STMicroelectronics STM32F301K8T7

Overview

STM32F301K8T7 from STMicroelectronics is an Arm® Cortex®-M4 32-bit microcontroller with FPU, 64 KB Flash, 16 KB SRAM, and integrated analog peripherals including a 12-bit DAC, three rail-to-rail comparators, one programmable-gain operational amplifier, and a 12-bit ADC (0.20 μs conversion time, 15-channel). 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 STM32F301K8T7 datasheet, STM32F301K8T7 pinout, STM32F301K8T7 application, or STM32F301K8T7 equivalent, key selection criteria include its single-cycle DSP-capable M4 core, analog supply flexibility (VDDA 2.0–3.6 V, VREF 2.4–3.6 V), 51 GPIOs with interrupt mapping, and embedded capacitive touch sensing for HMI interfaces.

Technical Context

The device integrates a tightly coupled Arm Cortex-M4 core with hardware floating-point unit and DSP extensions, enabling real-time filtering and closed-loop control. Its interconnect matrix decouples peripheral bus arbitration from CPU timing, supporting concurrent ADC sampling, DAC output, and timer-triggered PWM generation without CPU intervention.

Analog subsystem design centers on independent supply domains: VDDA powers the ADC, DAC, COMP, and OPAMP with dedicated reference voltage (2.4–3.6 V), while digital I/Os remain 5 V-tolerant up to 51 pins. The 96-bit unique ID and embedded CRC unit support secure firmware validation and field-programmable calibration storage.

Key Specifications

Pinout & Package

LQFP32 (7 × 7 mm, 0.8 mm pitch) package with exposed thermal pad - optimized for space-constrained industrial control modules requiring moderate thermal dissipation (max 100 mW at 85°C ambient).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F301K8T7, the STM32F303K8T6 adds USB but increases system complexity, while the STM32G431KB6 delivers superior analog performance at the cost of migration effort and higher BOM cost - making the F301K8T7 optimal for cost-sensitive, analog-intensive edge nodes where USB is unnecessary.

Availability

STM32F301K8T7 is available at Aetrix Electronics and suitable for industrial motor control, sensor signal conditioning, human-machine interface, and power supply monitoring requiring stable component supply across long-lifecycle production programs.

Supply support for STM32F301K8T7 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, analog-rich embedded applications - designed to consolidate signal acquisition, processing, and actuation in single-chip solutions for industrial automation and smart sensors.

FAQ

What is the maximum operating temperature range for STM32F301K8T7?

The STM32F301K8T7 is qualified for industrial temperature range: –40°C to +85°C ambient. Its internal temperature sensor is calibrated across this full range (±1.5°C accuracy), and all electrical characteristics-including ADC linearity, DAC monotonicity, and OPAMP gain error-are guaranteed within these limits per DS9895 Rev 8 Section 6.3.1.

Does STM32F301K8T7 support hardware encryption or secure boot?

No. The STM32F301K8T7 does not integrate hardware cryptographic accelerators (AES, SHA, PKA) or secure boot ROM. It relies on software-based security (e.g., ARM TrustZone-M is not implemented), and firmware integrity must be verified using the embedded CRC unit and external secure elements if required for certification.

Can the operational amplifier be used in transimpedance configuration?

Yes. The single OPAMP has all terminals accessible (non-inverting input, inverting input, output, and dedicated VOPA supply pin), allowing direct connection of photodiode or current-output sensor to the inverting input with feedback resistor to output - validated in ST Application Note AN4913 for optical sensor interfaces.

Is the LQFP32 package RoHS-compliant and lead-free?

Yes. The STM32F301K8T7 in LQFP32 package (part marking "K8T7") is fully RoHS-compliant and lead-free per EU Directive 2011/65/EU, with matte tin finish on leads and halogen-free molding compound - confirmed in ST's official material declaration document MD-0002-002 rev 12.