STMicroelectronics STM32F373R8T6

Overview

STM32F373R8T6 from STMicroelectronics is a 32-bit ARM® Cortex®-M4 microcontroller with FPU and MPU, operating up to 72 MHz, featuring 64 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-used in industrial sensor fusion and precision analog front-end control systems.

For engineers reviewing the STM32F373R8T6 datasheet, STM32F373R8T6 pinout, STM32F373R8T6 application, or STM32F373R8T6 equivalent, key selection considerations include its dual ADC architecture (SAR + Sigma-Delta), CAN 2.0B interface, USB Full-Speed support, and 5 V-tolerant I/O capability across 45 pins.

Technical Context

The STM32F373R8T6 integrates an ARM Cortex-M4 core with single-cycle MAC and hardware floating-point unit (FPU), enabling real-time signal processing for mixed-signal applications. Its memory subsystem includes 64 KB of embedded Flash with error correction and 32 KB SRAM with parity checking for safety-critical operation.

It features a hybrid analog subsystem: one 12-bit SAR ADC (16 channels, 1 µs conversion), three 16-bit sigma-delta ADCs (up to 21 single-ended channels), three 12-bit DACs, and two fast comparators with programmable hysteresis-designed for high-resolution sensor conditioning and closed-loop analog control.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm) package with exposed thermal pad; 64-pin quad flat pack suitable for automated assembly and thermal management in compact industrial modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F373R8T6, the STM32F303RCT6 trades sigma-delta ADC capability for integrated op-amps and larger Flash, while the STM32G474RET6 delivers higher SDADC resolution and memory but removes 5 V tolerance-making the R8T6 uniquely balanced for cost-sensitive, mixed-voltage industrial measurement systems.

Availability

STM32F373R8T6 is available at Aetrix Electronics and suitable for industrial sensor nodes, motor control interfaces, smart energy meter front-ends, and medical diagnostic signal conditioners requiring stable component supply and long-term manufacturability.

Supply support for STM32F373R8T6 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, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.

The STM32F3 series targets cost-sensitive, analog-intensive applications-combining high-precision mixed-signal peripherals with Cortex-M4 performance for sensor hubs, digital power supplies, and human-machine interfaces.

FAQ

What is the maximum operating frequency and core type of the STM32F373R8T6?

The STM32F373R8T6 uses an ARM Cortex-M4 core with FPU and operates at a maximum frequency of 72 MHz. It achieves 1.25 DMIPS/MHz (Dhrystone 2.1) and supports single-cycle multiplication and hardware division-enabling efficient real-time signal processing for industrial control and sensor fusion tasks.

Does the STM32F373R8T6 support USB and CAN interfaces simultaneously?

Yes, the STM32F373R8T6 integrates both USB 2.0 Full-Speed and CAN 2.0B Active interfaces on-chip. They operate independently with dedicated controllers and DMA channels, allowing concurrent use-for example, USB for configuration/debug and CAN for fieldbus communication in industrial gateways.

How many analog-to-digital converters does the STM32F373R8T6 include, and what are their key distinctions?

The device includes four ADC subsystems: one 12-bit SAR ADC (16 channels, 1 µs conversion) and three 16-bit sigma-delta ADCs (up to 21 single-ended channels). The SAR ADC delivers speed for control loops; the SDADCs provide high resolution and noise rejection for precision metrology-each with separate analog supply domains (VDDA: 2.4–3.6 V for SAR; 2.2–3.6 V for SDADC).

What packaging and pin count does the STM32F373R8T6 use, and is it RoHS compliant?

The STM32F373R8T6 is supplied in an LQFP64 package (10 × 10 mm, 0.5 mm pitch) with exposed thermal pad. It is RoHS-compliant and halogen-free per STMicroelectronics' ECOPACK® specifications, meeting industrial environmental standards for lead-free assembly and long-term reliability.