STMicroelectronics STM32F373VBH6

Overview

STM32F373VBH6 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 with hardware parity, four 12-/16-bit ADCs, three 12-bit DACs, two rail-to-rail comparators, and integrated capacitive sensing for human-machine interface applications in industrial control and medical instrumentation.

For engineers reviewing the STM32F373VBH6 datasheet, STM32F373VBH6 pinout, STM32F373VBH6 application, or STM32F373VBH6 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 system integration and precision analog signal acquisition.

Technical Context

The STM32F373VBH6 integrates a single-core ARM Cortex-M4 CPU with hardware floating-point unit (FPU) and memory protection unit (MPU), enabling deterministic real-time control and secure firmware partitioning. Its analog subsystem combines one high-speed 12-bit SAR ADC (1 µs conversion, 16-channel) and three 16-bit sigma-delta ADCs (up to 21 single-ended channels), each with independent analog supply domains (2.4–3.6 V and 2.2–3.6 V respectively).

Clock management includes four oscillator sources: 4–32 MHz HSE, 32 kHz LSE for RTC, 8 MHz HSI with x16 PLL, and 40 kHz LSI. Peripheral routing supports simultaneous operation of USB, CAN, three USARTs, three SPIs, two I²Cs (Fast Mode Plus), HDMI-CEC, and a calendar RTC with alarm and wakeup from Stop/Standby modes.

Key Specifications

Pinout & Package

STM32F373VBH6 is housed in a UFBGA100 (7 × 7 mm, 0.5 mm pitch) package with 100 terminals. Pin functions are defined per STM32F373xx datasheet Section 4 ("Pinouts and pin description") and validated against Table 11 (pin definitions) and alternate function tables (PA–PF).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F303VCT6 and STM32F407VGT6, the STM32F373VBH6 uniquely balances high-resolution analog acquisition (16-bit SDADC), capacitive touch, and industrial connectivity (CAN+USB) in a compact UFBGA100 footprint - making it optimal for cost-sensitive, analog-intensive embedded systems where mixed-signal integration reduces BOM count.

Availability

STM32F373VBH6 is available at Aetrix Electronics and suitable for industrial motor control, medical sensor hubs, smart energy metering, and automotive body control modules requiring stable component supply, long-term lifecycle assurance, and qualified production-grade silicon.

Supply support for STM32F373VBH6 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 analog devices for industrial, automotive, and consumer markets.

The STM32F3 series targets cost-sensitive, analog-rich embedded applications - emphasizing integrated high-precision ADCs, DACs, comparators, and capacitive sensing to replace discrete signal-chain components in industrial and medical equipment.

FAQ

What is the maximum operating frequency and core type of the STM32F373VBH6?

The STM32F373VBH6 features an ARM Cortex-M4 core with hardware FPU and MPU, operating 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 execution of motor control algorithms, digital filtering, and real-time signal processing without external coprocessors.

Does the STM32F373VBH6 support 5 V tolerant I/Os, and how many pins have this capability?

Yes, the STM32F373VBH6 supports 5 V tolerant I/Os on up to 45 pins, as confirmed in the datasheet Section 3.9 and electrical characteristics Table 52. This capability allows direct interfacing with legacy 5 V logic, sensors, and actuators without external level-shifting circuitry - reducing BOM cost and PCB area in mixed-voltage industrial designs.

What analog peripherals are integrated into the STM32F373VBH6, and how do they differ in resolution and use case?

The device integrates one 12-bit SAR ADC (1 µs conversion, 16 channels) for fast transient measurements and three 16-bit sigma-delta ADCs (up to 21 single-ended channels) for high-precision, low-noise DC/low-frequency acquisition. The SAR ADC uses VDDA (2.4–3.6 V), while SDADCs use a separate SVDDA (2.2–3.6 V) - enabling simultaneous high-speed and high-resolution sensing in applications like motor current + winding temperature monitoring.

Is the STM32F373VBH6 pin-compatible with other STM32F373xx variants, and what package options exist?

The STM32F373VBH6 uses the UFBGA100 package (7 × 7 mm, 0.5 mm pitch) and shares the same pinout as other STM32F373xx devices in that package variant (e.g., STM32F373VBT6). Other package options include LQFP100, LQFP64, and LQFP48 - but pin compatibility is limited to identical packages; cross-package migration requires PCB redesign due to differing pin counts and layouts.