STMicroelectronics STM32F722ZET6TR

Overview

STM32F722ZET6TR 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, USB OTG HS/FS, three 12-bit ADCs (2.4 MSPS), two 12-bit DACs, and 18 timers - deployed in industrial motor control, human-machine interface (HMI) systems, and real-time audio processing.

For engineers reviewing the STM32F722ZET6TR datasheet, STM32F722ZET6TR pinout, STM32F722ZET6TR application, or STM32F722ZET6TR equivalent, key selection criteria include LQFP144 package compatibility, dual USB OTG support (HS + FS), TCM RAM allocation for deterministic latency, and bxCAN 2.0B interface integration in embedded control designs.

Technical Context

The device implements an adaptive real-time accelerator (ART Accelerator) with 8 KB instruction and 8 KB data caches, enabling zero-wait-state execution from Flash memory and external memories. Its memory subsystem includes 256 KB data TCM RAM, 16 KB instruction TCM RAM, and 4 KB backup SRAM - all optimized for hard real-time tasks and low-power retention.

It integrates dual USB OTG controllers (one full-speed with on-chip PHY, one high-speed with dedicated DMA and dual PHY options), a flexible external memory controller supporting SDRAM/NOR/NAND, and dual SAIs with audio-class PLLs - confirming its role as a system-on-chip for mixed-signal, connectivity-rich embedded applications.

Key Specifications

Pinout & Package

LQFP144 (20 × 20 mm) package with 144 pins, 138 of which are 5 V-tolerant I/Os, supporting wide-voltage interfacing in industrial environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F723ZET6, the STM32F722ZET6TR lacks USB HS PHY regulator support but matches all other peripherals and performance specs - making it optimal for cost-sensitive, non-certified USB HS applications. Versus STM32H743ZIT6, it trades scalability and multimedia features for lower power, smaller footprint, and simpler toolchain integration.

Availability

STM32F722ZET6TR is available at Aetrix Electronics and suitable for industrial motor control, human-machine interface (HMI) systems, and medical diagnostic equipment requiring stable component supply and long-term production support.

Supply support for STM32F722ZET6TR 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 STM32F7 series targets high-end embedded applications demanding real-time performance, rich connectivity, and deterministic execution - with the STM32F722 line optimized for cost-effective Cortex-M7 adoption in industrial and medical edge devices.

FAQ

What is the maximum operating frequency and associated performance metric of the STM32F722ZET6TR?

The STM32F722ZET6TR operates at up to 216 MHz with a measured performance of 462 DMIPS (Dhrystone 2.1), achieving 2.14 DMIPS/MHz. This rating reflects actual execution speed under benchmark conditions using the ART Accelerator and L1 cache - not theoretical peak throughput. The core includes a single-precision FPU and DSP instructions for efficient mathematical operations.

Does the STM32F722ZET6TR support external SDRAM, and what interface is used?

Yes, the STM32F722ZET6TR supports external SDRAM via its Flexible Memory Controller (FMC), which provides a configurable 32-bit data bus and dedicated control signals (RAS, CAS, WE, CS, CLK, etc.). It supports LPDDR/SDR SDRAM and is validated for use with standard IS42S16400J-type devices. The FMC operates independently of the CPU clock, enabling concurrent memory access and CPU execution.

How many 5 V-tolerant I/O pins does the STM32F722ZET6TR have, and why is this important?

The STM32F722ZET6TR has up to 138 5 V-tolerant I/O pins in the LQFP144 package. This tolerance allows direct interfacing with legacy 5 V logic (e.g., RS-485 transceivers, industrial PLC I/O modules, or older microcontrollers) without external level-shifting circuitry - reducing BOM count, PCB area, and signal integrity risks in mixed-voltage industrial systems.

What USB capabilities does the STM32F722ZET6TR provide, and how are they implemented physically?

The STM32F722ZET6TR integrates two independent USB controllers: OTG_FS (full-speed, with on-chip PHY on PA11/PA12) and OTG_HS (high-speed, with dedicated DMA and either on-chip HS/FS PHY or ULPI interface). Physical implementation requires PA11/PA12 for FS and dedicated pins like PB12–PB15 plus PA3 for HS differential signaling - with external 1.25 Ω resistors only if using ULPI mode, not with on-chip PHY.