STMicroelectronics STM32F373C8T6TR

Overview

STM32F373C8T6TR 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, dual 12-bit DACs, three 16-bit sigma-delta ADCs, and integrated capacitive touch sensing-designed for precision analog signal acquisition and real-time control in industrial sensor nodes and smart metering front-ends.

For engineers reviewing the STM32F373C8T6TR datasheet, STM32F373C8T6TR pinout, STM32F373C8T6TR application, or STM32F373C8T6TR equivalent, key selection considerations include its dual ADC architecture (12-bit SAR + 16-bit SDADC), 5 V-tolerant I/O capability on 45 pins, CAN 2.0B interface, and LQFP48 package compatibility with space-constrained embedded designs.

Technical Context

The STM32F373C8T6TR integrates a single-core Cortex-M4 CPU with hardware floating-point unit and memory protection unit, enabling deterministic real-time execution of DSP-intensive algorithms such as motor control observers or harmonic analysis. Its clock system supports four oscillators (HSE, LSE, HSI, LSI) and a programmable PLL, allowing precise timing configuration for mixed-signal applications requiring synchronized analog sampling and digital processing.

It features two independent analog subsystems: one 12-bit SAR ADC (16 channels, 1 µs conversion) with dedicated 2.4–3.6 V analog supply, and three 16-bit sigma-delta ADCs supporting up to 21 single-ended or 11 differential inputs with 2.2–3.6 V analog rail-enabling simultaneous high-resolution current/voltage measurement and low-noise sensor conditioning without external precision converters.

Key Specifications

Pinout & Package

LQFP48 (7 × 7 mm, 0.5 mm pitch) package with exposed thermal pad - optimized for compact PCB layouts and moderate power dissipation in industrial control modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F303C8T6, the STM32F373C8T6TR provides superior metrology-grade analog performance at lower clock speed; versus STM32G431CBT6, it offers proven 5 V interface compatibility and simpler migration path from legacy F3 designs-making it optimal for cost-sensitive, analog-intensive industrial upgrades.

Availability

STM32F373C8T6TR is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, motor control interfaces, and appliance HMI panels requiring stable component supply across extended product lifecycles.

Supply support for STM32F373C8T6TR 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, and analog/mixed-signal ICs for industrial, automotive, and consumer markets.

The STM32F3 series targets cost-sensitive, analog-rich embedded applications-designed to integrate high-precision signal acquisition, real-time control, and human interface functions into a single chip for industrial automation and smart grid devices.

FAQ

What is the maximum operating frequency and supported voltage range?

The STM32F373C8T6TR operates at up to 72 MHz with a core supply voltage range of 2.0–3.6 V. Its analog section requires VDDA between 2.4–3.6 V for full 12-bit ADC/DAC accuracy and 2.2–3.6 V for SDADC operation. The device includes internal regulators and programmable voltage detectors to ensure reliable startup and brownout protection across this range.

Does it support hardware cryptographic acceleration?

No, the STM32F373C8T6TR does not include dedicated cryptographic accelerators (e.g., AES, SHA, PKA). It relies on software libraries for encryption tasks. For secure boot or OTA update authentication, developers must implement lightweight algorithms like HMAC-SHA256 in firmware using the Cortex-M4's efficient integer arithmetic and optional FPU for modular exponentiation optimization.

How many ADC channels can be used simultaneously with guaranteed timing alignment?

Up to four channels can be sampled simultaneously using the 12-bit SAR ADC's injected group with external trigger synchronization. The three SDADCs operate independently but share a common clock domain; their conversions can be aligned within ±1 sample period using the SDADC synchronization register (SDADCx_CR2[SYNCEN]), enabling coherent multi-channel current/voltage measurements in motor control applications.

Is the LQFP48 package RoHS-compliant and lead-free?

Yes, the STM32F373C8T6TR in LQFP48 packaging is RoHS-compliant and fully lead-free, meeting EU Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level MSL3. The device is qualified for reflow soldering per IPC/JEDEC J-STD-020, with peak temperature tolerance up to 260 °C for 30 seconds.