STMicroelectronics STM32F072R8T6TR

Overview

STM32F072R8T6TR 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 - deployed in industrial HMI panels, smart sensor gateways, and USB-connected embedded controllers requiring low-power operation and mixed-signal integration.

For engineers reviewing the STM32F072R8T6TR datasheet, STM32F072R8T6TR pinout, STM32F072R8T6TR application, or STM32F072R8T6TR equivalent, key selection criteria include USB clocking autonomy (48 MHz internal oscillator with trimming), 5V-tolerant GPIO count (up to 68 pins), CAN+USB coexistence, RTC with VBAT backup, and 12-bit dual-channel DAC for analog output generation.

Technical Context

This MCU integrates a single-cycle Cortex-M0 core running at up to 48 MHz, coupled with a clock recovery system (CRS) enabling USB full-speed operation without external crystal - critical for cost-sensitive, space-constrained USB peripherals. Its memory subsystem includes 64 KB of Flash with error correction and 16 KB of HW-parity SRAM, supporting deterministic real-time execution.

The peripheral set is optimized for mixed-signal edge nodes: one 12-bit, 1.0 µs ADC (16 channels, 0–3.6 V range), two 12-bit DAC channels, two fast comparators, 24-capacitive sensing channels, and dual watchdog timers (IWDG/WWDG) - all operating across 2.0–3.6 V supply with independent VDDIO2 support for partial I/O voltage flexibility.

Key Specifications

Pinout & Package

LQFP64 package (10 × 10 mm, 0.5 mm pitch), RoHS-compliant ECOPACK®2, rated for 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 STM32F072CBT6, the R8T6TR provides 15 additional GPIOs and dual USARTs for enhanced connectivity; versus STM32F070F6P6, it adds essential USB/CAN/DAC functionality required for modern embedded gateways - making it the only option supporting crystal-less USB + CAN coexistence in LQFP64.

Availability

STM32F072R8T6TR is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor gateways, and USB-capable power monitors requiring stable component supply, long-term lifecycle assurance, and full industrial temperature grade support.

Supply support for STM32F072R8T6TR 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 STM32F0 series targets cost-sensitive, low-power embedded applications requiring Arm Cortex-M0 performance with rich analog/mixed-signal integration - specifically engineered for industrial control, appliance HMI, and USB-peripheral devices.

FAQ

Does STM32F072R8T6TR require an external crystal for USB operation?

No. It features an internal 48 MHz HSI48 oscillator with automatic trimming synchronized to USB Start-of-Frame (SOF) packets, enabling full-speed USB 2.0 operation without any external crystal - verified per DS9826 Rev 6 Section 3.6 and Table 43.

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

Up to 68 I/O pins are 5V-tolerant, as confirmed in the "Features" section of DS9826 Rev 6 (page 1). This includes all GPIOs except those assigned to analog functions (e.g., ADC/DAC pins) and specific debug pins like SWDIO/SWCLK.

Can the internal RTC retain time during main power loss?

Yes. The RTC operates from VBAT (backup supply) and retains calendar time, alarm settings, and 32-bit counter state during main VDD power loss - supported by dedicated VBAT pin and internal power switch, per Section 3.15 and Table 24 of DS9826 Rev 6.

Is the 12-bit DAC output buffered, and can it drive external loads directly?

Yes. Both DAC channels (DAC_OUT1/DAC_OUT2) include software-controllable output buffers capable of driving resistive loads down to 5 kΩ, as specified in Section 3.11 and Table 60 of DS9826 Rev 6 - enabling direct connection to op-amp inputs or low-current analog circuits.