STMicroelectronics STM32F301C8Y6TR

Overview

STM32F301C8Y6TR 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 ADC (0.20 μs), 12-bit DAC, three rail-to-rail comparators, and one programmable-gain operational amplifier. It operates from 2.0–3.6 V and targets sensor signal conditioning and motor control in compact industrial and consumer devices.

For engineers reviewing the STM32F301C8Y6TR datasheet, STM32F301C8Y6TR pinout, STM32F301C8Y6TR application, or STM32F301C8Y6TR equivalent, key selection criteria include analog integration density, 72 MHz CPU performance with DSP extensions, capacitive touch support (up to 18 channels), and WLCSP49 package suitability for space-constrained PCB layouts.

Technical Context

The device implements a tightly coupled Cortex-M4 core with single-cycle multiply and hardware divide, enabling real-time digital filtering and motor control algorithms. Its analog subsystem features independent voltage domains: VDDA (2.0–3.6 V) for ADC/COMP and VREF+ (2.4–3.6 V) for DAC/OPAMP, ensuring precision signal chain integrity.

Peripherals are interconnected via an AHB/APB matrix supporting concurrent high-bandwidth transfers-e.g., DMA-driven ADC sampling feeding into TIM1 advanced timer PWM generation with deadtime insertion, all synchronized to a configurable PLL clock tree derived from HSE (4–32 MHz), HSI (8 MHz), or LSE (32.768 kHz).

Key Specifications

Pinout & Package

STM32F301C8Y6TR uses a 49-pin WLCSP (Wafer-Level Chip-Scale Package) with 0.4 mm pitch and 3.417 × 3.151 mm footprint, optimized for ultra-compact PCB designs requiring minimal board area and low parasitic inductance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F303C8T6 and STM32G431CBU6, the STM32F301C8Y6TR delivers optimal analog integration density per mm² in WLCSP49, making it ideal for cost-sensitive, space-constrained applications where USB or >72 MHz processing is unnecessary.

Availability

STM32F301C8Y6TR is available at Aetrix Electronics and suitable for motor control, capacitive touch HMI, sensor signal conditioning, and industrial I/O modules requiring stable component supply across production lifecycles.

Supply support for STM32F301C8Y6TR 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 management ICs, MEMS sensors, and automotive-grade components.

The STM32F3 series targets cost-sensitive, analog-intensive embedded applications-specifically engineered to integrate high-precision analog peripherals with Cortex-M4 performance in compact packages for industrial and consumer edge devices.

FAQ

What is the maximum operating frequency and supported voltage range for STM32F301C8Y6TR?

The STM32F301C8Y6TR operates at up to 72 MHz using its internal PLL, with core and I/O supply (VDD) rated from 2.0 V to 3.6 V. The analog supply (VDDA) shares the same 2.0–3.6 V range, while the DAC and OPAMP reference (VREF+) requires 2.4–3.6 V. All specifications are validated across industrial temperature range (–40°C to +85°C) per DS9895 Rev 8.

Does STM32F301C8Y6TR support hardware-accelerated capacitive touch sensing?

Yes-it integrates a dedicated Touch Sensing Controller (TSC) supporting up to 18 capacitive sensing channels with hardware charge transfer, spread spectrum modulation, and built-in noise filtering. This enables robust touchkey, linear slider, and rotary wheel implementations without CPU intervention, as confirmed in Section 3.20 of the datasheet.

What debug interfaces are available on STM32F301C8Y6TR?

The device supports Serial Wire Debug (SWD) and JTAG via the SWJ-DP (Serial Wire JTAG Debug Port), using dedicated pins PA13 (SWDIO), PA14 (SWCLK), and optionally PA15 (JTDI) and PB3 (JTDO). SWD is the recommended interface for space-constrained WLCSP layouts due to its 2-pin requirement versus JTAG's 5-pin footprint.

Is STM32F301C8Y6TR pin-compatible with other STM32F301 variants?

No-STM32F301C8Y6TR uses the WLCSP49 package (3.417 × 3.151 mm), while other variants like STM32F301C8T6 use LQFP48 and STM32F301R8T6 use LQFP64. Pin mapping differs significantly across packages; migration requires PCB redesign and careful validation of peripheral pin assignments per Table 13 in DS9895.