STMicroelectronics STM32F373RCT6TR

Overview

STM32F373RCT6TR 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 and one 12-bit SAR), 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 STM32F373RCT6TR datasheet, STM32F373RCT6TR pinout, STM32F373RCT6TR application, or STM32F373RCT6TR equivalent, key selection considerations include its dual ADC architecture (12-bit SAR + 16-bit SDADC), CAN 2.0B interface, USB 2.0 full-speed support, and 5 V-tolerant I/O capability across 45 pins.

Technical Context

The device integrates an ARM Cortex-M4 core with hardware floating-point unit and memory protection unit, enabling deterministic real-time processing of mixed-signal workloads. Its analog subsystem combines a high-speed 12-bit SAR ADC (1 µs conversion) with three independent 16-bit sigma-delta ADCs supporting up to 21 single-ended or 11 differential channels-each with dedicated analog supply rails (2.2–3.6 V).

Clock management includes dual oscillators (4–32 MHz HSE and 32 kHz LSE), internal 8 MHz RC with x16 PLL, and 40 kHz LSI; power management supports Sleep, Stop, and Standby modes with VBAT backup for RTC and registers, plus programmable voltage detector (PVD) for supply monitoring.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm) 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 microcontroller applications.

Compared with STM32F303RCT6, the STM32F373RCT6TR adds critical sigma-delta ADC capability for precision metrology; versus STM32G474RET6, it retains legacy SDADC compatibility while trading peak CPU speed for proven analog subsystem maturity in established industrial platforms.

Availability

STM32F373RCT6TR is available at Aetrix Electronics and suitable for industrial motor control, energy metering, medical sensor hubs, and smart building HVAC controllers requiring stable component supply across long-lifecycle deployments.

Supply support for STM32F373RCT6TR 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 ICs, sensors, and analog products for industrial, automotive, and consumer markets.

The STM32F3 series targets mixed-signal applications demanding high analog integration alongside real-time control-specifically engineered for cost-sensitive industrial and metering systems requiring precision ADCs, DACs, and capacitive touch without sacrificing MCU performance.

FAQ

What is the maximum operating frequency and core type of the STM32F373RCT6TR?

The STM32F373RCT6TR features an ARM Cortex-M4 core with hardware FPU and MPU, operating at a maximum frequency of 72 MHz. It delivers 1.25 DMIPS/MHz (Dhrystone 2.1) and supports single-cycle multiplication and hardware division-enabling efficient execution of DSP algorithms and real-time control tasks in resource-constrained environments.

Does the STM32F373RCT6TR support 5 V tolerant I/Os, and how many pins have this capability?

Yes, the STM32F373RCT6TR supports 5 V tolerant I/Os on up to 45 pins across its GPIO ports (PA–PF). This capability allows direct interfacing with 5 V logic peripherals and sensors without external level-shifting circuitry-reducing BOM cost and board space in industrial and legacy-system designs.

What types of analog-to-digital converters are integrated, and what are their key resolution and channel configurations?

The device integrates two distinct ADC subsystems: one 12-bit SAR ADC with 16 input channels and 1 µs conversion time, and three independent 16-bit sigma-delta ADCs supporting up to 21 single-ended or 11 differential channels each. Each SDADC has a dedicated analog supply range (2.2–3.6 V) and built-in digital filtering for high-SNR measurements in noisy environments.

Is USB and CAN functionality available on dedicated pins, and what protocol versions do they support?

Yes, the STM32F373RCT6TR includes dedicated USB_DP/USB_DM pins supporting USB 2.0 full-speed (12 Mbit/s) with integrated transceiver and internal termination. It also provides dedicated CAN_RX/CAN_TX pins compliant with CAN 2.0B Active specification-enabling robust, noise-immune fieldbus communication in automotive and industrial networks without external transceivers.