STMicroelectronics STM32F722RET6

Overview

STM32F722RET6 from STMicroelectronics is a high-performance Arm® Cortex®-M7 32-bit microcontroller with FPU, operating at up to 216 MHz (462 DMIPS), featuring 512 KB Flash, 256+16+4 KB SRAM (including TCM and backup RAM), USB OTG HS/FS, three 12-bit ADCs (2.4 MSPS), two 12-bit DACs, and CAN 2.0B - deployed in industrial motor control systems requiring deterministic real-time response and multi-interface connectivity.

For engineers reviewing the STM32F722RET6 datasheet, STM32F722RET6 pinout, STM32F722RET6 application, or STM32F722RET6 equivalent, key selection criteria include Cortex-M7 core performance with L1 cache, dual-mode Quad-SPI support, 140 GPIOs (138 5 V-tolerant), 18 timers including low-power variants, and integrated USB HS PHY with dedicated DMA - all critical for embedded vision, HMI, and connected edge node designs.

Technical Context

The STM32F722RET6 implements an adaptive real-time accelerator (ART Accelerator) with 8 KB instruction and 8 KB data caches, enabling zero-wait-state execution from Flash and external memories. Its memory subsystem includes 256 KB data TCM RAM for time-critical variables, 16 KB instruction TCM RAM for latency-sensitive routines, and 4 KB backup SRAM retained in Standby mode with VBAT.

It integrates dual USB controllers: one full-speed OTG with on-chip PHY, and one high-speed/full-speed OTG with dedicated DMA and dual PHY (on-chip FS + HS or ULPI). The peripheral set supports concurrent high-bandwidth interfaces - up to 5 SPIs (54 Mbit/s), 2 SAIs, 3 I²Cs, 4 USARTs/UARTs, and SDMMC - coordinated via AXI-AHB bus matrix and 16-stream DMA with FIFOs and burst support.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; 64-pin quad flat configuration optimized for thermal management and PCB routing density in space-constrained industrial modules.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance Cortex-M7 microcontroller applications.

Compared with STM32F767ZIT6 and STM32H743VIT6, the STM32F722RET6 delivers optimal balance of Cortex-M7 performance, USB HS capability, and LQFP64 compactness - making it uniquely suited for cost-sensitive, space-constrained industrial controllers where Ethernet or dual-core is unnecessary.

Availability

STM32F722RET6 is available at Aetrix Electronics and suitable for industrial motor drives, human-machine interfaces, medical diagnostic equipment, and smart grid edge nodes requiring stable component supply, long-term manufacturability, and qualified automotive-grade traceability.

Supply support for STM32F722RET6 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 components for industrial, automotive, and consumer markets.

The STM32F7 series targets high-end embedded applications demanding real-time determinism, rich connectivity, and efficient signal processing - with the STM32F722RET6 specifically optimized for LQFP64-based designs needing USB HS, multi-ADC concurrency, and TCM-based latency control.

FAQ

Does STM32F722RET6 support USB High-Speed device mode without an external PHY?

Yes - the STM32F722RET6 integrates a full-speed USB PHY and supports high-speed USB device/host/OTG operation using its on-chip high-speed PHY. No external transceiver is required for HS operation, though ULPI interface is provided for optional external PHY use in specific layout or noise-sensitive scenarios.

What is the maximum ADC sampling rate achievable in triple interleaved mode?

In triple interleaved mode, the three 12-bit ADCs achieve a combined sampling rate of 7.2 MSPS - meaning each channel can be sampled at 2.4 MSPS with hardware-synchronized triggers, enabling precise multi-phase current measurement in motor control applications with <417 ns inter-sample timing.

How does the ART Accelerator improve real-time performance compared to cache-only solutions?

The ART Accelerator combines prefetch, branch prediction, and 8 KB instruction/data caches to deliver zero-wait-state execution from Flash across all operating conditions - unlike pure cache solutions, it maintains deterministic timing even during first-run code execution or cache misses, critical for hard real-time control loops.

Can the 4 KB backup SRAM retain data during complete power loss?

No - the 4 KB backup SRAM retains data only when VBAT (typically 1.8–3.6 V) is supplied, such as from a coin-cell battery during main power removal. Without VBAT, contents are lost in Standby or VBAT-off modes; it is not non-volatile memory but provides reliable retention across sleep-to-wake transitions and brownout recovery.