STMicroelectronics STM32F302RBT6TR

Overview

STM32F302RBT6TR 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 (0.20 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 motor control, digital power supplies, and industrial sensor nodes.

For engineers reviewing the STM32F302RBT6TR datasheet, STM32F302RBT6TR pinout, STM32F302RBT6TR application, or STM32F302RBT6TR equivalent, key selection criteria include analog peripheral integration (PGA, DAC, COMP), real-time timer architecture (advanced-control TIM1 with deadtime), CAN+USB coexistence, and LQFP64 package compatibility for space-constrained industrial control designs.

Technical Context

This MCU implements a tightly coupled Cortex-M4 core with hardware FPU and memory protection unit (MPU), enabling deterministic execution of DSP-intensive control loops. Its analog subsystem includes two independent OPAMPs configurable as PGAs with external gain-setting resistors, and dual ADCs supporting simultaneous sampling with selectable resolution (6/8/10/12 bits) across up to 17 channels.

The interconnect matrix enables concurrent access to Flash, SRAM, and peripherals without bus contention. Clock tree supports multiple sources: 4–32 MHz HSE crystal, 32 kHz LSE for RTC, 8 MHz HSI with PLL (up to 72 MHz), and 40 kHz LSI - with programmable voltage detector (PVD) and three low-power modes (Sleep, Stop, Standby) for energy-sensitive applications.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; 51 general-purpose I/Os (45 5 V-tolerant), dedicated analog supply pins (VDDA/VSSA), and separate VBAT for RTC backup.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F302RBT6TR, STM32F303RBT6 offers more memory for complex algorithms, while STM32G431RBT6 delivers superior analog speed and computational throughput - both retain LQFP64 footprint but differ in analog precision, clock performance, and peripheral feature depth.

Availability

STM32F302RBT6TR is available at Aetrix Electronics and suitable for motor control systems, digital power supplies, and industrial sensor nodes requiring stable component supply and long-term manufacturing continuity.

Supply support for STM32F302RBT6TR 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-sensitive industrial and consumer applications demanding rich analog integration and real-time control - designed specifically for motor drives, digital power, and human-interface systems where mixed-signal performance and compact packaging are critical.

FAQ

What is the maximum operating frequency and supported voltage range for STM32F302RBT6TR?

The STM32F302RBT6TR operates at up to 72 MHz using its internal PLL driven by HSE (4–32 MHz) or HSI (8 MHz). Its VDD and VDDA supply range is 2.0 V to 3.6 V, with VBAT supporting 1.65–3.6 V for RTC backup. All I/Os are 5 V-tolerant when VDD ≥ 2.0 V, enabling safe interfacing with legacy 5 V logic without level shifters.

Does STM32F302RBT6TR support hardware-based motor control features like deadtime insertion and emergency stop?

Yes. The advanced-control timer TIM1 provides hardware-configurable deadtime (1–128 ns) on all six complementary PWM outputs and supports emergency stop via BKIN input, which immediately disables PWM outputs and triggers fault handling. This meets IEC 60730 Class B requirements for functional safety in motor drive applications without external logic.

How many analog peripherals are integrated, and what are their key electrical specifications?

It integrates two 12-bit ADCs (0.20 µs conversion, 17-channel input, 0–3.6 V range), one 12-bit DAC (2.4–3.6 V analog supply), four rail-to-rail comparators (2–3.6 V supply, propagation delay <200 ns), and two OPAMPs usable as PGAs (gain 1–100×, GBW 10 MHz, input offset <1 mV). All analog blocks share dedicated VDDA/VSSA pins for noise isolation.

Is STM32F302RBT6TR pin-compatible with other STM32F3 packages, and what debug interfaces does it support?

STM32F302RBT6TR in LQFP64 is pin-compatible with STM32F303RBT6 and STM32F301RBT6 within the same package variant. It supports Serial Wire Debug (SWD) and JTAG via SWJ-DP, with full ETM trace capability for real-time instruction tracing. No external debug probe is needed beyond standard ST-LINK v2/v3, and SWDIO/SWCLK pins are multiplexed on PA13/PA14 by default.