STMicroelectronics STM32F302K8U7

Overview

STM32F302K8U7 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 conversion), 12-bit DAC, three rail-to-rail comparators, one operational amplifier, and USB 2.0 full-speed + CAN 2.0B interfaces. It operates from 2.0–3.6 V and targets motor control, industrial sensing, and human-machine interface applications requiring mixed-signal integration in compact form.

For engineers reviewing the STM32F302K8U7 datasheet, STM32F302K8U7 pinout, STM32F302K8U7 application, or STM32F302K8U7 equivalent, key selection criteria include its 48-pin UFQFPN package, 72 MHz CPU clock, analog supply flexibility (VDDA 2.0–3.6 V, VREF+ 2.4–3.6 V), and support for capacitive touch sensing across 18 channels - critical for space-constrained embedded designs with real-time signal conditioning needs.

Technical Context

The STM32F302K8U7 implements an Arm Cortex-M4 core with hardware floating-point unit and DSP instructions, enabling deterministic execution of motor control algorithms and digital filtering. Its interconnect matrix routes up to 51 GPIOs to multiple peripherals-including three I²C, three USART, two SPI/I²S, USB, CAN, and seven DMA channels-without bus contention.

Analog subsystem integration includes a dedicated 12-bit DAC channel with separate analog supply (2.4–3.6 V), three ultra-fast comparators with programmable hysteresis, and one fully accessible op-amp configurable as a programmable-gain amplifier (PGA), all sharing a common VDDA domain and supporting simultaneous high-resolution acquisition and real-time signal conditioning.

Key Specifications

Pinout & Package

STM32F302K8U7 uses the UFQFPN32 (5 × 5 mm) package with 32 pins, including exposed thermal pad (EP). Pin assignments are validated per STMicroelectronics DS9896 Rev 8, Section 4 (Pinouts and pin description), with 25 GPIOs, 3x VDD/VSS pairs, VDDA/VSSA, VREF+, NRST, BOOT0, and dedicated peripheral pins for USB D+/D−, CAN TX/RX, and analog functions.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F302K8U7, STM32F303K8U7 extends analog capability without footprint change, while STM32G431K8U7 trades CAN for computational throughput and security features - making the F302 optimal for cost-sensitive, CAN-reliant industrial edge nodes.

Availability

STM32F302K8U7 is available at Aetrix Electronics and suitable for motor control systems, industrial sensor nodes, HMI panels, and USB-CAN diagnostic tools requiring stable component supply and long-term manufacturability.

Supply support for STM32F302K8U7 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, designing and manufacturing microcontrollers, power ICs, sensors, and analog products for industrial, automotive, and consumer markets.

The STM32F3 series targets cost-sensitive, analog-rich embedded applications - combining Cortex-M4 performance with precision op-amps, comparators, and capacitive touch to replace discrete signal-chain components in motor drives and smart sensors.

FAQ

What is the maximum operating frequency and supported voltage range for STM32F302K8U7?

The STM32F302K8U7 operates at up to 72 MHz using its internal PLL and supports a supply voltage range of 2.0 V to 3.6 V for both VDD (digital) and VDDA (analog) domains. The VREF+ input accepts 2.4–3.6 V for ADC/DAC reference scaling, and the device includes a programmable voltage detector (PVD) with eight selectable thresholds between 2.0 V and 2.9 V to guard against undervoltage conditions.

Does STM32F302K8U7 support USB device functionality without external components?

Yes - the STM32F302K8U7 integrates a full-speed USB 2.0 device interface with internal transceiver, requiring only external 1.5 kΩ pull-up resistor on PA12 (D+) for enumeration. No external PHY or level-shifting components are needed, and it supports standard USB classes including CDC, HID, and MSC via ST's USB library and HAL drivers.

How many analog peripherals are integrated, and what are their supply requirements?

The device integrates one 12-bit DAC (VDDA 2.4–3.6 V), three rail-to-rail comparators (VDDA 2.0–3.6 V), one fully accessible op-amp (VDDA 2.4–3.6 V), and one 12-bit ADC with 15 channels (VDDA 2.0–3.6 V, VREF+ 2.4–3.6 V). All analog blocks share the VDDA/VSSA supply domain and require independent filtering from VDD to minimize noise coupling.

Is STM32F302K8U7 pin-compatible with other members of the STM32F302x8 family?

Yes - the STM32F302K8U7 in UFQFPN32 is pin-compatible with STM32F302R8 (LQFP64) and STM32F302C8 (LQFP48) only in terms of peripheral function mapping, not physical pinout. Within the same UFQFPN32 package, it shares identical pin assignments with STM32F302K6 and STM32F303K8U7, enabling drop-in replacement where Flash size or analog feature count permits.