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STMicroelectronics STM32F401CEY6BTR
- Part No.:
- STM32F401CEY6BTR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 49-UFBGA, WLCSP
- Datasheet:
-
STM32F401CEY6BTR.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 49WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:3,172
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Product details
Overview
STM32F401CEY6BTR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, delivering 105 DMIPS at 84 MHz, featuring 256 KB Flash, 64 KB SRAM, and integrated peripherals including USB OTG FS, SDIO, three I2C, three USART, four SPI, and a 12-bit 2.4 MSPS ADC. It targets compact, power-sensitive embedded control applications such as smart sensors and portable HMI.
For engineers reviewing the STM32F401CEY6BTR datasheet, STM32F401CEY6BTR pinout, STM32F401CEY6BTR application, or STM32F401CEY6BTR equivalent, key selection criteria include its WLCSP49 package footprint, 1.7–3.6 V supply range, -40 °C to 85 °C industrial temperature grade, and ART Accelerator™ enabling zero-wait-state Flash execution.
Technical Context
The device integrates an Adaptive Real-time Accelerator (ART Accelerator™) that eliminates Flash wait states by caching instructions and data, enabling deterministic 84 MHz operation directly from internal Flash memory. Its memory protection unit (MPU) supports secure task isolation in RTOS environments.
It implements a multi-AHB bus matrix for concurrent access to Flash, SRAM, and peripherals, and includes a 16-stream DMA controller with FIFOs and burst support-critical for high-throughput data movement between ADC, SPI, and memory without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 105 DMIPS @ 84 MHz - enables real-time DSP and floating-point math for sensor fusion or motor control. |
| Flash / RAM | 256 KB Flash + 64 KB SRAM - sufficient for complex firmware with bootloader, stack, and real-time buffers. |
| ADC | 1×12-bit, 2.4 MSPS, up to 16 channels - supports high-speed analog monitoring in industrial I/O modules. |
| USB Interface | USB 2.0 full-speed OTG with on-chip PHY - allows direct host/device connectivity without external transceiver. |
| Power Range | 1.7 V to 3.6 V supply - compatible with single-cell Li-ion, coin-cell backup, and standard 3.3 V rails. |
| Temp Range | -40 °C to +85 °C - qualified for industrial ambient conditions without derating. |
| Low-Power Stop Mode | 10 µA typ @ 25 °C (Deep Power Down) - enables battery-powered operation for months in wake-on-event designs. |
Pinout & Package
STM32F401CEY6BTR uses a 49-ball WLCSP (2.965 × 2.965 mm, 0.4 mm pitch) package optimized for space-constrained PCBs. Ball mapping follows JEDEC MO-220 standards with dedicated VCAP, VDDA/VSSA, NRST, BOOT0, and multiple I/O banks supporting 5 V-tolerant operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA | Core & Analog Supply | Separate 1.7–3.6 V inputs; VDDA must be ≥ VDD for ADC accuracy and noise immunity. |
| VCAP_1/VCAP_2 | Internal Regulator Decoupling | Requires 2.2 µF ceramic capacitors per pin to stabilize core voltage regulator output. |
| NRST | Active-Low Reset Input | Asynchronous reset with Schmitt trigger; supports external pull-up and debounced push-button recovery. |
| BOOT0 | Boot Mode Selection | High at power-up forces system memory boot (for DFU); low enables user Flash boot. |
| PA0–PA15, PB0–PB15, etc. | General-Purpose I/O | Up to 81 pins; all 5 V tolerant, configurable as AF functions (SPI/I2C/USART), interrupts, or timers. |
Key Features
| Feature | Design Value |
|---|---|
| ART Accelerator™ | Enables zero-wait-state execution from Flash at 84 MHz - eliminates timing jitter in time-critical ISR handling. |
| Dynamic Efficiency Line | Run mode: 128 µA/MHz; Stop mode: 10 µA typ - extends battery life in always-on edge nodes. |
| Hardware RTC with Calendar | Subsecond accuracy and VBAT-backed operation - maintains time across main power loss without external chip. |
| Multi-Protocol Communication | 3×I2C (1 Mbit/s), 3×USART (10.5 Mbit/s), 4×SPI (42 Mbit/s), SDIO, USB OTG - consolidates connectivity in single-chip gateways. |
| 96-bit Unique ID | Factory-programmed serial number - enables secure device authentication and license binding. |
Applications
| Smart Sensor Node | Industrial HMI Panel |
|---|---|
Use Scenario: Compact environmental monitor with temperature/humidity/pressure sensing, BLE gateway, and local display. IC Role / Device Role / Timing Role: Main application processor executing sensor fusion, USB CDC virtual COM for configuration, and SPI-driven OLED interface. Use Value: WLCSP49 footprint minimizes board area; ART Accelerator ensures deterministic 100 Hz sensor sampling loop timing. | Use Scenario: Touch-enabled operator interface for PLC-controlled machinery with status LEDs and alarm buzzer. IC Role / Device Role / Timing Role: Central UI controller managing capacitive touch decoding, GPIO-driven indicators, and UART communication to PLC. Use Value: 81 I/Os with interrupt capability enable direct button/touch matrix scanning; 5 V-tolerant pins simplify level-shifting with legacy 5 V peripherals. |
| Portable Medical Device | Energy Metering Module |
Use Scenario: Battery-powered pulse oximeter with optical front-end, OLED display, and USB charging/data export. IC Role / Device Role / Timing Role: Signal processor for PPG waveform analysis, ADC driver, and USB device for firmware updates. Use Value: 12-bit 2.4 MSPS ADC captures clean photodiode signals; 10 µA Stop mode enables >1-year shelf life on CR2032. | Use Scenario: DIN-rail mounted electricity meter with current/voltage sensing, RS-485 comms, and tamper detection. IC Role / Device Role / Timing Role: Metrology co-processor interfacing isolated sigma-delta ADCs, running IEC 62056 protocol stack over USART. Use Value: Hardware CRC unit accelerates DLMS/COSEM frame checksums; RTC with calendar supports billing cycle timestamping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F401CCU6 | Same core/peripherals, but in UFQFPN48 (7×7 mm) package with exposed thermal pad - higher thermal dissipation margin. | Better suited for sustained 84 MHz operation under 70 °C ambient; requires rework for thermal vias. | Select when board layout allows larger footprint and thermal management is critical. |
| STM32F411CEU6 | Higher Flash (512 KB), same RAM, adds 2× additional SPI and 1× extra I2C; no SDIO; 100 DMIPS @ 100 MHz. | Enables more complex protocol stacks (e.g., Modbus TCP + local logging); lacks SD card support for field firmware updates. | Choose when firmware size exceeds 256 KB or dual SPI peripherals are needed for display + sensor interface. |
Compared with STM32F401CEY6BTR, STM32F401CCU6 offers identical functionality in a thermally enhanced package, while STM32F411CEU6 trades SDIO for expanded peripheral count and doubled Flash-making it suitable for feature-rich, non-removable-storage applications.
Availability
STM32F401CEY6BTR is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical devices, industrial HMI panels, and energy metering modules requiring stable component supply across long production cycles.
Supply support for STM32F401CEY6BTR 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, and automotive ICs with strong industrial and consumer market presence.
The STM32F401 line delivers cost-optimized Cortex-M4 performance for space- and power-constrained applications, emphasizing integration of USB, SDIO, and analog peripherals in minimal-footprint packages.
FAQ
What is the maximum operating frequency and how is it achieved?
The STM32F401CEY6BTR achieves 84 MHz maximum CPU frequency using its internal PLL driven by the 16 MHz factory-trimmed HSI or an external 4–26 MHz crystal. The ART Accelerator™ eliminates Flash wait states, allowing deterministic zero-wait-state execution at full speed - confirmed in DS9716 Rev 11 Section 3.2.
Does this MCU support hardware encryption or secure boot?
No, the STM32F401CEY6BTR does not include hardware cryptographic accelerators (AES, SHA, PKA) or secure boot ROM. It relies on software-based security libraries and external secure elements for authentication or encrypted firmware updates - as documented in Section 2.1 and Table 2 of DS9716.
Can the 12-bit ADC operate at full 2.4 MSPS with all 16 channels enabled?
No. The 2.4 MSPS rate applies to single-channel sampling. With 16 channels scanned via sequencer, effective throughput drops due to acquisition time and conversion overhead; typical multi-channel rate is ~1.2 MSPS total - specified in Section 6.3.20 and Table 66 of the datasheet.
Is the WLCSP49 package RoHS and REACH compliant?
Yes, STM32F401CEY6BTR meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. All packages in the STM32F401xB/C series are ECOPACK2 certified - verified in Table 1 and Section 7 of DS9716 Rev 11.
STM32F401CEY6BTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 49-UFBGA, WLCSP
- Series:
- STM32F4
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 84MHz
- Connectivity:
- I2C, IrDA, LINbus, SDIO, SPI, UART/USART, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 36
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 96K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.7V ~ 3.6V
- Data Converters:
- A/D 10x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F401CEY6BTR FAQ
1.How can I place an order for STM32F401CEY6BTR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F401CEY6BTR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM32F401CEY6BTR reliable?
The price and inventory of STM32F401CEY6BTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F401CEY6BTR is usually 5 days.
3.What payment methods are accepted for STM32F401CEY6BTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F401CEY6BTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F401CEY6BTR?
STM32F401CEY6BTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F401CEY6BTR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM32F401CEY6BTR?
For technical support, including STM32F401CEY6BTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F401CEY6BTR requirements.
6.How does Aetrix verify that STM32F401CEY6BTR is sourced from the original manufacturer or authorized distributors?
All STM32F401CEY6BTR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32F401CEY6BTR meets industry standards.
7.What is the process for return or replacement of STM32F401CEY6BTR?
All STM32F401CEY6BTR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F401CEY6BTR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM32F401CEY6BTR part is unused and in its original packaging.
Return procedure for STM32F401CEY6BTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32F401CEY6BTR Tags
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