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STMicroelectronics STM32F401CEY6TR
- Part No.:
- STM32F401CEY6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 49-UFBGA, WLCSP
- Datasheet:
-
STM32F401CEY6TR.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 49WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,917
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Product details
Overview
STM32F401CEY6TR from STMicroelectronics is an Arm® Cortex®-M4 32-bit microcontroller with FPU, 84 MHz max CPU frequency, 512 KB Flash, 96 KB SRAM, and integrated USB 2.0 FS OTG controller with on-chip PHY - deployed in portable medical sensors requiring deterministic real-time control, low-power operation, and embedded connectivity.
For engineers reviewing the STM32F401CEY6TR datasheet, STM32F401CEY6TR pinout, STM32F401CEY6TR application, or STM32F401CEY6TR equivalent, key selection criteria include Flash/SRAM size trade-offs, 5 V-tolerant I/O count (up to 78), ART Accelerator-enabled zero-wait-state execution, and USB OTG FS host/device capability without external transceiver.
Technical Context
The device implements a single-core Arm Cortex-M4 with hardware FPU and Memory Protection Unit (MPU), supporting DSP instructions and Dhrystone 2.1 performance of 105 DMIPS at 84 MHz. Its adaptive real-time accelerator (ART) enables zero-wait-state execution from Flash memory across full voltage (1.7–3.6 V) and temperature ranges.
Power architecture includes three low-power modes (Stop, Deep Stop, Standby) with sub-µA RTC retention (1 µA @ 25 °C on VBAT) and fast wake-up (≤5 µs from Sleep). Clock system integrates 4–26 MHz HSE, 32 kHz LSE for RTC, and factory-trimmed 16 MHz HSI with ±1% accuracy over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU and MPU - enables floating-point math, real-time task isolation, and DSP algorithm acceleration. |
| Max Frequency | 84 MHz - delivers 105 DMIPS (1.25 DMIPS/MHz) for deterministic real-time control loops. |
| Memory | 512 KB Flash + 96 KB SRAM - supports complex firmware with bootloader, OTA update partitioning, and real-time data buffering. |
| ADC | 1×12-bit, 2.4 MSPS, up to 16 channels - sufficient for multi-sensor analog acquisition (e.g., ECG, temperature, pressure) without external ADC. |
| I/O Count & Tolerance | Up to 78 fast I/Os (≤42 MHz), all 5 V-tolerant - simplifies interface to legacy peripherals and industrial logic without level shifters. |
| USB Interface | USB 2.0 Full-Speed OTG with on-chip PHY - enables direct host/device/OTG operation without external transceiver or crystal. |
| Low-Power Modes | Standby: 2.4 µA @ 25 °C (no RTC); Stop: down to 10 µA - extends battery life in wearable and sensor-edge applications. |
Pinout & Package
STM32F401CEY6TR uses the UFQFPN48 (7 × 7 mm) package with 48-pin layout, ECOPACK2-compliant, suitable for space-constrained PCBs with thermal pad grounding.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VSS, VSSA | Power supply and ground rails | Dual-domain power (digital/analog) with dedicated analog ground improves ADC SNR and noise immunity. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE15 | General-purpose I/O banks | 78 total 5 V-tolerant pins mapped across 5 GPIO ports; support multiple alternate functions (USART, SPI, I2C, TIM). |
| PA11/PA12 | USB DM/DP | Dedicated full-speed USB 2.0 differential pair with internal transceiver - eliminates external PHY and 48 MHz crystal. |
| PC13–PC15 | RTC oscillator inputs | Support 32.768 kHz crystal for hardware calendar and subsecond-accurate timekeeping with calibration. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; accepts 1.65–5.5 V logic - compatible with diverse reset supervisor ICs. |
Key Features
| Feature | Design Value |
|---|---|
| ART Accelerator | Enables zero-wait-state execution from Flash at 84 MHz - eliminates cache misses and jitter in time-critical ISR paths. |
| USB OTG FS with PHY | Integrated transceiver and USB clock generation - reduces BOM cost and board area vs. discrete PHY solutions. |
| 5 V-tolerant I/Os | All 78 fast I/Os withstand 5.5 V - allows direct connection to TTL/CMOS logic, RS-232 line drivers, and industrial sensors. |
| Hardware RTC with Calendar | Subsecond accuracy and automatic leap-year correction - supports timestamped data logging without software overhead. |
| 16-stream DMA with FIFO | Offloads CPU during high-bandwidth transfers (e.g., ADC → SRAM, SPI → Flash) - preserves real-time latency for control tasks. |
Applications
| Portable ECG Monitor | Smart Home Hub Controller |
|---|---|
Use Scenario: Battery-powered wearable capturing 3-lead ECG signals with Bluetooth LE telemetry. IC Role / Device Role / Timing Role: Main MCU executing signal filtering, R-peak detection, and BLE packet framing; RTC provides timestamped waveform metadata. Use Value: 12-bit ADC with 2.4 MSPS and 5 V-tolerant GPIO simplify analog front-end design; 10 µA Stop mode extends 7-day battery life. | Use Scenario: Central gateway aggregating Zigbee, Z-Wave, and Wi-Fi devices with local automation logic. IC Role / Device Role / Timing Role: Application processor managing protocol translation, rule engine, and secure OTA updates; USB OTG enables field firmware recovery via flash drive. Use Value: 512 KB Flash accommodates dual-image bootloader and encrypted firmware; 78 I/Os support multiple concurrent peripheral interfaces. |
| Industrial Temperature Logger | USB-C Powered Sensor Node |
Use Scenario: DIN-rail mounted logger recording ambient and probe temperatures every 10 seconds for 1 year. IC Role / Device Role / Timing Role: Data acquisition controller with RTC-triggered sampling, CRC-protected Flash storage, and RS-485 Modbus output. Use Value: Standby current of 2.4 µA enables >10-year coin-cell operation; 32 kHz LSE calibration ensures ±1 ppm RTC drift over temperature. | Use Scenario: Self-powered environmental sensor using USB-C VBUS as primary supply with battery backup. IC Role / Device Role / Timing Role: Power-aware system manager monitoring VBUS presence, switching between USB and battery, and regulating 3.3 V rail. Use Value: Wide 1.7–3.6 V operating range matches USB-C VBUS tolerance (4.75–5.5 V with LDO); VBAT pin supports seamless switchover to backup cell. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F401CBU6 | Same core, 128 KB Flash / 32 KB SRAM, QFN32 package | Fewer I/Os (37), no USB OTG PHY, lower memory - suited for cost-sensitive, compact designs with minimal peripheral needs | Select when BOM cost and footprint are prioritized over USB functionality and memory headroom. |
| STM32F411CEU6 | Same package, 512 KB Flash / 128 KB SRAM, higher 100 MHz CPU, no USB OTG PHY | Enhanced compute (125 DMIPS), larger SRAM for complex stacks, but requires external USB transceiver | Choose when higher processing throughput and RAM are critical, and USB can be implemented externally. |
Compared with STM32F401CBU6, the STM32F401CEY6TR offers 4× more Flash, 3× more SRAM, and integrated USB OTG - enabling richer firmware and direct connectivity. Versus STM32F411CEU6, it trades 16 MHz speed and +32 KB SRAM for built-in USB PHY - reducing component count and layout complexity in USB-centric designs.
Availability
STM32F401CEY6TR is available at Aetrix Electronics and suitable for portable medical sensors, smart home hubs, industrial loggers, and USB-C powered sensor nodes requiring stable component supply and long-term manufacturability.
Supply support for STM32F401CEY6TR 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 components for industrial, automotive, and consumer markets.
The STM32F4 series targets high-performance, energy-efficient embedded applications requiring real-time responsiveness, rich connectivity, and robust security - optimized for IoT edge nodes and human-interface devices.
FAQ
What is the maximum operating frequency and associated performance metric?
The STM32F401CEY6TR operates at up to 84 MHz with a measured Dhrystone 2.1 score of 105 DMIPS (1.25 DMIPS/MHz). This performance is sustained under full voltage (1.7–3.6 V) and temperature ranges thanks to the ART Accelerator, which eliminates Flash wait states and ensures deterministic instruction timing for real-time control tasks.
Does this MCU support USB device/host functionality without external components?
Yes - the STM32F401CEY6TR integrates a full-speed USB 2.0 OTG controller with on-chip PHY and internal clock generation. PA11 (DM) and PA12 (DP) provide the differential pair; no external transceiver, 48 MHz crystal, or level-shifting circuitry is required for basic USB device or host operation.
How many I/O pins are 5 V-tolerant, and what is their maximum toggle speed?
All 78 fast I/O pins are 5 V-tolerant and rated for up to 42 MHz toggle speed. This includes all GPIOs across ports A–E, enabling direct interfacing with 5 V logic families, RS-232 drivers, and industrial sensors without external level translators - verified per datasheet Section 6.3.16.
What low-power modes are supported, and what is the lowest achievable current draw?
The MCU supports Sleep, Stop (Flash in Deep Power Down), and Standby modes. The lowest active-retention current is 10 µA typical at 25 °C in Stop mode with Flash in Deep Power Down and RTC running from VBAT. Standby mode draws 2.4 µA at 25 °C without RTC - both values confirmed in DS10086 Rev 5, Table 27 and Table 29.
STM32F401CEY6TR 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:
STM32F401CEY6TR FAQ
1.How can I place an order for STM32F401CEY6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F401CEY6TR 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 STM32F401CEY6TR reliable?
The price and inventory of STM32F401CEY6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F401CEY6TR is usually 5 days.
3.What payment methods are accepted for STM32F401CEY6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F401CEY6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F401CEY6TR?
STM32F401CEY6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F401CEY6TR 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 STM32F401CEY6TR?
For technical support, including STM32F401CEY6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F401CEY6TR requirements.
6.How does Aetrix verify that STM32F401CEY6TR is sourced from the original manufacturer or authorized distributors?
All STM32F401CEY6TR 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 STM32F401CEY6TR meets industry standards.
7.What is the process for return or replacement of STM32F401CEY6TR?
All STM32F401CEY6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F401CEY6TR, 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 STM32F401CEY6TR part is unused and in its original packaging.
Return procedure for STM32F401CEY6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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