STMicroelectronics STM32F303VDH6

Overview

STM32F303VDH6 from STMicroelectronics is a 32-bit ARM® Cortex®-M4 microcontroller with FPU, 72 MHz max CPU frequency, 384 KB Flash, 64 KB SRAM (with HW parity on first 32 KB), and integrated analog peripherals including four operational amplifiers, seven rail-to-rail comparators, two 12-bit DACs, and four ADCs supporting up to 40 channels at 0.20 µs conversion time. It operates from 2.0–3.6 V and targets motor control, digital power conversion, and industrial sensing systems requiring mixed-signal real-time processing.

For engineers reviewing the STM32F303VDH6 datasheet, STM32F303VDH6 pinout, STM32F303VDH6 application, or STM32F303VDH6 equivalent, key selection criteria include its 64-pin LQFP package, dual 12-bit DACs with 2.4–3.6 V analog supply, four configurable op-amps usable in PGA mode, 115 fast I/Os (several 5 V-tolerant), and CAN 2.0B interface for industrial bus communication.

Technical Context

The STM32F303VDH6 implements an ARM Cortex-M4 core with hardware FPU, single-cycle MAC, and DSP instruction set - enabling deterministic execution of motor control algorithms and digital signal filtering. Its memory subsystem includes 384 KB Flash (with ECC support), 64 KB SRAM (32 KB with parity), and 16 KB CCM-SRAM for critical code/data with parity protection.

Analog integration centers on a tightly coupled mixed-signal subsystem: four op-amps (all terminals accessible, 2.4–3.6 V supply), seven ultra-fast comparators (rail-to-rail, 2.0–3.6 V), two synchronized 12-bit DACs (1 µs settling), and four ADCs with selectable resolution (6/8/10/12 bits) and independent analog supply domain (2.0–3.6 V).

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, industrial temperature range (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F303VCT6, the STM32F303VDH6 offers higher Flash/SRAM in a smaller LQFP64 package - ideal for space-constrained motor drives. Versus STM32G474RET6, it trades raw speed and newer analog features for proven FSMC support and broader ecosystem compatibility in established industrial platforms.

Availability

STM32F303VDH6 is available at Aetrix Electronics and suitable for motor control systems, digital power supplies, industrial sensor hubs, and human-machine interfaces requiring stable component supply across long-lifecycle industrial programs.

Supply support for STM32F303VDH6 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, specializing in microcontrollers, power management, analog, MEMS, and automotive ICs.

The STM32F3 series targets cost-sensitive, high-precision industrial and consumer applications requiring rich analog integration and real-time control - designed specifically for motor control, digital power, and capacitive touch systems.

FAQ

What is the maximum operating frequency and core type of the STM32F303VDH6?

The STM32F303VDH6 features an ARM Cortex-M4 core with integrated FPU, running at up to 72 MHz. It delivers 90 DMIPS performance and supports DSP instructions and a memory protection unit (MPU). This configuration is optimized for deterministic real-time control tasks such as motor commutation and digital power loop execution.

Does the STM32F303VDH6 support hardware-accelerated capacitive touch sensing?

Yes - it integrates a dedicated Touch Sensing Controller (TSC) supporting up to 24 capacitive sensing channels. The TSC provides hardware-accelerated acquisition, automatic calibration, and noise immunity features, enabling robust implementation of touchkeys, linear sliders, and rotary wheels without external components or CPU intervention.

What analog peripherals are integrated and what supply ranges do they require?

The device integrates four operational amplifiers (2.4–3.6 V analog supply), seven rail-to-rail comparators (2.0–3.6 V), two 12-bit DACs (2.4–3.6 V), and four ADCs (2.0–3.6 V analog supply, 0–3.6 V input range). All analog blocks share dedicated VDDA/VSSA pins to minimize digital noise coupling.

Is the STM32F303VDH6 pin-compatible with other STM32F303 variants?

No - the STM32F303VDH6 uses a 64-pin LQFP package, while other variants like STM32F303VCT6 (LQFP100) and STM32F303ZET6 (LQFP144) have different pin counts and layouts. Pin compatibility exists only within the same package option (e.g., STM32F303VDH6 and STM32F303CDH6 share LQFP64 footprint but differ in Flash size).