STMicroelectronics STM32F411CEU6

Overview

STM32F411CEU6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, delivering 125 DMIPS at 100 MHz, featuring 512 KB Flash, 128 KB SRAM, USB OTG FS, and 13 communication interfaces. It operates from 1.7–3.6 V across –40°C to 85°C, supporting motor control, sensor hub, and industrial PLC applications with integrated ART Accelerator for zero-wait-state flash execution.

For engineers reviewing the STM32F411CEU6 datasheet, STM32F411CEU6 pinout, STM32F411CEU6 application, or STM32F411CEU6 equivalent, key selection considerations include its 48-pin UFQFPN package, 100 MHz CPU frequency, 12-bit 2.4 MSPS ADC, low-power Stop mode (9 µA), and USB OTG FS controller with on-chip PHY.

Technical Context

The STM32F411CEU6 integrates an adaptive real-time accelerator (ART) enabling deterministic 0-wait-state execution from Flash memory, critical for real-time control loops. Its memory subsystem includes 512 KB of embedded Flash with ECC support and 128 KB of SRAM, partitioned into multiple banks for concurrent access.

It implements a multi-AHB bus matrix connecting core, DMA, and peripherals, allowing parallel data transfers-e.g., simultaneous ADC sampling via DMA while CPU processes results. The clock system supports four oscillators (HSE 4–26 MHz, HSI 16 MHz, LSE 32.768 kHz, LSI) and dual PLLs (main PLL + audio PLLI2S) for independent domain timing.

Key Specifications

Pinout & Package

STM32F411CEU6 is housed in a 48-pin Ultra-Fine Pitch Quad Flat No-lead (UFQFPN) package measuring 7 mm × 7 mm with 0.5 mm pitch, compliant with ECOPACK2 environmental standards.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F411CEU6, the F401CEU6 trades FPU and OTG for lower cost and reduced SRAM, while the F412CEU6 extends capabilities with crypto and graphics acceleration-making the F411CEU6 optimal for balanced performance, power, and interface richness in mid-tier industrial and medical designs.

Availability

STM32F411CEU6 is available at Aetrix Electronics and suitable for motor drive control, medical sensor hubs, industrial PLC modules, and home audio streaming terminals requiring stable component supply across extended product lifecycles.

Supply support for STM32F411CEU6 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, MEMS, and automotive semiconductors since 1987.

The STM32F4 Series targets high-performance embedded applications demanding real-time responsiveness, rich connectivity, and energy efficiency - optimized for industrial automation, medical instrumentation, and consumer electronics with complex signal processing.

FAQ

What is the maximum operating temperature range for STM32F411CEU6?

The STM32F411CEU6 is rated for industrial temperature range: –40°C to +85°C ambient. This is confirmed in Section 6.3.1 of DS10314 Rev 8, where electrical characteristics are guaranteed across this range with VDD = 1.7–3.6 V. Extended variants (e.g., STM32F411VE) support up to +105°C, but CEU6 is specified only to +85°C.

Does STM32F411CEU6 support external memory interfaces like FSMC or OCTOSPI?

No, STM32F411CEU6 does not include FSMC (Flexible Static Memory Controller) or OCTOSPI. As documented in Table 2 of DS10314 Rev 8, it lacks external memory bus support - unlike higher-pin-count F411xE variants (e.g., LQFP100) which integrate FSMC. Designers requiring external SDRAM or NOR Flash must select STM32F411RE or STM32F411VE.

Can the internal 16 MHz RC oscillator be used as the system clock source?

Yes, the factory-trimmed 16 MHz HSI RC oscillator can serve as the system clock source. According to Section 3.12 and Table 39 of DS10314 Rev 8, HSI accuracy is ±1% over temperature and voltage, making it suitable for applications where USB communication is not required. For USB OTG FS, however, an external crystal (4–26 MHz) or PLL-derived clock with tighter jitter specs is mandatory.

How many general-purpose timers are available on STM32F411CEU6?

The STM32F411CEU6 includes six 16-bit general-purpose timers (TIM2–TIM7), two 32-bit general-purpose timers (TIM9–TIM11), one advanced-control timer (TIM1), and two watchdog timers (independent and window). This totals 11 timers, as stated in the device summary and Table 2 of DS10314 Rev 8 - enabling simultaneous PWM generation, input capture, quadrature decoding, and time-stamping.