STMicroelectronics STM32F302VBT6TR

Overview

STM32F302VBT6TR 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), dual 12-bit ADCs (17-channel, 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 USART/UARTs, three SPIs (two with I2S), two I²C interfaces, RTC with alarm, and capacitive touch sensing - deployed in motor control, digital power supplies, and industrial sensor nodes.

For engineers reviewing the STM32F302VBT6TR datasheet, STM32F302VBT6TR pinout, STM32F302VBT6TR application, or STM32F302VBT6TR equivalent, key selection criteria include analog peripheral integration (PGA, COMP, DAC), real-time mixed-signal capability, 5 V-tolerant GPIOs, low-power mode timing (Stop/Standby wakeup), and LQFP64 package compatibility with existing STM32F3 layout footprints.

Technical Context

This MCU implements a tightly coupled Cortex-M4 core with single-cycle multiply, hardware divide, DSP extensions, and MPU for memory protection. Its analog subsystem includes two independent ADCs with selectable resolution (6–12 bits), differential input support, and dedicated analog supply (2.0–3.6 V), plus a 12-bit DAC with 2.4–3.6 V analog rail.

The timer architecture comprises one 32-bit general-purpose timer, two 16-bit timers with quadrature encoder input, one 16-bit advanced-control timer (6-channel PWM + deadtime + emergency stop), and two watchdogs (independent + window). Clock management supports HSE (4–32 MHz), LSE (32.768 kHz), HSI (8 MHz), LSI (40 kHz), and PLL with configurable multiplication.

Key Specifications

Pinout & Package

LQFP64 package with exposed thermal pad (ECOPAD™), 0.5 mm pitch, 10 × 10 mm body, RoHS-compliant, rated for 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 STM32F302VBT6TR, STM32F303VCT6 offers more memory and built-in DFU but sacrifices analog supply separation, while STM32G431KBU6 delivers superior analog performance and CPU speed but omits CAN - making the VBT6TR optimal for cost-sensitive, CAN-enabled industrial edge nodes needing balanced analog/digital integration.

Availability

STM32F302VBT6TR is available at Aetrix Electronics and suitable for motor control systems, digital power converters, and industrial sensor nodes requiring stable component supply, long-term lifecycle assurance, and full traceability.

Supply support for STM32F302VBT6TR 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, sensors, and automotive-grade components.

The STM32F3 series targets cost-sensitive, analog-intensive applications such as motor control, digital power, and human-machine interfaces - emphasizing integrated precision analog peripherals and real-time deterministic execution.

FAQ

What is the maximum operating frequency and does it require external clock circuitry?

The STM32F302VBT6TR operates at up to 72 MHz using its internal 8 MHz HSI oscillator multiplied by the PLL. An external 4–32 MHz crystal on PD0/PD1 is optional but recommended for USB, CAN, and RTC accuracy. The internal 40 kHz LSI suffices for basic watchdog and low-power timing.

Does this MCU support hardware CRC and memory protection features?

Yes - it includes a dedicated CRC calculation unit supporting 7/8/16/32-bit polynomials for firmware signature validation, and a Memory Protection Unit (MPU) enabling region-based access control for privileged/unprivileged code and data - both essential for IEC 61508 SIL2 or ISO 26262 ASIL-B compliance.

How many analog-to-digital converter channels are available and what is their effective resolution?

It integrates two independent 12-bit ADCs with up to 17 input channels each (shared with GPIOs). Resolution is software-selectable at 6, 8, 10, or 12 bits; effective resolution reaches 11.5 ENOB at 12-bit mode under typical conditions (VDDA = 3.3 V, fADC ≤ 14 MHz), per DS9911 Rev 9 Section 6.3.18.

Is the LQFP64 package RoHS-compliant and what is its thermal resistance?

Yes - the LQFP64 package (10 × 10 mm, 0.5 mm pitch) is RoHS-compliant and features an ECOPAD™ thermal pad. Its junction-to-ambient thermal resistance (R_θJA) is 46 °C/W under JEDEC JESD51-7 conditions (2s2p board), enabling reliable operation up to 85°C ambient with standard PCB copper area.