STMicroelectronics STM32F302R8T6

Overview

STM32F302R8T6 from STMicroelectronics is an Arm® Cortex®-M4 32-bit microcontroller with FPU, 64 KB Flash, 16 KB SRAM, integrated USB 2.0 full-speed interface, CAN 2.0B controller, and analog peripherals including 12-bit DAC, three rail-to-rail comparators, and one programmable-gain operational amplifier. It operates from 2.0–3.6 V and targets motor control, industrial sensing, and human-machine interface applications requiring mixed-signal integration.

For engineers reviewing the STM32F302R8T6 datasheet, STM32F302R8T6 pinout, STM32F302R8T6 application, or STM32F302R8T6 equivalent, key selection criteria include its 72 MHz CPU clock with DSP extensions, 15-channel 12-bit ADC (0.20 µs conversion), capacitive touch sensing support (up to 18 channels), and LQFP64 package with 51 fast I/Os - all validated for real-time embedded control in cost-constrained designs.

Technical Context

The device integrates a tightly coupled Arm Cortex-M4 core with single-cycle multiply and hardware divide, enabling deterministic execution of motor control algorithms and digital filtering. Its interconnect matrix routes up to 9 timers-including one 32-bit advanced-control timer with deadtime generation and quadrature encoder input-to peripherals without bus contention.

Analog subsystem co-location includes shared VDDA supply (2.0–3.6 V) for ADC, DAC, comparators, and op-amp, with independent calibration registers for VREFINT and temperature sensor. The USB and CAN interfaces operate concurrently with DMA-driven SPI/I²C/USART peripherals, supporting multi-protocol communication in industrial gateways.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch) package 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 STM32F303R8T6, the STM32F302R8T6 trades one DAC channel and op-amp spec margin for cost reduction while retaining identical CAN, USB, and motor control peripherals; versus STM32G431RBT6, it prioritizes CAN integration over raw CPU throughput, making it more suitable for deterministic industrial network edge nodes.

Availability

STM32F302R8T6 is available at Aetrix Electronics and suitable for motor control systems, industrial sensor nodes, human-machine interface panels, and industrial gateway controllers requiring stable component supply across production lifecycles.

Supply support for STM32F302R8T6 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, specializing in microcontrollers, power management, and analog/mixed-signal ICs for industrial, automotive, and consumer markets.

The STM32F3 series targets cost-sensitive, analog-rich embedded applications-designed to integrate precision signal acquisition, real-time control, and communication in a single chip for motor drives, medical instruments, and smart sensors.

FAQ

What is the maximum operating frequency and supported voltage range for STM32F302R8T6?

The STM32F302R8T6 operates at up to 72 MHz using its internal PLL, with a supply voltage range of 2.0 V to 3.6 V for VDD and VDDA. The analog supply (VDDA) must be within 2.0–3.6 V for proper ADC, DAC, comparator, and op-amp operation, and must be decoupled independently from VDD per datasheet layout guidelines.

Does STM32F302R8T6 support hardware-based capacitive touch sensing?

Yes, it integrates a dedicated Touch Sensing Controller (TSC) supporting up to 18 capacitive sensing channels with built-in charge transfer measurement, spread spectrum modulation, and automatic recalibration-enabling robust touchkey, linear slider, and rotary wheel implementations without external components or CPU overhead.

Can the op-amp in STM32F302R8T6 be configured as a programmable-gain amplifier?

Yes, the single rail-to-rail op-amp supports PGA mode with gain settings of 1, 2, 3, 4, 8, 16, or 32× via internal resistor ladder and switch matrix. All op-amp terminals (non-inverting input, inverting input, output) are accessible on GPIO pins, allowing flexible feedback network design and direct connection to ADC inputs.

Is the CAN interface on STM32F302R8T6 compliant with ISO 11898-2 physical layer standards?

No-the integrated CAN controller implements only the protocol layer (ISO 11898-1). A discrete CAN transceiver (e.g., TJA1042, SN65HVD230) is required to meet ISO 11898-2 physical layer requirements, including differential signaling, common-mode range, and fault protection.