STMicroelectronics STM32F301C4T6

Overview

STM32F301C4T6 from STMicroelectronics is a 32-bit ARM Cortex-M4F microcontroller with FPU, operating at up to 72 MHz, featuring 16 KB Flash, 4 KB SRAM, and integrated analog peripherals including 12-bit ADC (5 MSPS), dual 12-bit DACs, and high-speed comparators. It targets motor control, digital power conversion, and sensor signal conditioning in industrial and consumer equipment.

For engineers reviewing the STM32F301C4T6 datasheet, STM32F301C4T6 pinout, STM32F301C4T6 application, or STM32F301C4T6 equivalent, key selection criteria include its 48-pin LQFP package, 1.65–3.6 V supply range, -40°C to +85°C industrial temperature grade, and support for real-time control via hardware-accelerated math (DSP instructions) and fast interrupt latency (≤12 cycles).

Technical Context

The STM32F301C4T6 implements the ARMv7E-M architecture with single-precision floating-point unit (FPU), enabling deterministic execution of control loops and sensor fusion algorithms. Its core integrates NVIC with 68 programmable interrupts, MPU for memory protection, and SysTick timer for RTOS scheduling.

Analog subsystem includes three independent 12-bit ADCs with hardware oversampling, two synchronized 12-bit DACs with output buffers, and four rail-to-rail comparators with programmable hysteresis-designed for closed-loop feedback in motor drives and power supplies.

Key Specifications

Pinout & Package

STM32F301C4T6 is housed in a 48-pin LQFP package with standard 0.5 mm pitch and exposed thermal pad (EP). Pin functions are validated per ST's DS11595 (Rev 7, April 2022) and reference manual RM0316.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F301C4T6, STM32F030F4P6 sacrifices analog precision and computational throughput for lower BOM cost, while STM32F303K8T6 adds op-amps and memory headroom at the expense of larger footprint and higher power in idle states.

Availability

STM32F301C4T6 is available at Aetrix Electronics and suitable for motor control, digital power conversion, sensor signal conditioning, and industrial PLC I/O modules requiring stable component supply and long-term industrial-grade availability.

Supply support for STM32F301C4T6 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 real-time control applications-emphasizing integrated precision analog, fast interrupt response, and deterministic DSP execution for motor drives and power electronics.

FAQ

What is the maximum operating frequency and supported voltage range for STM32F301C4T6?

The STM32F301C4T6 operates at up to 72 MHz using its internal HSI14 oscillator or external crystal (up to 24 MHz with PLL multiplication). Its supply voltage range is strictly 1.65–3.6 V; operation outside this range risks data corruption or permanent damage. The device includes brown-out reset (BOR) circuitry with four selectable thresholds (2.1/2.4/2.7/2.9 V) to ensure reliable startup and shutdown sequencing.

Does STM32F301C4T6 support hardware-accelerated floating-point operations?

Yes, the STM32F301C4T6 integrates a single-precision ARM Cortex-M4F floating-point unit (FPU) compliant with IEEE 754-2008. It executes common FP32 operations-including addition, multiplication, division, and square root-in one cycle (multiply-add in two cycles), enabling deterministic execution of PID controllers, Clarke/Park transforms, and sensor fusion algorithms without software emulation overhead.

How many analog-to-digital converter (ADC) channels does STM32F301C4T6 provide, and what is their effective resolution?

The STM32F301C4T6 features one 12-bit ADC with up to 16 multiplexed input channels and hardware oversampling capability. With 16x oversampling and digital filtering, it achieves an effective resolution of 16 bits at 125 kSPS or 14 bits at 5 MSPS. All ADC channels support simultaneous sampling with the DACs and comparators for tightly coupled analog control loops.

Can STM32F301C4T6 be used in safety-critical applications requiring functional safety certification?

The STM32F301C4T6 itself is not ASIL-B or SIL-2 certified, but it includes hardware features supporting functional safety implementation: memory protection unit (MPU), clock security system (CSS), independent watchdog (IWDG), and hardware CRC calculation. Customers must perform full system-level assessment per IEC 61508 or ISO 26262, including diagnostic coverage analysis and FMEDA, to achieve target safety integrity levels.