STMicroelectronics STM32F302RCT6TR

Overview

STM32F302RCT6TR from STMicroelectronics is an Arm® Cortex®-M4 32-bit MCU with FPU, operating up to 72 MHz, featuring 256 KB Flash, 40 KB SRAM (16 KB with HW parity), dual 12-bit ADCs (17-channel, 0.20 µs conversion), one 12-bit DAC, four rail-to-rail comparators, two programmable-gain operational amplifiers, and integrated CAN 2.0B interface - deployed in motor control, digital power conversion, and industrial sensor fusion systems.

For engineers reviewing the STM32F302RCT6TR datasheet, STM32F302RCT6TR pinout, STM32F302RCT6TR application, or STM32F302RCT6TR equivalent, key selection criteria include analog peripheral integration (PGA + COMP + DAC + dual ADC), 64-pin LQFP package compatibility, 2.0–3.6 V supply range, CAN+USB+I²C+SPI connectivity, and support for capacitive touch sensing across 24 channels.

Technical Context

The device implements a tightly coupled Cortex-M4 core with single-cycle multiply, hardware divide, DSP extensions, and MPU for real-time deterministic execution. Its analog subsystem integrates two independent OPAMPs configurable as PGAs with external gain-setting resistors, four fast comparators with window mode, and dual ADCs sharing a common analog domain with selectable 6/8/10/12-bit resolution and differential input capability.

Clock architecture supports multiple sources: 4–32 MHz HSE crystal, 32 kHz LSE for RTC, 8 MHz HSI with PLL multiplication, and 40 kHz LSI for watchdogs. The interconnect matrix enables concurrent peripheral access without bus contention, while the 12-channel DMA controller offloads data movement for ADC, DAC, SPI, and USB transfers.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, with exposed thermal pad. Pin count and I/O mapping validated per STMicroelectronics DS9911 Rev 9, Section 4 ("Pinouts and pin description").

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F302RCT6TR, STM32F303RCT6 offers identical footprint and firmware compatibility with added metrology-grade ADC capability, while STM32G431KBT6 delivers superior analog speed and integration at the cost of minor register-level differences - both require validation for existing F302-based firmware porting.

Availability

STM32F302RCT6TR 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 production lifecycles.

Supply support for STM32F302RCT6TR 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 with vertical manufacturing and broad industrial IP portfolio.

The STM32F3-series targets cost-sensitive, analog-intensive embedded applications - emphasizing integrated signal conditioning, real-time control, and energy efficiency for industrial automation and digital power markets.

FAQ

What is the maximum operating frequency and supported clock sources for STM32F302RCT6TR?

The STM32F302RCT6TR operates at up to 72 MHz using its internal 8 MHz HSI oscillator multiplied by the PLL, or externally from a 4–32 MHz crystal (HSE). It also supports 32 kHz LSE for RTC and 40 kHz LSI for watchdogs - all sources are switchable at runtime without reset, enabling dynamic power/performance trade-offs.

Does STM32F302RCT6TR support hardware CRC and memory protection?

Yes - it includes a dedicated CRC calculation unit supporting CRC-32 (IEEE 802.3) with programmable polynomial and seed, and a Memory Protection Unit (MPU) that enforces privilege levels and region-based access control across Flash, SRAM, and peripherals - both essential for functional safety compliance (IEC 61508 SIL2).

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

It integrates two 12-bit ADCs (17-channel, 0.20 µs conversion, 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), and two OPAMPs usable as PGAs (2.4–3.6 V supply). All analog blocks share independent VDDA/VSSA pins to minimize digital noise coupling.

Is STM32F302RCT6TR pin-compatible with other STM32F3 devices in LQFP64 package?

Yes - it shares identical pinout with STM32F302RBT6 (128 KB Flash) and STM32F303RBT6/RC T6 variants in LQFP64. Firmware and hardware designs are interchangeable within the same Flash/SRAM configuration, enabling scalable product families with minimal layout changes.