STMicroelectronics STM32F303C8Y6TR

Overview

STM32F303C8Y6TR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, operating up to 72 MHz, featuring 64 KB Flash, 12 KB SRAM with hardware parity, and integrated analog peripherals including two 12-bit ADCs (0.20 µs conversion), three 12-bit DACs, three rail-to-rail comparators, and one programmable-gain operational amplifier - deployed in motor control, digital power conversion, and sensor signal conditioning systems.

For engineers reviewing the STM32F303C8Y6TR datasheet, STM32F303C8Y6TR pinout, STM32F303C8Y6TR application, or STM32F303C8Y6TR equivalent, key selection criteria include ADC/DAC co-sampling capability, op-amp PGA configuration for current sensing, CAN 2.0B interface support, and UFQFPN32 package thermal performance in space-constrained industrial controllers.

Technical Context

The device integrates an Arm Cortex-M4 core with single-cycle multiply and hardware divide, delivering 90 DMIPS at 72 MHz. Its analog subsystem includes dual independent ADCs with selectable 6/8/10/12-bit resolution, differential input support, and separate VDDA supply (2.0–3.6 V), enabling simultaneous high-speed acquisition of voltage and current signals in closed-loop control.

Clock architecture supports four oscillator sources: 4–32 MHz HSE crystal, 32 kHz LSE for RTC, 8 MHz HSI (PLL-tunable to 72 MHz), and 40 kHz LSI. The interconnect matrix enables concurrent peripheral access without bus contention, critical for real-time PWM generation, ADC triggering, and CAN message handling.

Key Specifications

Pinout & Package

STM32F303C8Y6TR uses the UFQFPN32 package (5 × 5 mm, 0.5 mm pitch) with an exposed thermal pad (EP) on the underside for improved thermal management in continuous-duty applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F303K8T6, the STM32F303C8Y6TR offers superior thermal performance in dense layouts; versus STM32G431CBU6, it trades higher analog bandwidth for proven qualification in extended temperature industrial environments (-40°C to +105°C).

Availability

STM32F303C8Y6TR is available at Aetrix Electronics and suitable for motor control, digital power conversion, sensor signal conditioning, and industrial CAN node applications requiring stable component supply across multi-year production cycles.

Supply support for STM32F303C8Y6TR 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 devices, sensors, and analog ICs for industrial, automotive, and consumer markets.

The STM32F3 series targets cost-sensitive, analog-intensive embedded applications - emphasizing integrated precision analog peripherals, real-time control capability, and compact packaging for space-constrained industrial equipment.

FAQ

What is the maximum operating temperature range for STM32F303C8Y6TR?

The STM32F303C8Y6TR is qualified for industrial temperature range: –40 °C to +105 °C. This rating is verified per ST's ECOPACK2 compliance and JEDEC JESD47 stress testing, ensuring reliability in enclosed motor drives and power supplies without active cooling.

Does STM32F303C8Y6TR support hardware CRC calculation?

Yes, it includes a dedicated cyclic redundancy check (CRC) calculation unit compliant with IEEE-802.3, enabling fast integrity verification of Flash contents, communication payloads, or configuration data without CPU overhead - critical for functional safety diagnostics per IEC 61508.

Can the op-amp in STM32F303C8Y6TR drive capacitive loads directly?

No - the integrated op-amp is not unity-gain stable with capacitive loads >100 pF. For driving ADC inputs or filters, external isolation resistors (≥1 kΩ) are required. ST Application Note AN4272 specifies layout and compensation guidelines for stable operation.

Is the UFQFPN32 package of STM32F303C8Y6TR compatible with standard reflow profiles?

Yes - it follows JEDEC J-STD-020D moisture sensitivity level 3 (MSL3) and supports standard lead-free reflow profiles (peak 260 °C, 10–30 sec). The exposed thermal pad must be soldered to a solid copper thermal plane using ≥50% solder paste coverage for mechanical and thermal reliability.