STMicroelectronics STM32F302RCT7

Overview

STM32F302RCT7 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, 0.2 µs conversion), one 12-bit DAC, four rail-to-rail comparators, and two programmable-gain operational amplifiers. It integrates CAN 2.0B, USB FS, five USARTs, 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 STM32F302RCT7 datasheet, STM32F302RCT7 pinout, STM32F302RCT7 application, or STM32F302RCT7 equivalent, key selection considerations include its analog-intensive peripheral set (PGA, COMP, DAC, dual ADC), 64-pin LQFP package with 51 GPIOs (including 24 capacitive sensing channels), and support for real-time control via advanced timers with deadtime generation and emergency stop.

Technical Context

The STM32F302RCT7 implements a tightly coupled Cortex-M4 core with single-cycle MAC, hardware divide, DSP extensions, and MPU-enabling deterministic execution for closed-loop control. Its analog subsystem includes two independent OPAMPs configurable as PGAs (gain 1–16), four fast comparators with internal hysteresis, and dual ADCs sharing a common analog domain with selectable resolution (6/8/10/12-bit) and differential input capability.

Clock architecture combines four oscillators (HSE 4–32 MHz, LSE 32.768 kHz, HSI 8 MHz, LSI 40 kHz), a PLL supporting up to 72 MHz system clock, and flexible prescaler routing. Peripheral interconnect matrix enables concurrent high-bandwidth transfers between ADCs, DAC, timers, and DMA without CPU intervention.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch) package with 51 user-accessible GPIOs, including 24 dedicated capacitive sensing channels, 16 5V-tolerant pins, and full SWD/JTAG debug interface (SWCLK, SWDIO, NRST).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F302RCT7, STM32F303RCT7 adds guaranteed DAC monotonicity and extra SRAM at identical pinout and price tier, while STM32G431KBT6 delivers significantly higher analog throughput and compute bandwidth but requires layout revision due to different package (LQFP32 vs. LQFP64) and voltage regulator requirements.

Availability

STM32F302RCT7 is available at Aetrix Electronics and suitable for motor control systems, digital power supplies, industrial sensor nodes, and human-machine interfaces requiring stable component supply and long-term production support.

Supply support for STM32F302RCT7 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, MEMS, and automotive semiconductors.

The STM32F3 series targets cost-sensitive, analog-rich embedded applications-specifically engineered to integrate high-precision analog peripherals (PGA, COMP, DAC, dual ADC) with real-time control capabilities in a single chip for industrial and consumer power systems.

FAQ

What is the maximum operating frequency and supported voltage range for STM32F302RCT7?

The STM32F302RCT7 operates at up to 72 MHz using its internal PLL and supports a VDD/VDDA supply range of 2.0 V to 3.6 V. Its voltage regulator enables stable core operation across this range, with specified performance validated per DS9911 Rev 9 Section 6.3.1 - including 72 MHz operation at 3.6 V and 64 MHz at 2.0 V minimum.

Does STM32F302RCT7 support hardware CRC calculation and memory protection?

Yes, it includes a dedicated CRC calculation unit compliant with IEEE-802.3 and a Memory Protection Unit (MPU) supporting eight regions with configurable access permissions and attributes. These features are documented in Sections 3.6 and 3.2 of DS9911 Rev 9 and are used in safety-critical firmware for integrity checking and privilege separation.

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

It integrates two 12-bit ADCs (17-channel, 0.2 µs conversion, 12/10/8/6-bit resolution), one 12-bit DAC (2.4–3.6 V analog supply), four rail-to-rail comparators (2–3.6 V supply, 100 ns propagation delay), and two OPAMPs usable as PGAs (gain 1–16, 2.4–3.6 V supply). All specs are confirmed in DS9911 Rev 9 Tables 68–72 and Section 3.13–3.16.

Is STM32F302RCT7 pin-compatible with other STM32F3 devices?

Yes - the LQFP64 variant (RCT7) shares identical pinout with STM32F302RBT6, STM32F303RBT6, and STM32F303RCT7 in the same package. Pin compatibility is verified in ST's "Pinouts and pin description" chapter (Section 4, DS9911 Rev 9), enabling drop-in replacement where flash size, SRAM, or peripheral differences permit.