STMicroelectronics STM32F302R8T6TR

Overview

STM32F302R8T6TR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, 64 KB Flash, 16 KB SRAM, and integrated analog peripherals including 12-bit DAC, 12-bit ADC (0.20 μs conversion), three rail-to-rail comparators, one operational amplifier, and USB 2.0 full-speed + CAN 2.0B interfaces. 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 STM32F302R8T6TR datasheet, STM32F302R8T6TR pinout, STM32F302R8T6TR application, or STM32F302R8T6TR equivalent, key selection criteria include its 72 MHz CPU clock, 51 I/O pins (up to 18 capacitive sensing channels), dual-clock-domain USART with auto-baudrate detection, and LQFP64 package compatibility with legacy STM32F303 designs.

Technical Context

The STM32F302R8T6TR implements an Arm Cortex-M4 core with single-cycle MAC and hardware divide, enabling real-time DSP operations. Its interconnect matrix enables concurrent peripheral access without bus contention, supporting simultaneous ADC sampling, DAC output, and CAN message transmission.

It integrates dedicated analog subsystems: the OPAMP supports programmable gain amplifier (PGA) mode with all terminals accessible; the COMP block features fast propagation delay (<150 ns) and window mode; and the TSC supports up to 18 capacitive sensing channels for touchkey and rotary encoder interfaces - all sharing a common 2.4–3.6 V analog supply domain.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad - optimized for thermal dissipation in motor gate-driver co-location and industrial ambient conditions.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F302R8T6TR, STM32F303R8T6 adds a second DAC for differential signaling but shares identical analog performance and CAN capability, while STM32G431RBT6 trades CAN for higher clock speed and ADC bandwidth - making it optimal for digital power supply controllers without fieldbus needs.

Availability

STM32F302R8T6TR is available at Aetrix Electronics and suitable for motor control systems, industrial HMI panels, energy monitoring nodes, and USB-capable field instruments requiring stable component supply across extended product lifecycles.

Supply support for STM32F302R8T6TR 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 consolidate discrete signal-conditioning components into a single chip for motor control, sensing, and human-interface systems.

FAQ

What is the maximum operating temperature range for STM32F302R8T6TR?

The STM32F302R8T6TR is rated for industrial temperature range: –40°C to +85°C ambient. Its internal temperature sensor is calibrated across this range with ±1.5°C typical accuracy, and thermal characteristics (θ_JA = 44°C/W) are specified for LQFP64 package under JEDEC JESD51-2 conditions.

Does STM32F302R8T6TR support USB device mode without external components?

Yes - it integrates a full-speed USB 2.0 transceiver with internal pull-up resistors and voltage regulators. Only a single 1.5 kΩ pull-up resistor on D+ (PA12) and standard USB termination capacitors are required for device-mode operation; no external PHY or level shifter is needed.

Can the operational amplifier be configured as a programmable gain amplifier (PGA)?

Yes - the integrated OPAMP supports PGA mode with gain settings of 1, 2, 3, 4, 5, 8, 10, 16, 20, or 40× using internal resistor networks. All terminals (VIN+, VIN−, VOUT) are accessible on dedicated pins, allowing external feedback or compensation networks for precision applications.

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

No - the STM32F302R8T6TR implements only the CAN protocol controller (2.0B Active). An external ISO 11898-2 compliant transceiver (e.g., TJA1042, SN65HVD230) is required to interface with standard CAN bus wiring, providing differential signaling, fault tolerance, and common-mode rejection.