STMicroelectronics STM32F378CCT6

Overview

STM32F378CCT6 from STMicroelectronics is a 32-bit ARM® Cortex®-M4 microcontroller with FPU and MPU, operating up to 72 MHz, featuring 256 KB Flash, 32 KB SRAM with hardware parity, three 12-bit DACs, four ADCs (including three 16-bit sigma-delta), and dual rail-to-rail analog comparators. It targets precision analog signal acquisition and real-time control in industrial sensor nodes and motor control interfaces.

For engineers reviewing the STM32F378CCT6 datasheet, STM32F378CCT6 pinout, STM32F378CCT6 application, or STM32F378CCT6 equivalent, key selection criteria include its integrated sigma-delta ADC channels for high-resolution current sensing, 5 V-tolerant I/O capability on up to 45 pins, CAN 2.0B interface for industrial fieldbus connectivity, and capacitive touch sensing support across 24 channels.

Technical Context

The STM32F378CCT6 implements a tightly coupled Cortex-M4 core with single-cycle multiply and hardware divide, augmented by a floating-point unit for deterministic DSP operations and a memory protection unit for secure task isolation. Its analog subsystem integrates dedicated voltage domains (VDDA: 1.65–3.6 V; VREFSD+: 2.2–3.6 V) enabling simultaneous high-precision sigma-delta conversion and SAR sampling without cross-domain interference.

Clock architecture includes dual oscillators (4–32 MHz HSE + 32 kHz LSE), internal RC sources (8 MHz HSI, 40 kHz LSI), and a programmable PLL supporting dynamic frequency scaling. Peripheral routing leverages flexible alternate function mapping across six GPIO ports, with DMA channel arbitration ensuring low-latency ADC/DAC data transfers independent of CPU load.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; 64-pin quad flat configuration optimized for manual assembly and thermal management in space-constrained industrial modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F303CCT6, the STM32F378CCT6 adds critical sigma-delta ADC capability for precision current sensing; versus STM32G474RET6, it offers mature qualification and proven field reliability but lacks newer power efficiency and ADC speed enhancements.

Availability

STM32F378CCT6 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, medical sensor hubs, and PLC I/O modules requiring stable component supply across multi-year production cycles.

Supply support for STM32F378CCT6 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, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.

The STM32F3 series targets cost-sensitive, analog-intensive embedded applications-specifically engineered to integrate high-precision sigma-delta converters, op-amps, and comparators alongside a Cortex-M4 core for sensor fusion and real-time control.

FAQ

What is the maximum operating temperature range for STM32F378CCT6?

The STM32F378CCT6 is rated for industrial temperature range: –40 °C to +85 °C ambient. This specification is validated per ST's qualification standards (AEC-Q100 not applicable; industrial-grade stress testing performed). Thermal derating begins above 85 °C ambient, and junction temperature must remain below 125 °C under all operating conditions.

Does STM32F378CCT6 support USB device functionality?

Yes, the STM32F378CCT6 includes a full-speed USB 2.0 device interface (12 Mbit/s) with integrated PHY and descriptors. Pins PA11 (D−) and PA12 (D+) are dedicated for USB signaling. The device supports CDC, HID, and MSC classes via ST's USB library, and requires no external transceiver for standard USB cable connections.

How many independent clock sources does STM32F378CCT6 provide?

The STM32F378CCT6 integrates four independent clock sources: 4–32 MHz high-speed external crystal (HSE), 32.768 kHz low-speed external crystal (LSE), 8 MHz internal RC oscillator (HSI), and 40 kHz internal RC oscillator (LSI). All can feed the PLL or serve as system clock sources, enabling flexible low-power and high-accuracy timing configurations.

Can the sigma-delta ADCs operate simultaneously with the SAR ADC?

Yes, the three 16-bit sigma-delta ADCs and the single 12-bit SAR ADC operate independently with separate clock domains and analog supplies (VREFSD+ vs. VDDA). They can be triggered synchronously via timer events or run asynchronously, enabling concurrent high-resolution current sensing and fast voltage sampling without resource contention.