STMicroelectronics STM32F723IET6

Overview

STM32F723IET6 from STMicroelectronics is a high-performance Arm® Cortex®-M7 32-bit microcontroller with FPU, delivering 462 DMIPS at 216 MHz, featuring 512 KB Flash, 256+16+4 KB SRAM (including TCM and backup RAM), dual USB OTG (FS/HS), three 12-bit ADCs (up to 7.2 MSPS in triple interleaved mode), and two 12-bit DACs. It targets real-time industrial control, motor drive, and audio processing systems requiring deterministic execution and rich peripheral integration.

For engineers reviewing the STM32F723IET6 datasheet, STM32F723IET6 pinout, STM32F723IET6 application, or STM32F723IET6 equivalent, key selection considerations include its 216 MHz Cortex-M7 core with L1 cache, dual-mode Quad-SPI interface, USB HS/FS OTG with dedicated DMA, 140 GPIOs (138 5 V-tolerant), and support for external SDRAM/NOR/NAND via flexible memory controller.

Technical Context

The STM32F723IET6 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 data, 16 KB instruction TCM RAM for latency-sensitive routines, and 4 KB backup SRAM retained in Standby mode with VBAT.

It integrates dual USB OTG controllers: one full-speed with on-chip PHY, and one high-speed/full-speed with dedicated DMA, on-chip FS/HS PHY, and optional ULPI support. The device supports true random number generation, CRC calculation unit, subsecond-accurate RTC with hardware calendar, and 96-bit unique ID - all essential for secure, time-aware embedded applications.

Key Specifications

Pinout & Package

LQFP64 package (10 × 10 mm, 0.5 mm pitch), 64-pin quad flat leaded package with exposed thermal pad. Pin functions validated per STMicroelectronics DS11853 Rev 9, Table 10 (STM32F722xx/723xx pin and ball definition) and Figure 11 (LQFP64 pinout).

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 STM32F723IET6 offers optimal balance of performance, peripheral richness, and compact LQFP64 packaging for cost-sensitive, space-constrained industrial and audio applications - without over-provisioning memory or features.

Availability

STM32F723IET6 is available at Aetrix Electronics and suitable for industrial motor control, audio signal processing, human-machine interface (HMI), and secure IoT edge node applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for STM32F723IET6 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 is engineered for high-end embedded applications demanding real-time determinism, rich connectivity, and advanced signal processing - bridging the gap between traditional MCUs and application processors.

FAQ

What is the maximum operating frequency and how is it achieved?

The STM32F723IET6 achieves 216 MHz maximum CPU frequency using its internal 16 MHz RC oscillator multiplied by the main PLL, with ART Accelerator and L1 cache enabled to sustain zero-wait-state execution from Flash. External crystal (4–26 MHz) or HSE bypass mode may also be used for higher precision timing, but the 216 MHz rating assumes full cache and ART activation per DS11853 Rev 9 Section 3.1.

Does STM32F723IET6 support external SDRAM, and what interface is used?

Yes, the STM32F723IET6 supports external SDRAM via its Flexible Memory Controller (FMC), which provides a 16-bit data bus, address lines, and control signals (RAS/CAS/WE/CLK/CS). SDRAM support is confirmed in DS11853 Rev 9 Section 3.8 and Table 2, though SDRAM timing parameters require careful PCB layout and register configuration per Section 6.3.30.

How many USB interfaces does this MCU have, and what are their capabilities?

The STM32F723IET6 integrates two independent USB controllers: USB OTG FS (full-speed, 12 Mbps, with on-chip PHY) and USB OTG HS (high-speed, 480 Mbps, with dedicated DMA and either on-chip HS/FS PHY or ULPI interface). Both support device, host, and OTG roles, enabling simultaneous use - e.g., USB audio streaming (HS) while acting as a CDC device (FS).

Is the STM32F723IET6 pin-compatible with other STM32F7 packages like LQFP100 or LQFP144?

No, the STM32F723IET6 uses the LQFP64 package (64 pins), while LQFP100, LQFP144, and other variants have different pin counts, layouts, and signal allocations. Pin compatibility is only maintained within the same package option (e.g., STM32F723IEK6 in WLCSP100 is not pin-compatible with STM32F723IET6). Refer to Table 10 and Section 4 of DS11853 Rev 9 for exact pin definitions per package.