STMicroelectronics STM32F302K6U6

Overview

STM32F302K6U6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, 32 KB Flash, 16 KB SRAM, integrated 12-bit DAC, three rail-to-rail comparators, and one programmable-gain operational amplifier. It operates from 2.0–3.6 V, supports USB 2.0 full-speed and CAN 2.0B interfaces, and targets analog-intensive embedded control applications such as motor drive feedback loops and sensor signal conditioning.

For engineers reviewing the STM32F302K6U6 datasheet, STM32F302K6U6 pinout, STM32F302K6U6 application, or STM32F302K6U6 equivalent, key selection criteria include its 32-pin UFQFPN package, 72 MHz CPU clock, 15-channel ADC with 0.20 µs conversion time, and dual-domain USART with ISO 7816 support for industrial HMI and power electronics monitoring systems.

Technical Context

The device integrates a tightly coupled Cortex-M4 core with single-cycle multiply and hardware divide, enabling real-time DSP operations in motor control and digital power conversion. Its analog subsystem includes a dedicated 2.4–3.6 V analog supply domain supporting simultaneous operation of the 12-bit DAC, temperature sensor, and op-amp in PGA mode.

The interconnect matrix enables concurrent peripheral access without bus contention, while the 7-channel DMA controller offloads data movement for ADC, SPI, I²C, and USB-critical for deterministic sampling in closed-loop control systems requiring sub-10 µs interrupt latency.

Key Specifications

Pinout & Package

STM32F302K6U6 uses a 32-pin UFQFPN (5 × 5 mm) package with 0.5 mm pitch, optimized for space-constrained motor control modules and smart sensors. The package supports reflow soldering and provides thermal pad for enhanced power dissipation during sustained analog operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F302K6U6, the F303K6U6 offers expanded analog resources and memory for algorithmically intensive tasks, while the F072K6T6 trades analog capability and performance for lower cost and simpler toolchain support-making it viable only in non-analog, non-real-time roles.

Availability

STM32F302K6U6 is available at Aetrix Electronics and suitable for motor control subsystems, industrial HMI panels, smart power sensors, and digital power supply monitors requiring stable component supply across extended production lifecycles.

Supply support for STM32F302K6U6 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 is designed for cost-effective, analog-rich embedded control-integrating precision op-amps, comparators, and high-speed ADCs to replace discrete analog signal chains in motor drives and sensor interfaces.

FAQ

Does STM32F302K6U6 support USB device mode without external PHY?

Yes. STM32F302K6U6 integrates a full-speed USB 2.0 transceiver compliant with USB Specification Rev 2.0. It requires only passive termination (1.5 kΩ pull-up on D+), no external PHY. The internal clock recovery circuit eliminates need for crystal on USB lines, simplifying layout and reducing BOM count.

What is the maximum operating temperature for the UFQFPN32 package?

The STM32F302K6U6 in UFQFPN32 package is rated for industrial temperature range: –40 °C to +85 °C ambient. Thermal resistance θ_JA is 150 °C/W (JEDEC standard PCB), and junction temperature must remain ≤125 °C under continuous operation-verified per ST's DS9896 Rev 8 Section 7.5.

Can the integrated op-amp be used as a unity-gain buffer?

Yes. The op-amp supports unity-gain configuration with external feedback resistor. Its rail-to-rail input/output, 10 MHz gain-bandwidth product, and 1.5 V/µs slew rate make it suitable for buffering ADC references or DAC outputs. Stability is ensured with ≥100 pF capacitive load per datasheet Section 3.13.

Is CAN bus functionality available on all 32 pins of the UFQFPN package?

No. CAN functionality is only available on PB8 (CAN_RX) and PB9 (CAN_TX) in the UFQFPN32 package. These pins are fixed-function and cannot be remapped. No other pins support CAN alternate functions-confirmed in Table 13 (Pin Definitions) and Section 3.20 of DS9896 Rev 8.