STMicroelectronics STM32F373V8H6

Overview

STM32F373V8H6 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 ADCs (including three 16-bit Sigma-Delta), three 12-bit DACs, two rail-to-rail comparators, and integrated capacitive sensing-used in precision analog signal acquisition and motor control systems.

For engineers reviewing the STM32F373V8H6 datasheet, STM32F373V8H6 pinout, STM32F373V8H6 application, or STM32F373V8H6 equivalent, key selection criteria include mixed-signal integration capability, 5 V-tolerant I/O count (up to 45), CAN 2.0B interface support, USB 2.0 full-speed connectivity, and dual-voltage analog supply domains for high-precision sensor interfacing.

Technical Context

The STM32F373V8H6 implements a tightly coupled Cortex-M4 core with hardware floating-point unit and memory protection unit, enabling deterministic real-time DSP operations and secure memory partitioning. Its analog subsystem includes independent 2.2–3.6 V and 2.4–3.6 V supply domains for SDADC and SAR ADC respectively, ensuring noise isolation between high-resolution sigma-delta conversion and fast sampling.

It integrates a 17-timer architecture including two 32-bit general-purpose timers, four basic 16-bit timers for DAC triggering, and independent/system watchdogs-coordinated via a centralized APB bus matrix and 12-channel DMA controller supporting peripheral-to-memory and memory-to-memory transfers without CPU intervention.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm) package with exposed thermal pad; 64-pin quad flat pack optimized for compact industrial PCB layouts and thermal dissipation in motor control modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F373V8H6, the STM32F303VCT6 trades SDADC capability for larger SRAM and lower cost, while the STM32G474RET6 prioritizes CPU performance and SAR speed over delta-sigma precision-making the F373 uniquely suited for applications demanding both high-resolution analog capture and embedded signal processing.

Availability

STM32F373V8H6 is available at Aetrix Electronics and suitable for industrial motor control, medical sensor hubs, smart energy metering, and HMI touch panel controllers requiring stable component supply across extended production lifecycles.

Supply support for STM32F373V8H6 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-grade components since 1987.

The STM32F3 series targets cost-sensitive, analog-intensive applications-combining high-precision mixed-signal peripherals with Cortex-M4 performance for industrial automation, medical devices, and consumer appliances.

FAQ

What is the maximum operating frequency and core type of the STM32F373V8H6?

The STM32F373V8H6 features an ARM Cortex-M4 core with hardware FPU and MPU, rated for a maximum operating frequency of 72 MHz. It achieves 1.25 DMIPS/MHz (Dhrystone 2.1) and supports single-cycle multiplication and hardware division. This frequency is sustained under full voltage range (2.0–3.6 V) and ambient temperatures up to 85 °C, as validated in ST's production data sheet DocID022691 Rev 7.

Does the STM32F373V8H6 support USB device functionality without external components?

Yes, the STM32F373V8H6 integrates a full-speed USB 2.0 device interface with an on-chip transceiver. Pins PA11 (DM) and PA12 (DP) provide direct connection to a USB connector; no external PHY or level-shifting components are required. The peripheral supports CDC, HID, and MSC class drivers and includes dedicated USB-specific interrupts and descriptor handling in ROM-based bootloader.

How many analog-to-digital converters does the STM32F373V8H6 include, and what are their key distinctions?

The STM32F373V8H6 integrates four ADC subsystems: one 12-bit SAR ADC (1 µs conversion, up to 16 channels) and three independent 16-bit Sigma-Delta ADCs (up to 21 single-ended or 11 differential channels). The SAR ADC uses the VDDA supply (2.4–3.6 V), while SDADCs operate on a separate 2.2–3.6 V analog domain-enabling simultaneous high-speed and ultra-low-noise acquisition with inherent noise rejection.

Is the STM32F373V8H6 pin-compatible with other members of the STM32F373xx family?

Yes, the STM32F373V8H6 in LQFP64 is pin-compatible with other V8 variants (e.g., STM32F373V8T6) and shares identical pin definitions and electrical characteristics per Table 11 of DocID022691 Rev 7. However, it is not pin-compatible with LQFP48, LQFP100, or UFBGA100 variants due to differing pin counts and package-specific signal allocations.