STMicroelectronics STM32F373VCT6

Overview

STM32F373VCT6 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, four 12-/16-bit ADCs (including three sigma-delta), three 12-bit DACs, two rail-to-rail comparators, and integrated capacitive sensing-designed for precision analog signal acquisition in industrial sensor nodes and motor control feedback loops.

For engineers reviewing the STM32F373VCT6 datasheet, STM32F373VCT6 pinout, STM32F373VCT6 application, or STM32F373VCT6 equivalent, key selection considerations include its dual ADC architecture (12-bit SAR + 16-bit sigma-delta), 5 V-tolerant I/O capability on 45 pins, CAN 2.0B interface, USB 2.0 full-speed support, and RTC with alarm/wakeup from Stop/Standby modes.

Technical Context

The STM32F373VCT6 integrates an ARM Cortex-M4 core with single-cycle MAC, hardware division, and IEEE-754-compliant FPU for real-time DSP tasks. Its memory subsystem includes 256 KB of embedded Flash with error correction and 32 KB SRAM with parity checking-enabling robust operation in safety-critical analog-digital hybrid systems.

Its analog subsystem features three independent 16-bit sigma-delta ADCs (up to 21 single-ended channels), one 12-bit SAR ADC (16-channel, 1 µs conversion), three 12-bit DACs, and two fast comparators with programmable hysteresis-supporting simultaneous high-resolution measurement and closed-loop analog output generation without external components.

Key Specifications

Pinout & Package

LQFP100 (14 × 14 mm, 0.5 mm pitch) package with 100 leads; 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 STM32F303VCT6, the STM32F373VCT6 provides unique sigma-delta ADC capability essential for metrology-grade sensing; versus STM32G474RET6, it trades raw speed and crypto features for dedicated high-precision analog acquisition-making it irreplaceable in applications demanding >16-bit effective resolution at sub-kHz bandwidths.

Availability

STM32F373VCT6 is available at Aetrix Electronics and suitable for industrial sensor hubs, motor control feedback units, smart energy meters, and medical diagnostic interfaces requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.

Supply support for STM32F373VCT6 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, analog ICs, and MEMS sensors-with over 40 years of automotive- and industrial-grade product development experience.

The STM32F3 series targets cost-sensitive, analog-intensive embedded applications-combining high-resolution sigma-delta converters, capacitive touch, and real-time control peripherals in a single Cortex-M4 platform optimized for sensor fusion and precision measurement.

FAQ

What is the maximum operating frequency and supported voltage range?

The STM32F373VCT6 operates at up to 72 MHz with a supply voltage range of 2.0 V to 3.6 V. Its internal voltage regulator supports stable core operation across this range, and the analog domain (VDDA) accepts 2.2–3.6 V for optimal ADC/DAC performance. The device includes a programmable voltage detector (PVD) to monitor VDD and trigger interrupts before brown-out conditions occur.

Does it support hardware-accelerated capacitive touch sensing?

Yes-the STM32F373VCT6 integrates a dedicated Touch Sensing Controller (TSC) supporting up to 24 capacitive sensing channels with built-in charge transfer, spread-spectrum modulation, and noise immunity features. It requires no external components and delivers robust touch detection even in noisy industrial environments, with hardware-accelerated acquisition freeing the CPU for other tasks.

How many ADCs does it have, and what are their key differences?

It includes four ADC subsystems: one 12-bit SAR ADC (16 channels, 1 µs conversion) for fast, medium-precision sampling; and three independent 16-bit sigma-delta ADCs (up to 21 single-ended or 11 differential channels) optimized for high-resolution, low-noise DC and low-frequency AC measurements. Each SDADC has configurable oversampling ratios and digital filtering-enabling >100 dB SNR without external components.

Is USB 2.0 full-speed functionality self-contained?

Yes-the STM32F373VCT6 integrates a USB 2.0 full-speed PHY and controller compliant with USB specification revision 2.0. It supports device mode only, with dedicated DP/DM pins, internal pull-up resistors, and descriptors handled in firmware. No external transceiver or crystal is required, as the USB clock is derived from the internal PLL (48 MHz output).