STMicroelectronics STM32F301K6U7TR

Overview

STM32F301K6U7TR from STMicroelectronics is an Arm® Cortex®-M4 32-bit microcontroller with FPU, 32 KB Flash, 16 KB SRAM, and integrated analog peripherals including a 12-bit DAC, three rail-to-rail comparators, one operational amplifier (PGA-capable), and a 12-bit ADC with 0.20 µs conversion time. It operates from 2.0–3.6 V and targets sensor signal conditioning and motor control in compact industrial edge nodes.

For engineers reviewing the STM32F301K6U7TR datasheet, STM32F301K6U7TR pinout, STM32F301K6U7TR application, or STM32F301K6U7TR equivalent, this MCU delivers deterministic real-time control with hardware-accelerated DSP instructions, low-latency analog front-end integration, and flexible clocking for cost-sensitive embedded systems requiring mixed-signal precision.

Technical Context

The device implements a tightly coupled Arm Cortex-M4 core with single-cycle multiply and hardware divide, supporting deterministic execution of control loops. Its analog subsystem includes a dedicated 2.4–3.6 V analog supply domain for the DAC, op-amp, and comparators-enabling independent noise isolation from digital switching.

It features an interconnect matrix enabling concurrent peripheral access without bus contention, and supports up to 18 capacitive sensing channels with built-in charge transfer logic for touchkey and rotary interface applications without external components.

Key Specifications

Pinout & Package

STM32F301K6U7TR uses the UFQFPN32 package: 32-pin, 5 × 5 mm body, 0.5 mm pitch, exposed thermal pad (EP) on underside for enhanced thermal performance in continuous operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F301K6U7TR, STM32F072CBT6 trades analog integration for lower cost and simpler toolchain support, while STM32G431KB6 extends real-time analog processing capability at the expense of footprint and bill-of-materials cost-making the F301 optimal for space-constrained, cost-sensitive industrial edge nodes needing balanced mixed-signal performance.

Availability

STM32F301K6U7TR is available at Aetrix Electronics and suitable for motor control interfaces, sensor signal conditioning, industrial touch HMI, and power supply monitoring requiring stable component supply across multi-year production cycles.

Supply support for STM32F301K6U7TR 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 industrial applications requiring high-precision analog integration and real-time control-designed specifically to replace discrete analog + MCU solutions with a single, validated, production-ready chip.

FAQ

What is the maximum operating frequency and supported voltage range for STM32F301K6U7TR?

The STM32F301K6U7TR operates at up to 72 MHz using its internal PLL and supports a VDD supply range of 2.0 V to 3.6 V. The analog domain (VDDA) requires 2.0–3.6 V, with DAC and op-amp functional from 2.4 V minimum. All specifications-including ADC accuracy and timing-are guaranteed across this full voltage and temperature range per DS9895 Rev 8.

Does STM32F301K6U7TR support hardware-based capacitive touch sensing?

Yes, it integrates a dedicated Touch Sensing Controller (TSC) supporting up to 18 capacitive sensing channels with built-in charge transfer, spread spectrum, and acquisition timing control. No external RC components or dedicated touch ICs are required-electrode connections go directly to designated GPIOs (e.g., PA0–PA7, PB0–PB1), and measurements are DMA-accessible for low-CPU-load scanning.

How many analog peripherals are integrated, and what are their key electrical specs?

It integrates one 12-bit DAC (2.4–3.6 V supply, monotonicity guaranteed), three ultra-fast comparators (propagation delay <120 ns, 2.0–3.6 V supply), one rail-to-rail op-amp (gain bandwidth 10 MHz, PGA mode with selectable gain 1–16), and one 12-bit ADC (0.20 µs conversion, ±1 LSB INL, 0–3.6 V input range). All share independent analog supply domains for noise isolation.

What debug interfaces does STM32F301K6U7TR provide, and are they accessible in all packages?

It supports Serial Wire Debug (SWD) and JTAG via dedicated SWCLK/SWDIO/NRST pins. These interfaces are fully implemented and electrically accessible in the UFQFPN32 package-SWCLK and SWDIO are assigned to PA14 and PA13 respectively, both exposed on outer rows of the 5×5 mm body. No trace routing or special layout is needed beyond standard 100 Ω impedance control and local decoupling.