STMicroelectronics STM32F302K8U6TR

Overview

STM32F302K8U6TR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, 64 KB Flash, 16 KB SRAM, integrated USB 2.0 full-speed interface, CAN 2.0B controller, and analog peripherals including 12-bit DAC, rail-to-rail comparators, and programmable-gain operational amplifier. It operates from 2.0–3.6 V and targets motor control, industrial sensing, and USB-connected embedded systems.

For engineers reviewing the STM32F302K8U6TR datasheet, STM32F302K8U6TR pinout, STM32F302K8U6TR application, or STM32F302K8U6TR equivalent, key selection criteria include its 72 MHz CPU clock, 15-channel 12-bit ADC with 0.20 µs conversion, dual-clock-domain USART with ISO 7816 support, and UFQFPN32 (5×5 mm) package with 32 I/O pins - all critical for space-constrained real-time control designs.

Technical Context

The device integrates an Arm Cortex-M4 core with single-cycle multiply and hardware divide, supporting DSP instructions for real-time signal processing. Its analog subsystem includes one 12-bit DAC channel (2.4–3.6 V analog supply), three ultra-fast comparators, and one op-amp configurable in PGA mode with full terminal access.

Timing architecture features nine timers: one 32-bit general-purpose timer with quadrature encoder input, one 16-bit advanced-control timer with deadtime generation and emergency stop, and a dedicated 16-bit basic timer for DAC triggering - enabling precise PWM, motor commutation, and synchronized analog output.

Key Specifications

Pinout & Package

STM32F302K8U6TR uses the UFQFPN32 (5 × 5 mm) package with 0.5 mm pitch and exposed thermal pad. This 32-pin QFN variant supports compact board layout while maintaining thermal performance for continuous 72 MHz operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F303K8U6TR, the STM32F302K8U6TR trades SRAM and ADC precision for lower cost and identical CAN/USB functionality; versus STM32G431K8U6, it retains CAN but sacrifices CPU speed and analog channel count - making it optimal for cost-sensitive, CAN-connected edge nodes.

Availability

STM32F302K8U6TR is available at Aetrix Electronics and suitable for motor control systems, industrial sensor nodes, USB human interface devices, and smart power outlets requiring stable component supply across production lifecycles.

Supply support for STM32F302K8U6TR 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 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 integrate precision analog peripherals (op-amps, comparators, DACs) with real-time control capabilities in compact packages.

FAQ

What is the maximum operating frequency of the STM32F302K8U6TR?

The STM32F302K8U6TR features an Arm Cortex-M4 core with FPU running at up to 72 MHz. This frequency is achieved using the internal 8 MHz RC oscillator with PLL multiplication or an external 4–32 MHz crystal. All peripherals-including ADC, DAC, and timers-are fully functional at this clock rate, with timing specifications validated per DS9896 Rev 8 Section 6.3.16.

Does the STM32F302K8U6TR support USB device mode without external components?

Yes, the STM32F302K8U6TR integrates a full-speed USB 2.0 transceiver compliant with USB specification revision 2.0. It requires only standard USB termination resistors (1.5 kΩ pull-up on D+ and 22 Ω series resistors) and no external PHY. The internal regulator powers the USB interface, and descriptors are managed via firmware using ST's USB Device Library.

How many analog-to-digital converter (ADC) channels does this MCU support?

The STM32F302K8U6TR includes one 12-bit ADC with up to 15 input channels, selectable resolution (6/8/10/12 bits), and 0.20 µs conversion time. Channels are distributed across GPIO ports (e.g., PA0–PA7, PB0–PB1, PC0–PC5), with dedicated VREF+ and VREF− pins. The ADC supports single-ended and differential modes, and its analog supply (VDDA) ranges from 2.0 to 3.6 V.

Is the UFQFPN32 package of the STM32F302K8U6TR RoHS-compliant and lead-free?

Yes, the STM32F302K8U6TR in UFQFPN32 packaging is RoHS-compliant and lead-free, meeting EU Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level (MSL) 3 requirements. The device is qualified for industrial temperature range (–40°C to +85°C), and its Pb-free finish uses matte tin plating per ST's manufacturing standards documented in AN4828.