STMicroelectronics STM32F373CCT6

Overview

STM32F373CCT6 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, dual ADC architectures (one 12-bit SAR + three 16-bit Sigma-Delta), three 12-bit DACs, two rail-to-rail comparators, and integrated capacitive sensing for human-machine interface applications in industrial control panels.

For engineers reviewing the STM32F373CCT6 datasheet, STM32F373CCT6 pinout, STM32F373CCT6 application, or STM32F373CCT6 equivalent, key selection considerations include its mixed-signal capability (simultaneous high-resolution analog acquisition and real-time DSP), CAN 2.0B interface for fieldbus connectivity, USB 2.0 full-speed support for device-class peripherals, and 5 V-tolerant I/Os enabling direct interfacing with legacy logic.

Technical Context

The STM32F373CCT6 integrates a single-core Cortex-M4 CPU with hardware floating-point unit and memory protection unit, supporting deterministic real-time execution of signal processing algorithms. Its analog subsystem includes one 12-bit 1.0 µs SAR ADC (up to 16 channels) and three independent 16-bit Sigma-Delta ADCs-each with configurable oversampling and digital filtering-enabling simultaneous precision measurement of multiple sensor types (e.g., current, voltage, temperature).

Clock management combines four oscillator sources (HSE 4–32 MHz, LSE 32.768 kHz, HSI 8 MHz with PLL, LSI 40 kHz) and programmable prescalers to feed multiple domain clocks. Peripheral routing uses flexible alternate function mapping across 84 GPIOs, with up to 45 pins supporting 5 V tolerance and all capable of external interrupt generation.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 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 STM32F303RCT6, the STM32F373CCT6 adds dedicated sigma-delta conversion and touch sensing-critical for metering and HMI-but trades off some digital compute headroom; versus STM32G474RET6, it prioritizes analog precision over raw speed and security features, making it optimal for applications anchored in high-fidelity sensing rather than cryptography or ultra-fast control.

Availability

STM32F373CCT6 is available at Aetrix Electronics and suitable for industrial motor drives, smart energy meters, human-machine interface panels, and portable medical sensor hubs requiring stable component supply across long-lifecycle deployments.

Supply support for STM32F373CCT6 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 management ICs, sensors, and automotive semiconductors since 1987.

The STM32F3 series targets cost-sensitive, analog-intensive applications requiring high-resolution signal acquisition and real-time processing-designed specifically for industrial control, metering, and HMI where mixed-signal integration reduces system complexity and improves measurement fidelity.

FAQ

What is the maximum operating frequency and supported voltage range for the STM32F373CCT6?

The STM32F373CCT6 operates at up to 72 MHz with a supply voltage range of 2.0 V to 3.6 V for VDD and VDDA. It supports dynamic voltage scaling and low-power modes down to 1.3 µA in Standby with RTC active. The core voltage is internally regulated, and the device meets industrial temperature specifications (–40°C to +85°C) across this full voltage range.

Does the STM32F373CCT6 support USB device functionality without external components?

Yes-the STM32F373CCT6 integrates a full-speed USB 2.0 device transceiver with internal pull-up resistors and voltage regulators. It requires only a standard USB Type-A connector and appropriate PCB layout (differential pair impedance control, ESD protection diodes recommended but not mandatory) to implement CDC, HID, or MSC class devices without external PHY or level shifters.

How many analog-to-digital converter types does the STM32F373CCT6 integrate, and what are their key distinctions?

The device integrates two distinct ADC subsystems: one 12-bit SAR ADC (16-channel, 1.0 µs conversion time) optimized for fast transient capture, and three independent 16-bit Sigma-Delta ADCs supporting up to 21 single-ended or 11 differential channels with programmable oversampling and digital filtering-ideal for high-resolution DC/low-frequency measurements like current sensing or temperature monitoring.

Is the STM32F373CCT6 pin-compatible with other STM32F3xx variants in the LQFP64 package?

Yes-within the STM32F373xx subfamily (e.g., STM32F373CBT6, STM32F373C8T6), the LQFP64 variant maintains identical pinout and electrical characteristics. However, it is not pin-compatible with STM32F303xx or STM32G4xx LQFP64 parts due to differences in peripheral assignment, register mapping, and analog subsystem configuration-even when sharing identical package footprints.