STMicroelectronics STM32F373CCT7

Overview

STM32F373CCT7 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 touch sensing-used in industrial sensor hubs and precision analog front-ends.

For engineers reviewing the STM32F373CCT7 datasheet, STM32F373CCT7 pinout, STM32F373CCT7 application, or STM32F373CCT7 equivalent, key selection criteria include its dual ADC architecture (12-bit SAR + 16-bit SDADC), 5 V-tolerant I/O count (up to 45), CAN 2.0B interface, USB 2.0 full-speed support, and RTC with calibration-all confirmed in ST's DocID022691 Rev 7 production datasheet.

Technical Context

The STM32F373CCT7 integrates an ARM Cortex-M4 core with hardware floating-point unit (FPU) and memory protection unit (MPU), enabling deterministic real-time control with DSP instruction support. Its analog subsystem combines a 12-bit 1 µs SAR ADC (16 channels) and three independent 16-bit sigma-delta ADCs (up to 21 single-ended inputs), each with dedicated analog supply rails (2.2–3.6 V for SDADC, 2.4–3.6 V for SAR).

Clock management includes four oscillators (4–32 MHz HSE, 32 kHz LSE, 8 MHz HSI with x16 PLL, 40 kHz LSI), supporting precise timing for RTC, USB, and CAN. Communication peripherals include two Fast Mode Plus I²C interfaces (1 Mbit/s, 20 mA sink), three USARTs with LIN/IrDA/ISO7816 support, three SPIs (18 Mbit/s), HDMI-CEC, CAN 2.0B, and USB 2.0 full-speed device interface.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm) package with exposed thermal pad; 64-pin quad flat pack suitable for automated assembly and moderate-power analog-digital integration.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F373CCT7, the STM32F303RCT7 trades SDADC capability for integrated op-amps-ideal for active filter design-while the STM32G474RET6 offers superior resolution and speed but abandons 5 V tolerance and requires board layout changes.

Availability

STM32F373CCT7 is available at Aetrix Electronics and suitable for industrial sensor hubs, medical vital sign monitors, smart energy meters, and HVAC control panels requiring stable component supply throughout product lifecycles.

Supply support for STM32F373CCT7 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 unify high-precision measurement, real-time control, and human interface functionality in a single chip for industrial and medical edge devices.

FAQ

What is the maximum operating frequency and supported voltage range of the STM32F373CCT7?

The STM32F373CCT7 operates at up to 72 MHz and supports a supply voltage range of 2.0 V to 3.6 V for both VDD and VDDA. Its internal regulators and voltage detector (PVD) ensure reliable operation across this range, with validated performance in all low-power modes down to 2.0 V. The 72 MHz clock is derived from the PLL fed by the HSI or HSE oscillator.

Does the STM32F373CCT7 support USB device functionality without external components?

Yes-the STM32F373CCT7 integrates a full-speed USB 2.0 device interface with an internal transceiver, requiring only a standard USB Type-A connector and optional ESD protection diodes. No external PHY, pull-up resistors, or crystal are needed, as the USB clock is derived from the internal PLL and the D+/D− lines (PA11/PA12) meet USB electrical specifications per ST's characterization in DocID022691 Rev 7.

How many analog-to-digital converters does the STM32F373CCT7 include, and what are their key distinctions?

The STM32F373CCT7 includes four ADC subsystems: one 12-bit SAR ADC (16 channels, 1 µs conversion) and three independent 16-bit sigma-delta ADCs (totaling up to 21 single-ended or 11 differential channels). The SAR ADC targets fast transient capture, while the SDADCs provide high-resolution, low-noise measurement with built-in decimation filters-each with separate analog supply rails (2.4–3.6 V for SAR, 2.2–3.6 V for SDADC) for optimal noise separation.

Is the STM32F373CCT7 pin-compatible with other STM32F373xx variants in the same package?

Yes-within the LQFP64 package variant, the STM32F373CCT7 shares identical pinout and electrical characteristics with other members of the STM32F373xx family (e.g., STM32F373CBT7, STM32F373C8T6), differing only in Flash size (256 KB vs. 64 KB) and SRAM configuration. Pin definitions, alternate functions, and peripheral mappings are fully consistent across these LQFP64 derivatives per ST's official pinout table (Section 4, DocID022691 Rev 7).