STMicroelectronics STM32F302VBT6

Overview

STM32F302VBT6 from STMicroelectronics is an Arm® Cortex®-M4 32-bit MCU with FPU, operating up to 72 MHz, featuring 128 KB Flash, 40 KB SRAM (16 KB with HW parity), two 12-bit ADCs (0.2 µs conversion), one 12-bit DAC, four rail-to-rail comparators, and two programmable-gain operational amplifiers. It integrates CAN 2.0B, USB 2.0 FS, five USARTs, three SPIs, two I²C interfaces, and capacitive touch sensing - deployed in industrial motor control, digital power supplies, and analog signal conditioning systems.

For engineers reviewing the STM32F302VBT6 datasheet, STM32F302VBT6 pinout, STM32F302VBT6 application, or STM32F302VBT6 equivalent, key selection criteria include its dual ADC architecture with differential input support, integrated PGAs for sensor front-end gain adjustment, CAN+USB coexistence capability, and 5 V-tolerant GPIOs enabling direct interface with legacy logic levels.

Technical Context

The device implements a tightly coupled Cortex-M4 core with single-cycle MAC, hardware divide, and DSP extensions, paired with a memory protection unit (MPU) for real-time OS partitioning. Its analog subsystem includes independent VDDA supply (2.4–3.6 V) for DAC/OPAMP/COMP and separate 2–3.6 V analog domain for ADCs, ensuring noise isolation between digital switching and precision conversion.

Clock management supports four oscillators (HSE 4–32 MHz, LSE 32.768 kHz, HSI 8 MHz, LSI 40 kHz), with PLL enabling precise 72 MHz system clock derivation. The interconnect matrix enables concurrent peripheral DMA access without CPU arbitration bottlenecks, critical for deterministic ADC+DAC+PWM synchronization in closed-loop control.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; 64-pin quad flat lead frame optimized for thermal dissipation in motor gate driver companion applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F302VBT6, STM32F303VCT6 offers double Flash and larger SRAM but omits TSC - making it better for firmware-rich control stacks without touch UI. STM32G431KBT6 delivers faster CPU and superior analog specs but sacrifices CAN, limiting use in industrial networking nodes.

Availability

STM32F302VBT6 is available at Aetrix Electronics and suitable for industrial motor control, digital power supplies, human-machine interface development, and fieldbus node design requiring stable component supply across multi-year production cycles.

Supply support for STM32F302VBT6 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 devices, sensors, and automotive ICs since 1987.

The STM32F3 series targets cost-sensitive, analog-intensive embedded applications - combining high-precision analog peripherals (PGA, COMP, DAC) with real-time control capabilities for industrial and consumer equipment.

FAQ

What is the maximum operating frequency and supported voltage range for STM32F302VBT6?

The STM32F302VBT6 operates at up to 72 MHz using its internal PLL, with VDD and VDDA supply ranges specified from 2.0 V to 3.6 V and 2.4 V to 3.6 V respectively. The device supports dynamic voltage scaling and low-power modes (Sleep, Stop, Standby) with programmable voltage detector (PVD) thresholds for brown-out detection and graceful shutdown.

Does STM32F302VBT6 support hardware-based cryptographic acceleration?

No, the STM32F302VBT6 does not include dedicated cryptographic accelerators such as AES, SHA, or PKA engines. It relies on software libraries for encryption tasks. For hardware crypto support, ST recommends the STM32L4 or STM32H7 series, which integrate AES-128/256, HASH, and PKA modules compliant with NIST standards.

Can the integrated operational amplifiers be used in instrumentation amplifier configurations?

Yes, the two rail-to-rail OPAMPs can be externally configured as instrumentation amplifiers using discrete resistors, though the device does not provide a built-in 3-op-amp IA topology. Each OPAMP has all terminals accessible (non-inverting/inverting inputs, output), and gain is programmable from 1× to 16× in PGA mode - enabling high-accuracy sensor signal conditioning with <0.1% gain error over temperature.

Is STM32F302VBT6 qualified for automotive applications?

No, the STM32F302VBT6 is rated for industrial temperature range (–40 °C to +85 °C) and is not AEC-Q100 qualified. For automotive-grade equivalents, ST offers the STM32F302x8/A variants in QFP64 packages qualified to AEC-Q100 Grade 2 (–40 °C to +105 °C), with identical peripheral sets and pin compatibility.