STMicroelectronics STM32F072R8T6

Overview

STM32F072R8T6 from STMicroelectronics is a 32-bit Arm® Cortex®-M0 microcontroller with 64 KB Flash, 16 KB SRAM, crystal-less USB 2.0 FS interface, CAN 2.0B controller, and integrated 12-bit ADC/DAC-designed for embedded industrial control, USB-connected sensor hubs, and low-power human-machine interface (HMI) systems.

For engineers reviewing the STM32F072R8T6 datasheet, STM32F072R8T6 pinout, STM32F072R8T6 application, or STM32F072R8T6 equivalent, key selection criteria include USB clocking autonomy (48 MHz internal oscillator with BCD/LPM), 5V-tolerant I/O count (up to 68 pins), CAN+USB dual-protocol coexistence, and RTC with calendar alarm and VBAT backup support.

Technical Context

The device integrates a single-cycle Cortex-M0 core running at up to 48 MHz, supported by an adaptive clock system featuring four internal oscillators-including a factory-trimmed 48 MHz HSI48 enabling USB without external crystal-and dual PLL paths for peripheral clock domain separation.

Its mixed-signal architecture combines a 12-bit 1.0 µs ADC (16-channel, 0–3.6 V range, separate VDDA supply), dual-channel 12-bit DAC, two programmable analog comparators, and 24-capacitive sensing channels-all synchronized via a shared DMA controller and timer-triggered conversion sequencing.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant ECOPACK®2 construction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F072R8T6, the F070F6P6 sacrifices USB/CAN for lower cost and smaller size, while the F072CBT6 retains full feature parity in a denser LQFP48 package-making the R8T6 optimal for designs needing both high I/O count and dual-protocol connectivity.

Availability

STM32F072R8T6 is available at Aetrix Electronics and suitable for industrial PLC modules, USB-C sensor hubs, and automotive body control units requiring stable component supply across multi-year production cycles.

Supply support for STM32F072R8T6 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, specializing in microcontrollers, power management, and automotive-grade ICs with broad industrial and consumer reach.

The STM32F0 series delivers entry-level Cortex-M0 performance with rich analog/mixed-signal integration-targeted at cost-sensitive, low-power embedded applications where USB, CAN, or capacitive touch are essential.

FAQ

Does STM32F072R8T6 support USB device mode without an external crystal?

Yes. It integrates a factory-trimmed 48 MHz HSI48 oscillator with automatic frequency calibration using USB Start-of-Frame (SOF) tokens. This enables full-speed USB 2.0 device operation without any external crystal or oscillator, reducing bill-of-materials cost and PCB layout complexity.

What is the maximum number of 5V-tolerant I/O pins on this device?

The STM32F072R8T6 provides up to 68 5V-tolerant GPIOs across its LQFP64 package. These pins tolerate 5V logic levels while operating from a 3.3 V supply, enabling direct interfacing with legacy 5V peripherals without external level-shifting circuitry.

Can the internal 12-bit DAC generate simultaneous analog outputs?

Yes. The device contains two independent 12-bit DAC channels (DAC1 and DAC2) that can operate concurrently. Each channel supports software or timer-triggered updates, and both outputs can be buffered or unbuffered-enabling stereo audio generation or dual-channel control signal synthesis.

Is the RTC calendar function battery-backed when main power is removed?

Yes. When VBAT is connected to a coin cell or supercapacitor, the RTC continues running with calendar, alarm, and wakeup-from-Stop/Standby functionality fully preserved. Backup registers retain data, and the RTC maintains time accuracy within ±1 ppm when calibrated using the 32.768 kHz LSE oscillator.