STMicroelectronics STM32F302C6T6

Overview

STM32F302C6T6 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 mixed-signal control applications such as motor drive feedback loops and sensor signal conditioning.

For engineers reviewing the STM32F302C6T6 datasheet, STM32F302C6T6 pinout, STM32F302C6T6 application, or STM32F302C6T6 equivalent, key selection criteria include analog peripheral supply ranges (VDDA = 2.0–3.6 V), 72 MHz CPU clock capability, 51 GPIOs with interrupt mapping, and LQFP48 package compatibility for space-constrained industrial control boards.

Technical Context

The device integrates an Arm 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 12-bit DAC with 2.4–3.6 V analog supply, three ultra-fast comparators, and an op-amp configurable as a PGA-each with independent analog supply domains.

Peripherals are interconnected via a dedicated matrix allowing concurrent access to ADC, timers, and communication interfaces without bus contention. The 9-timer suite includes one 32-bit general-purpose timer with quadrature encoder input and one 16-bit advanced-control timer supporting deadtime generation for 3-phase inverter gate driving.

Key Specifications

Pinout & Package

LQFP48 (7 × 7 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, industrial temperature range (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F302C6T6, the STM32F303C6T6 trades USB for higher analog precision and flash capacity, while the STM32G431CBT6 delivers significantly higher performance and analog density at the cost of CAN and broader ecosystem maturity.

Availability

STM32F302C6T6 is available at Aetrix Electronics and suitable for motor control systems, industrial sensor transmitters, energy metering interfaces, and capacitive-touch HMIs requiring stable component supply and long-term industrial lifecycle support.

Supply support for STM32F302C6T6 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, Switzerland, specializing in microcontrollers, power management, sensors, and automotive ICs.

The STM32F3 series is designed for cost-sensitive, analog-intensive embedded applications-emphasizing integrated op-amps, comparators, and capacitive touch-targeting industrial automation, appliance control, and digital power conversion.

FAQ

What is the maximum operating frequency of the STM32F302C6T6?

The STM32F302C6T6 features an Arm Cortex-M4 core with FPU running at up to 72 MHz, achieved using the internal PLL with HSE (4–32 MHz) or HSI (8 MHz) as source. This frequency is validated across the full industrial temperature range (–40°C to +85°C) and 2.0–3.6 V supply.

Does the STM32F302C6T6 support USB device functionality without external components?

Yes-the STM32F302C6T6 integrates a full-speed USB 2.0 device interface with internal transceiver and pull-up resistor control. Only a single 1.5 kΩ pull-up on PA12 (D+) is required for enumeration; no external PHY or level-shifting components are needed for basic HID or CDC implementations.

How many analog comparators does the STM32F302C6T6 include, and what are their key electrical specs?

The device includes three rail-to-rail ultra-fast comparators, each with propagation delay < 120 ns (typical at 25°C), input offset voltage ±1.5 mV (max), and supply range matching VDDA (2.0–3.6 V). They support window mode, wake-up from low-power modes, and can drive timers directly for event-triggered actions.

Can the integrated op-amp operate independently of the main digital supply?

Yes-the op-amp uses the VDDA analog supply (2.4–3.6 V) and shares its ground with VSSA, fully isolated from the digital VDD/VSS domain. This separation ensures analog signal integrity and prevents digital switching noise from degrading op-amp performance, especially in PGA configurations.