STMicroelectronics STM32F303VEH6

Overview

STM32F303VEH6 from STMicroelectronics is a 32-bit ARM® Cortex®-M4 microcontroller with FPU, operating at up to 72 MHz, featuring 512 KB Flash, 80 KB SRAM (64 KB + 16 KB CCM), and integrated analog peripherals including four operational amplifiers, seven comparators, two 12-bit DACs, and four ADCs with 12/10/8/6-bit resolution. It supports CAN 2.0B, USB 2.0 FS, and FSMC for external memory expansion in industrial motor control and digital power conversion systems.

For engineers reviewing the STM32F303VEH6 datasheet, STM32F303VEH6 pinout, STM32F303VEH6 application, or STM32F303VEH6 equivalent, key selection criteria include its dual DAC channels with 2.4–3.6 V analog supply, rail-to-rail comparators, PGA-capable op-amps, and 115 fast I/Os with 5 V tolerance - critical for mixed-signal real-time control designs.

Technical Context

The STM32F303VEH6 implements an ARM Cortex-M4 core with hardware FPU, single-cycle MAC, and DSP instructions, enabling deterministic execution of motor control algorithms and digital signal processing tasks. Its memory subsystem includes 512 KB Flash with ECC support on first 32 KB of 64 KB SRAM and a dedicated 16 KB CCM SRAM block accessible via instruction/data bus with parity checking.

Analog integration centers on concurrent high-speed acquisition and conditioning: four independent ADCs (up to 40 channels, 0.20 µs conversion) share separate VDDA (2.0–3.6 V), while two DACs (2.4–3.6 V supply), seven comparators, and four op-amps (all terminals accessible, PGA mode supported) enable closed-loop analog front-end design without external signal chain components.

Key Specifications

Pinout & Package

LQFP100 package with exposed thermal pad, 0.5 mm pitch, 14 × 14 mm body size, and JEDEC-standard footprint for automated assembly and thermal reliability in industrial environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F303VEH6, the STM32F407VGT6 trades analog integration for raw CPU performance and memory, while the STM32G474RET6 retains full analog capability with modern enhancements - making the F303VEH6 optimal for cost-sensitive, analog-rich legacy-compatible designs.

Availability

STM32F303VEH6 is available at Aetrix Electronics and suitable for industrial motor control, digital power conversion, medical infusion devices, and test equipment requiring stable component supply across extended product lifecycles.

Supply support for STM32F303VEH6 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, sensors, and automotive ICs.

The STM32F3 series targets cost-effective, analog-intensive embedded applications - designed specifically for digital power supplies, motor control, and capacitive touch interfaces where mixed-signal integration reduces BOM count and board area.

FAQ

What is the maximum operating frequency and associated power consumption of the STM32F303VEH6?

The STM32F303VEH6 operates at up to 72 MHz with typical active current draw of 120 mA at 3.6 V (code running from Flash). At 2.0 V minimum supply, it sustains 48 MHz operation with reduced current; full-speed operation requires ≥2.7 V per electrical characteristics table 19. Dynamic voltage scaling is not supported - frequency is tied to VDD range.

Does the STM32F303VEH6 support hardware encryption or secure boot features?

No, the STM32F303VEH6 does not include hardware cryptographic accelerators, TRNG, or secure boot ROM. It relies on software-based AES libraries and external secure elements for confidentiality. For secure boot, designers must implement custom signature verification in Flash-resident bootloader using external keys stored in backup registers or EEPROM.

How many independent ADC instances are available, and can they operate simultaneously?

The device integrates four independent ADCs (ADC1–ADC4), each with up to 16 channels and selectable resolution (6/8/10/12 bits). All four can sample concurrently using hardware synchronization via TIMx_TRGO events, enabling simultaneous acquisition of voltage, current, temperature, and auxiliary signals in motor control applications.

Is the LQFP100 package RoHS-compliant and lead-free?

Yes, the STM32F303VEH6 in LQFP100 package (part number suffix H6) is RoHS-compliant and lead-free per EU Directive 2011/65/EU and STMicroelectronics' environmental policy. The "H6" designation explicitly indicates halogen-free, lead-free, and RoHS-conforming packaging with matte tin finish on leads.