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STMicroelectronics STM32F103REY6TR
- Part No.:
- STM32F103REY6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-UFBGA, WLCSP
- Datasheet:
-
STM32F103REY6TR.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 64WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:6,609
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Product details
Overview
STM32F103REY6TR from STMicroelectronics is a high-density performance-line Arm® Cortex®-M3 microcontroller featuring 512 KB Flash, 64 KB SRAM, USB 2.0 full-speed interface, CAN 2.0B controller, and three 12-bit ADCs with 21 channels - deployed in industrial motor control systems requiring real-time PWM generation, analog sensing, and fieldbus communication.
For engineers reviewing the STM32F103REY6TR datasheet, STM32F103REY6TR pinout, STM32F103REY6TR application, or STM32F103REY6TR equivalent, key selection criteria include 72 MHz CPU clock, 112 I/O pins (5 V-tolerant), dual 12-bit DACs, FSMC support for external memory, and SWD/JTAG debug capability - all within a compact WLCSP64 package.
Technical Context
The STM32F103REY6TR implements an Arm Cortex-M3 core with Harvard architecture, single-cycle multiplication, hardware divide, and nested vectored interrupt controller (NVIC) supporting up to 84 maskable interrupts. It integrates a flexible static memory controller (FSMC) with four chip selects for NOR/PSRAM/NAND/CompactFlash interfacing and parallel LCD interface (8080/6800 modes).
Clock system includes dual oscillators: 4–16 MHz HSE crystal input and factory-trimmed 8 MHz HSI RC, plus 40 kHz LSI and 32.768 kHz LSE for RTC. PLL supports configurable multiplication (2–16×) of HSE or HSI to achieve 72 MHz system clock with ±1% accuracy over temperature and voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3, 72 MHz max frequency - enables deterministic real-time execution of motor control algorithms with ≤14 ns instruction cycle time. |
| Memory | 512 KB Flash + 64 KB SRAM - sufficient for complex firmware with bootloader, safety monitoring, and multi-axis motion control code. |
| ADC | 3 × 12-bit, 1 µs conversion, 21 channels - supports simultaneous sampling across multiple motor phases and temperature/voltage feedback paths. |
| DAC | 2 × 12-bit - provides precise analog reference outputs for sensor calibration or analog actuator control signals. |
| Timers | Up to 11 timers including 4 × 16-bit general-purpose, 2 × 16-bit motor control PWM with dead-time insertion - essential for 3-phase inverter gate driving. |
| Communication | USB 2.0 FS, CAN 2.0B, 5 × USART, 3 × SPI, 2 × I²C - enables dual-bus field communication (CAN for distributed I/O, USB for configuration and diagnostics). |
| I/O Pins | 112 GPIO, 5 V-tolerant, mapped to 16 EXTI lines - allows direct connection to industrial sensors, encoders, and level-shifted peripherals without external buffers. |
Pinout & Package
STM32F103REY6TR uses a 64-ball WLCSP (Wafer-Level Chip-Scale Package), 4.466 × 4.395 mm, 0.5 mm pitch, suitable for space-constrained industrial PCBs with fine-pitch routing and thermal pad grounding.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VSS, VSSA | Power supply and ground | Dual-domain power: VDD/VSS for digital logic; VDDA/VSSA for analog subsystem - mandatory separation prevents noise coupling into ADC/DAC paths. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | 112 total GPIOs, most 5 V-tolerant - enable direct interfacing with legacy 5 V sensors, optocouplers, and industrial logic without level shifters. |
| PA11/PA12 | USB D+/D− | Dedicated full-speed USB 2.0 transceiver pins - require 1.5 kΩ pull-up on D+ for device enumeration; no external PHY needed. |
| PB8/PB9 | CAN RX/TX | Direct connection to CAN transceiver (e.g., TJA1050); internal pull-ups/downs configurable - supports robust fieldbus communication at 1 Mbps. |
| NRST | Active-low reset | Asynchronous reset input with Schmitt trigger - accepts 10 µs minimum pulse width; compatible with external watchdog or power supervisor ICs. |
Key Features
| Feature | Design Value |
|---|---|
| Flexible Static Memory Controller (FSMC) | Supports external NOR flash, PSRAM, NAND, and CompactFlash - enables firmware updates from removable media or expansion of data logging buffer beyond internal SRAM. |
| Temperature Sensor | Integrated calibrated sensor with ±1.5°C accuracy (0–100°C) - provides real-time die temperature monitoring for thermal derating in motor drive applications. |
| DMA Controller | 12-channel, peripheral-to-memory and memory-to-peripheral transfers - offloads ADC sampling, USB packet buffering, and SPI data streaming from CPU, reducing latency and jitter. |
| Low-Power Modes | Sleep, Stop, Standby with VBAT backup - achieves <1 µA standby current with RTC and backup registers active - critical for battery-backed industrial controllers. |
| CRC Calculation Unit | Hardware CRC-32 generator - accelerates firmware integrity checks and communication frame validation without CPU overhead. |
Applications
| Industrial Motor Drive | Smart Energy Metering |
|---|---|
|
Use Scenario: Closed-loop control of 3-phase BLDC motors in HVAC compressors and pump drives. IC Role / Device Role / Timing Role: Real-time execution of FOC (Field-Oriented Control) algorithm using dual 12-bit DACs for current reference generation and quadrature encoder inputs on timer channels. Use Value: Precise 72 MHz timing enables 20 kHz PWM carrier frequency with sub-microsecond dead-time resolution, minimizing torque ripple and EMI. |
Use Scenario: DIN-rail mounted electricity meter with tariff switching, tamper detection, and PLC/GPRS backhaul. IC Role / Device Role / Timing Role: Analog front-end controller managing 3× 12-bit ADCs for voltage/current sampling, RTC for billing timestamping, and CAN for local cluster communication. Use Value: Integrated 32.768 kHz RTC with calibration ensures ±2 ppm accuracy over -40°C to +85°C - meets IEC 62053-21 Class 0.5S timing requirements. |
| Programmable Logic Controller (PLC) I/O Module | Medical Infusion Pump Controller |
|
Use Scenario: Compact 16-channel digital I/O expansion module with isolation and diagnostics. IC Role / Device Role / Timing Role: High-speed GPIO management with EXTI-triggered edge detection, USB CDC for configuration, and CAN for backplane bus communication. Use Value: 112 5 V-tolerant I/Os allow direct connection to standard 24 V industrial logic levels via external pull-ups - eliminates discrete level-shifting components. |
Use Scenario: Safety-critical infusion pump with flow rate control, occlusion detection, and alarm signaling. IC Role / Device Role / Timing Role: Dual 12-bit DACs generate precision analog setpoints for motor drivers; triple ADCs monitor pressure, flow, and battery voltage simultaneously. Use Value: Triple-sample-and-hold ADC capability enables synchronized sampling across three analog channels - critical for accurate differential pressure calculation during occlusion events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F103VET6 | LQFP100 package (10 × 10 mm), 100-pin, same 512 KB Flash/SRAM but 80 GPIOs vs. 112; no WLCSP footprint compatibility. | Better suited for prototyping and manual soldering; lacks WLCSP's board area savings and thermal performance under continuous load. | Select when PCB reworkability, debug header access, or heatsink attachment is prioritized over miniaturization. |
| STM32F407VGT6 | Cortex-M4 core, 168 MHz, FPU, 1 MB Flash, 192 KB SRAM - higher performance but larger package (LQFP100) and increased power draw. | Required for floating-point intensive tasks (e.g., FFT-based vibration analysis); over-spec for basic motor control or metering. | Choose only if existing firmware relies on DSP instructions or >72 MHz deterministic timing is mandatory. |
Compared with STM32F103VET6, the REY6TR offers superior board-area efficiency and thermal dissipation in ultra-compact designs; versus STM32F407VGT6, it delivers optimal cost-performance balance for deterministic real-time control without floating-point overhead.
Availability
STM32F103REY6TR is available at Aetrix Electronics and suitable for industrial motor drives, smart energy meters, programmable logic controller (PLC) modules, and medical infusion pump controllers requiring stable component supply across extended product lifecycles.
Supply support for STM32F103REY6TR 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, specializing in microcontrollers, power management, sensors, and automotive ICs with vertical manufacturing and broad industrial qualification coverage.
The STM32F1 series targets cost-sensitive, high-reliability embedded applications demanding rich analog integration, real-time responsiveness, and long-term availability - especially in industrial automation and metering.
FAQ
What is the maximum operating temperature range for STM32F103REY6TR?
The STM32F103REY6TR is qualified for industrial temperature range: –40°C to +85°C ambient. Its WLCSP64 package features exposed thermal pad design enabling effective heat transfer to PCB ground plane, sustaining full 72 MHz operation at 85°C with appropriate copper pour and via stitching per ST's AN4879 layout guidelines.
Does STM32F103REY6TR support USB device mode without external components?
Yes - it integrates a full-speed USB 2.0 transceiver with internal pull-up resistor control on PA12 (D+). Only a single 1.5 kΩ pull-up to 3.3 V on PA12 is required for enumeration; no external PHY, resistors, or crystal is needed for basic CDC or HID device operation.
How many independent PWM outputs can be generated simultaneously?
Up to 28 independent PWM outputs: four 16-bit general-purpose timers (each with up to 4 channels), two 16-bit motor control timers (each with 6 channels including complementary pairs), and two basic timers driving DACs - all fully configurable with dead-time insertion and fault protection.
Is the WLCSP64 package RoHS and REACH compliant?
Yes - STM32F103REY6TR carries ECOPACK®2 certification, meeting RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Lead-free matte tin finish, halogen-free molding compound, and fully traceable material declarations are provided in ST's official compliance documentation.
STM32F103REY6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-UFBGA, WLCSP
- Series:
- STM32F1
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 72MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, SPI, UART/USART, USB
- Peripherals:
- DMA, Motor Control PWM, PDR, POR, PVD, PWM, Temp Sensor, WDT
- Number of I/O:
- 51
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 3.6V
- Data Converters:
- A/D 16x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F103REY6TR FAQ
1.How can I place an order for STM32F103REY6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F103REY6TR 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 STM32F103REY6TR reliable?
The price and inventory of STM32F103REY6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F103REY6TR is usually 5 days.
3.What payment methods are accepted for STM32F103REY6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F103REY6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F103REY6TR?
STM32F103REY6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F103REY6TR 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 STM32F103REY6TR?
For technical support, including STM32F103REY6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F103REY6TR requirements.
6.How does Aetrix verify that STM32F103REY6TR is sourced from the original manufacturer or authorized distributors?
All STM32F103REY6TR 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 STM32F103REY6TR meets industry standards.
7.What is the process for return or replacement of STM32F103REY6TR?
All STM32F103REY6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F103REY6TR, 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 STM32F103REY6TR part is unused and in its original packaging.
Return procedure for STM32F103REY6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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