STMicroelectronics STM32F401CEU6TR

Overview

STM32F401CEU6TR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, delivering 105 DMIPS at 84 MHz, featuring 512 KB Flash, 96 KB SRAM, and integrated USB OTG FS controller with on-chip PHY. It supports up to 81 I/Os (78 fast, 5 V-tolerant), 1×12-bit 2.4 MSPS ADC (16 channels), and 11 timers - used in industrial HMI, portable medical sensors, and smart metering gateways requiring real-time signal processing and low-power connectivity.

For engineers reviewing the STM32F401CEU6TR datasheet, STM32F401CEU6TR pinout, STM32F401CEU6TR application, or STM32F401CEU6TR equivalent, key selection criteria include its ART Accelerator-enabled zero-wait-state Flash execution, sub-10 µA Stop mode power consumption, 32 kHz RTC oscillator with calibration, and UFQFPN48 package compatibility with space-constrained PCB layouts.

Technical Context

The device implements an Arm Cortex-M4 core with hardware FPU and DSP instruction set, coupled with ST's adaptive real-time accelerator (ART) for deterministic flash execution. Its memory subsystem includes 512 KB of dual-bank Flash (with read-while-write capability), 96 KB of SRAM (including 32 KB CCM), and 512 bytes of OTP for secure configuration storage.

Clock architecture integrates four oscillators: 4–26 MHz external crystal (HSE), 16 MHz factory-trimmed RC (HSI), 32 kHz external RTC crystal (LSE), and 32 kHz internal RC (LSI); all feed into a multi-source PLL system supporting USB, audio (PLLI2S), and system clock generation up to 84 MHz.

Key Specifications

Pinout & Package

STM32F401CEU6TR is housed in a 48-pin Ultra-Fine Pitch Quad Flat No-lead (UFQFPN48) package, 7 × 7 mm, 0.5 mm pitch, with exposed thermal pad (EP). Pinout conforms to STM32F401xE series standard mapping for UFQFPN48 (package code A0B9), supporting full peripheral remapping via alternate function registers.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F401CEU6TR, STM32F411CEU6 offers more SRAM for complex stacks but removes integrated USB PHY, increasing component count; STM32G431CBU6 trades Flash/USB for enhanced analog integration and higher clock speed - making it superior for mixed-signal control but unsuitable for USB-centric field devices.

Availability

STM32F401CEU6TR is available at Aetrix Electronics and suitable for industrial HMI, portable medical sensors, and smart metering gateways requiring stable component supply, long-term lifecycle assurance, and ECOPACK2-compliant packaging.

Supply support for STM32F401CEU6TR 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, specializing in microcontrollers, power management, MEMS, and automotive ICs with strong focus on industrial and embedded markets.

This device belongs to the STM32F4 mainstream Arm Cortex-M4 MCU family, designed for cost-effective, high-performance applications demanding real-time responsiveness, rich connectivity, and low-power operation across industrial, consumer, and healthcare domains.

FAQ

What is the maximum operating temperature range for STM32F401CEU6TR?

The STM32F401CEU6TR is rated for industrial temperature range: –40 °C to +85 °C. Electrical characteristics including Flash programming voltage, ADC accuracy, and USB timing compliance are guaranteed across this full range per DS10086 Rev 5 Section 6.3.1. Thermal derating is not required below 85 °C ambient.

Does STM32F401CEU6TR support hardware encryption acceleration?

No, STM32F401CEU6TR does not integrate dedicated cryptographic accelerators (e.g., AES, SHA, PKA). It relies on software libraries (e.g., Mbed TLS) running on the Cortex-M4 core. For hardware crypto, consider STM32F412 or STM32L4+ series devices with CryptoCell or AES engines.

Can the internal 16 MHz RC oscillator be used as system clock source without calibration?

Yes, the 16 MHz HSI oscillator is factory-trimmed to ±1% accuracy at 25 °C and can serve as system clock without external crystal. However, frequency drift up to ±4.5% occurs over –40 °C to +85 °C; use HSE for applications requiring tight timing (e.g., USB, UART baud rate stability).

Is the UFQFPN48 package of STM32F401CEU6TR RoHS and REACH compliant?

Yes, STM32F401CEU6TR meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. It is also ECOPACK2 certified - confirming lead-free terminations, halogen-free molding compound, and adherence to ST's environmental policy per datasheet Table 1 and Section 7.3.