, 8, 16, and 32. All op-amp terminals (inverting/non-inverting inputs, output, VREF) are brought out to GPIO pins, enabling direct feedback path configuration or external gain adjustment while retaining internal PGA flexibility.