STMicroelectronics STM32F302RDT6TR

Overview

STM32F302RDT6TR from STMicroelectronics is an ARM® Cortex®-M4 32-bit microcontroller with FPU, 72 MHz max CPU frequency, 512 KB Flash, 64 KB SRAM (first 32 KB with HW parity), and integrated analog peripherals including two 12-bit ADCs (18-channel, 0.20 µs conversion), one 12-bit DAC, four rail-to-rail comparators, and two operational amplifiers usable in PGA mode - deployed in motor control, digital power conversion, and industrial sensing systems.

For engineers reviewing the STM32F302RDT6TR datasheet, STM32F302RDT6TR pinout, STM32F302RDT6TR application, or STM32F302RDT6TR equivalent, key selection considerations include its dual ADC architecture with selectable 6/8/10/12-bit resolution, flexible analog supply ranges (VDDA 2.0–3.6 V, VREFOPAMP 2.4–3.6 V), CAN 2.0B interface, and LQFP64 package with 51 GPIOs (including 24 capacitive sensing channels).

Technical Context

The device implements a tightly coupled ARM Cortex-M4 core with hardware FPU, single-cycle MAC, and memory protection unit (MPU), enabling deterministic real-time execution for closed-loop control. Its analog subsystem features independent voltage domains: VDDA powers ADCs, comparators, and Op-Amps, while dedicated VREFOPAMP (2.4–3.6 V) supports precision op-amp operation.

Clock architecture includes four oscillators (4–32 MHz HSE, 32 kHz LSE, 8 MHz HSI with x16 PLL, 40 kHz LSI), supporting dynamic switching between high-precision and low-power timing sources. The interconnect matrix enables concurrent peripheral access without bus contention, critical for simultaneous ADC sampling, PWM generation, and CAN messaging.

Key Specifications

Pinout & Package

LQFP64 package (10 × 10 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad; 64-pin square outline, 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 microcontroller applications.

Compared with STM32F302RDT6TR, STM32F303RCT6 trades FSMC and larger Flash for USB crystal-less operation, while STM32G431KBT6 delivers higher clock rate and improved analog specs at reduced memory capacity - both require PCB layout and firmware adaptation due to different pinouts and peripheral register maps.

Availability

STM32F302RDT6TR is available at Aetrix Electronics and suitable for motor control systems, digital power supplies, industrial sensor hubs, and human-machine interfaces requiring stable component supply across extended product lifecycles.

Supply support for STM32F302RDT6TR 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-intensive embedded applications - combining high-precision mixed-signal peripherals with Cortex-M4 performance for real-time control in resource-constrained environments.

FAQ

What is the maximum operating frequency and supported voltage range for STM32F302RDT6TR?

The STM32F302RDT6TR operates at up to 72 MHz using its internal PLL, with VDD and VDDA supply voltage ranging from 2.0 V to 3.6 V. It supports multiple clock sources including HSE (4–32 MHz), HSI (8 MHz), LSE (32.768 kHz), and LSI (40 kHz), allowing flexible trade-offs between precision, power consumption, and startup time in industrial applications.

Does STM32F302RDT6TR support hardware CRC calculation and memory protection?

Yes, it integrates a dedicated CRC calculation unit compliant with IEEE-802.3 and a memory protection unit (MPU) that enforces privilege levels and region-based access control. These features enable robust firmware integrity verification and safe multitasking in safety-critical applications such as industrial automation and power conversion systems.

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

The MCU integrates two 12-bit ADCs (18-channel total, 0.20 µs conversion time, 0–3.6 V input range), one 12-bit DAC (2.4–3.6 V analog supply), four rail-to-rail comparators (<100 ns propagation delay), and two operational amplifiers with PGA capability. All analog blocks share independent VDDA and VSSA connections to ensure noise isolation and measurement stability.

Is STM32F302RDT6TR pin-compatible with other STM32F3 devices in the same package?

No - while sharing the LQFP64 footprint with other STM32F302xD variants (e.g., STM32F302VDT6), it is not pin-compatible with STM32F303 or STM32G4 series devices due to differences in peripheral mapping, alternate function assignments, and power pin configurations. Pin compatibility is limited to same-part-number suffix variants within the F302xD family.