STMicroelectronics STM32F302RET6TR

Overview

STM32F302RET6TR from STMicroelectronics is a 32-bit ARM® Cortex®-M4 microcontroller with FPU, 72 MHz max clock, 512 KB Flash, 64 KB SRAM, and integrated analog peripherals including two 12-bit ADCs (0.20 µs conversion), one 12-bit DAC, four rail-to-rail comparators, and two operational amplifiers-designed for real-time motor control and industrial sensing systems.

For engineers reviewing the STM32F302RET6TR datasheet, STM32F302RET6TR pinout, STM32F302RET6TR application, or STM32F302RET6TR equivalent, key selection criteria include its dual ADC timing synchronization, programmable voltage detector (PVD), flexible static memory controller (FSMC), and CAN 2.0B interface support in LQFP64 package.

Technical Context

The device implements an ARM Cortex-M4 core with hardware floating-point unit (FPU), single-cycle multiply, and DSP instructions-enabling deterministic execution of motor control algorithms. Its memory protection unit (MPU) supports secure partitioning of code and data spaces across RTOS environments.

Analog subsystem integration includes independent VDDA supply (2.0–3.6 V), dedicated 2.4–3.6 V analog supply for DAC/Op-Amps, and ultra-fast comparators with propagation delay <100 ns-optimized for overcurrent protection and fast-loop feedback in power electronics.

Key Specifications

Pinout & Package

LQFP64 package (10 × 10 mm, 0.5 mm pitch), thermally enhanced 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 microcontroller applications.

Compared with STM32F302RET6TR, STM32F303RET6 offers identical analog integration with added USB DFU convenience, while STM32G431KBT6 trades FSMC and legacy timer flexibility for higher compute density and modern accelerator blocks-making it optimal for next-gen digital power but unsuitable for display or external memory interfaces.

Availability

STM32F302RET6TR is available at Aetrix Electronics and suitable for motor control systems, industrial sensor hubs, energy metering interfaces, and human-machine interfaces requiring stable component supply and long-term production support.

Supply support for STM32F302RET6TR 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 analog ICs for industrial, automotive, and consumer markets.

The STM32F3 series targets cost-sensitive, analog-rich embedded applications-emphasizing integrated op-amps, comparators, and high-resolution ADCs to reduce external component count in motor control and sensing systems.

FAQ

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

The STM32F302RET6TR operates at up to 72 MHz using its internal 8 MHz RC oscillator with PLL multiplication, eliminating need for external crystal in basic configurations. An external 4–32 MHz crystal can be used for higher precision timing, especially for USB or CAN applications requiring strict jitter tolerance.

Does this MCU support hardware CRC and memory protection?

Yes, it includes a dedicated cyclic redundancy check (CRC) calculation unit for fast data integrity verification, and a memory protection unit (MPU) that enforces privilege levels and memory region access rules-critical for IEC 61508 SIL2-certifiable firmware designs.

How many analog-to-digital converters does it have and what are their key timing characteristics?

It integrates two independent 12-bit ADCs capable of 0.20 µs conversion time per sample, with selectable resolution (6/8/10/12 bits) and hardware-synchronized start triggers-enabling simultaneous sampling of up to 18 channels across both converters for multi-axis motor current monitoring.

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

Yes, the LQFP64 package (10 × 10 mm) is RoHS-compliant and rated for industrial temperature range (–40°C to +85°C). Its thermal resistance θ_JA is 46 °C/W under standard JEDEC 2-layer board conditions, supporting continuous operation at full 72 MHz with passive cooling in most enclosed enclosures.