STMicroelectronics STM32F303R8T7TR

Overview

STM32F303R8T7TR from STMicroelectronics is an Arm® Cortex®-M4 32-bit MCU with FPU, operating up to 72 MHz, featuring 64 KB Flash, 16 KB SRAM (12 KB + 4 KB CCM), dual 12-bit ADCs (21-channel, 0.20 µs conversion), three 12-bit DACs, and one rail-to-rail operational amplifier-designed for real-time motor control, analog signal conditioning, and capacitive touch interfaces in industrial and consumer equipment.

For engineers reviewing the STM32F303R8T7TR datasheet, STM32F303R8T7TR pinout, STM32F303R8T7TR application, or STM32F303R8T7TR equivalent, key selection criteria include integrated op-amp PGA capability, simultaneous high-speed ADC/DAC operation, CAN 2.0B interface support, and LQFP64 package compatibility with mixed-signal timing-critical designs.

Technical Context

The device integrates a Cortex-M4 core with hardware floating-point unit and DSP instructions, enabling deterministic execution of motor control algorithms and digital filtering. Its interconnect matrix decouples peripheral bus arbitration, allowing concurrent ADC sampling, DAC output, and CAN message transmission without CPU intervention.

Power management includes programmable voltage detector (PVD), multiple low-power modes (Sleep/Stop/Standby), and separate VDDA (2.0–3.6 V) and VREF+ (2.4–3.6 V) supplies for analog peripherals-ensuring stable 12-bit ADC/DAC accuracy across temperature and supply variation.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant ECOPACK®2 construction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F303K8T6 and STM32F303C8T6, the STM32F303R8T7TR uniquely delivers full analog integration (op-amp + 3 DACs + 2 ADCs + 3 comparators), TSC, and advanced timer resources in LQFP64-making it the only option among the three for complete motor control + touch + sensor fusion in a single chip.

Availability

STM32F303R8T7TR is available at Aetrix Electronics and suitable for motor control systems, industrial sensor hubs, capacitive touch interfaces, and automotive body control modules requiring stable component supply across multi-year production cycles.

Supply support for STM32F303R8T7TR 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.

The STM32F3 series targets cost-sensitive, analog-intensive applications-designed to integrate precision analog peripherals (op-amps, comparators, DACs) with real-time control capabilities in a single Cortex-M4 MCU.

FAQ

What is the maximum operating frequency and supported clock sources?

The STM32F303R8T7TR operates at up to 72 MHz using its internal 8 MHz RC oscillator with PLL multiplication, external 4–32 MHz crystal oscillator, or 32 kHz RTC crystal. The PLL supports integer and fractional multiplication factors, enabling precise clock tree configuration for USB, CAN, and ADC sampling synchronization.

Does this MCU support hardware-accelerated cryptographic operations?

No. The STM32F303R8T7TR does not include dedicated cryptographic accelerators (AES, SHA, PKA). It relies on software libraries for encryption tasks. For hardware crypto, consider STM32L4 or STM32H7 series devices with CryptoCell or AES engines.

What is the analog supply voltage range for the op-amp and DACs?

The op-amp and DACs require VDDA between 2.4 V and 3.6 V. This tighter lower bound (vs. 2.0 V for core logic) ensures stable biasing and full 12-bit linearity across the specified operating temperature range (–40°C to +85°C).

Can the integrated op-amp be used in instrumentation amplifier configuration?

Yes-the op-amp supports programmable gain (1× to 100×) in PGA mode using internal resistors, and its inputs/outputs are fully accessible on dedicated pins. External resistor networks can extend gain range and enable true 3-op-amp instrumentation amplifier topologies with matched common-mode rejection.