STMicroelectronics STM32F373VBT7

Overview

STM32F373VBT7 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, four 12-/16-bit ADCs, 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 STM32F373VBT7 datasheet, STM32F373VBT7 pinout, STM32F373VBT7 application, or STM32F373VBT7 equivalent, key selection considerations include its dual ADC architecture (12-bit SAR + 16-bit Sigma-Delta), CAN 2.0B interface, USB 2.0 full-speed support, and 5 V-tolerant I/O capability across 45 pins-critical for mixed-voltage industrial HMI and power conversion systems.

Technical Context

The STM32F373VBT7 integrates a single-core Cortex-M4 with hardware floating-point unit and memory protection unit, enabling deterministic real-time control with DSP extensions for filtering and motor algorithms. Its analog subsystem combines a 12-bit 1 µs SAR ADC (16 channels) and three independent 16-bit Sigma-Delta ADCs (up to 21 single-ended inputs), each with dedicated analog supplies (2.4–3.6 V and 2.2–3.6 V respectively).

Clock management includes four oscillators (4–32 MHz HSE, 32 kHz LSE, 8 MHz HSI with PLL, 40 kHz LSI), supporting precise RTC calibration and low-power Stop/Standby wake-up. Communication peripherals include CAN 2.0B, three USARTs with LIN/IrDA, three SPIs (18 Mbit/s), two Fast Mode Plus I²Cs, HDMI-CEC, and USB 2.0 full-speed-configured via flexible remappable GPIOs and 12-channel DMA.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm) package with exposed thermal pad; 64-pin quad flat pack optimized for manual soldering and automated assembly in space-constrained industrial PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F373VBT7, the STM32F303VCT6 trades Sigma-Delta ADC capability for lower cost in standard motor control, while the STM32G474RET6 delivers superior compute and analog density at the expense of legacy toolchain compatibility-making the F373 optimal for established high-precision analog acquisition designs.

Availability

STM32F373VBT7 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, human-machine interface (HMI), and portable medical sensor nodes requiring stable component supply and long-term manufacturing continuity.

Supply support for STM32F373VBT7 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, specializing in microcontrollers, power management, and analog/mixed-signal ICs for industrial, automotive, and consumer markets.

The STM32F3 series targets cost-sensitive, analog-intensive applications-designed to unify high-precision signal acquisition, real-time control, and connectivity in a single chip for factory automation and smart infrastructure.

FAQ

What is the maximum operating frequency and core type of the STM32F373VBT7?

The STM32F373VBT7 features an ARM Cortex-M4 core with floating-point unit (FPU) and memory protection unit (MPU), running at a maximum frequency of 72 MHz. It achieves 1.25 DMIPS/MHz (Dhrystone 2.1), supporting real-time signal processing and deterministic control loops. The FPU accelerates trigonometric and filter computations essential for motor control and sensor fusion.

Does the STM32F373VBT7 support 5 V tolerant I/Os, and how many pins have this capability?

Yes, the STM32F373VBT7 supports 5 V tolerant I/Os on up to 45 pins across its GPIO ports (PA–PF). This allows direct connection to 5 V logic, sensors, and industrial I/O standards without external level-shifting circuitry-reducing BOM cost and board area in mixed-voltage systems such as PLC modules and HMI panels.

What analog peripherals are integrated, and how do they differ in use case?

The device integrates one 12-bit SAR ADC (16 channels, 1 µs conversion) for fast, general-purpose sampling, and three independent 16-bit Sigma-Delta ADCs (up to 21 single-ended channels) optimized for high-resolution, low-noise measurements like energy metering. The SAR ADC suits motor current sensing; the SDADCs target voltage, temperature, or strain gauge readings where resolution and noise immunity outweigh speed.

Is the STM32F373VBT7 pin-compatible with other STM32F3 devices in the same package?

Yes, the STM32F373VBT7 in LQFP64 is pin-compatible with other STM32F373xx variants (e.g., STM32F373CBT6) and shares the same pin definitions and alternate function mapping per the official datasheet. However, it is not pin-compatible with STM32F303 or STM32G4 series devices-even in identical packages-due to differences in peripheral assignment and register layout.