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STMicroelectronics STM32F103VCT6TR
- Part No.:
- STM32F103VCT6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
STM32F103VCT6TR.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:183
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Product details
Overview
STM32F103VCT6TR from STMicroelectronics is a high-density performance-line Arm® Cortex®-M3 microcontroller with 256 KB Flash, 48 KB SRAM, 72 MHz CPU clock, USB 2.0 full-speed interface, and CAN 2.0B controller. It integrates three 12-bit ADCs (21 channels), two 12-bit DACs, 11 timers including motor-control PWM units, and up to 112 I/Os-used in industrial PLCs, motor drives, and USB-connected sensor gateways.
For engineers reviewing the STM32F103VCT6TR datasheet, STM32F103VCT6TR pinout, STM32F103VCT6TR application, or STM32F103VCT6TR equivalent, key selection criteria include Flash/SRAM size, USB+CAN dual-interface capability, 100-pin LQFP package compatibility, and support for real-time motor control with dead-time generation and quadrature encoder inputs.
Technical Context
This MCU implements a Harvard-architecture Cortex-M3 core with single-cycle multiplication, hardware divide, and NVIC supporting 68 interrupt channels. Its memory subsystem includes 256 KB of embedded Flash with 24-bit CRC unit and 48 KB SRAM, plus FSMC enabling direct interface to NOR/PSRAM/CompactFlash.
The peripheral set features dual CAN 2.0B controllers with dedicated message RAM, full-speed USB 2.0 PHY with internal transceiver, and three independent 12-bit ADCs with triple-sample-and-hold-enabling simultaneous sampling across multiple analog channels for closed-loop control systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3, 72 MHz max - enables deterministic real-time execution with 1.25 DMIPS/MHz performance |
| Flash Memory | 256 KB - sufficient for complex firmware with bootloader, USB/CAN protocol stacks, and application logic |
| SRAM | 48 KB - supports large buffers for USB packet handling, CAN message queues, and ADC data streaming |
| ADC | 3 × 12-bit, 1 µs conversion, up to 21 channels - allows synchronized multi-sensor acquisition in motor control or power monitoring |
| DAC | 2 × 12-bit - provides precise analog output for reference voltage generation or actuator control signals |
| Timers | Up to 11 timers including 4 × 16-bit general-purpose, 2 × motor-control PWM with dead-time insertion - essential for BLDC/PMSM drive timing |
| Communication | USB 2.0 FS + CAN 2.0B + 5 × USART + 3 × SPI + 2 × I²C - supports fieldbus connectivity and host PC interface simultaneously |
| I/O Count | 100 pins (LQFP100) with 5 V-tolerant inputs - simplifies interfacing with legacy industrial sensors and logic levels |
Pinout & Package
LQFP100 package: 14 × 14 mm, 0.5 mm pitch, thermally enhanced with exposed thermal pad (EPAD); RoHS-compliant, ECOPACK® certified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Core and I/O domain supplies; decoupling required per datasheet layout guidelines |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Configurable as GPIO, alternate function (USART/SPI/I²C), or interrupt sources; most are 5 V-tolerant |
| PA9/PA10 | USB_DM/USB_DP | Dedicated full-speed USB differential pair; internal pull-ups enable enumeration without external components |
| PB8/PB9 | CAN_RX/CAN_TX | Dedicated CAN bus interface; requires external transceiver for physical layer compliance |
| PC13–PC15 | RTC oscillator inputs | Support 32.768 kHz crystal for battery-backed real-time clock operation |
| NRST | Active-low reset | Asynchronous reset input with internal pull-up; accepts external push-button or supervisor IC assertion |
| BOOT0 | Boot mode select | High at reset enables system memory bootloader; used for in-field firmware recovery via USART |
Key Features
| Feature | Design Value |
|---|---|
| Flexible Static Memory Controller (FSMC) | Direct interface to external NOR/PSRAM/CF devices - eliminates need for external address/data bus logic in HMI or data-logging designs |
| Motor Control Timers | Two 16-bit advanced-control timers with complementary outputs, dead-time insertion, and emergency stop - enables safe, high-efficiency BLDC/PMSM commutation |
| Temperature Sensor | Integrated calibrated sensor with ±1.5°C accuracy - provides on-die thermal monitoring for overtemperature protection without external components |
| Serial Wire Debug (SWD) | 2-pin debug interface replacing JTAG - reduces PCB footprint and simplifies production programming and field diagnostics |
| Embedded Trace Macrocell (ETM) | Real-time instruction trace via SWO pin - enables non-intrusive code profiling and timing analysis during development |
Applications
| Industrial Motor Drive | USB-Capable Data Logger |
|---|---|
Use Scenario: Closed-loop control of 3-phase BLDC motors in HVAC blowers or conveyor systems. IC Role / Device Role / Timing Role: Primary controller executing FOC algorithm, generating PWM with dead-time, reading encoder feedback, and managing CAN-based supervisory commands. Use Value: Integrated motor timers and 3× ADCs allow simultaneous current sensing and position capture within one chip, reducing BOM cost and board area. | Use Scenario: Field-deployed environmental monitor collecting temperature, humidity, and pressure data, then uploading via USB mass storage class. IC Role / Device Role / Timing Role: Host MCU managing sensor I²C reads, SDIO-based microSD logging, and USB device enumeration with built-in PHY. Use Value: On-chip USB 2.0 FS eliminates external transceiver; 256 KB Flash stores both firmware and FAT32 filesystem code. |
| Automotive Body Control Module | Smart Home Gateway |
Use Scenario: Centralized lighting, window lift, and door lock control in entry-level vehicles using CAN backbone. IC Role / Device Role / Timing Role: CAN node processor receiving LIN/UART commands from switches and driving relays/LED drivers via GPIO and PWM. Use Value: Dual CAN controllers support redundant communication paths; 100 I/Os accommodate diverse actuator interfaces without glue logic. | Use Scenario: Zigbee/Z-Wave-to-WiFi bridge aggregating smart plug and sensor data before forwarding to cloud via Ethernet or Wi-Fi module. IC Role / Device Role / Timing Role: Protocol translation hub with UART-to-SPI bridging, real-time scheduling, and secure boot verification. Use Value: 48 KB SRAM buffers concurrent protocol stacks; USB DFU enables remote firmware updates without JTAG access. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F103ZET6 | 512 KB Flash, 64 KB SRAM, LQFP144 (144-pin) | Higher memory capacity and I/O count for larger GUI or multi-protocol gateway designs | Select when firmware exceeds 256 KB or >100 GPIOs required |
| STM32F103RET6 | 512 KB Flash, 64 KB SRAM, LQFP64 (64-pin) | Same memory but reduced pin count and peripheral availability (no FSMC, fewer timers/ADC channels) | Select for cost-sensitive, space-constrained applications where USB+CAN+basic peripherals suffice |
Compared with STM32F103VCT6TR, the ZET6 offers scalability for feature-rich systems requiring more memory and I/O, while the RET6 trades pin count and peripheral depth for lower cost and smaller footprint-making the VCT6TR optimal for balanced industrial control where 100 pins, 256 KB Flash, and full peripheral set are required.
Availability
STM32F103VCT6TR is available at Aetrix Electronics and suitable for industrial motor drives, USB-connected data loggers, and automotive body control modules requiring stable component supply across extended production cycles.
Supply support for STM32F103VCT6TR 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.
The STM32F1 series targets cost-sensitive, high-reliability embedded applications demanding rich analog integration, real-time responsiveness, and industrial-grade robustness-especially where USB, CAN, and motor control coexist.
FAQ
What is the operating voltage range for STM32F103VCT6TR?
The device operates from 2.0 V to 3.6 V for both core and I/O domains. It includes a programmable voltage detector (PVD) that triggers interrupts or resets when VDD drops below a user-configurable threshold-critical for brown-out detection in battery-powered or unregulated supply environments.
Does STM32F103VCT6TR support external memory expansion?
Yes-it integrates a Flexible Static Memory Controller (FSMC) supporting asynchronous/synchronous NOR, PSRAM, NAND, and CompactFlash devices. The controller maps external memory into the Cortex-M3 address space, enabling direct pointer access without software bit-banging or external glue logic.
How many USB endpoints does the integrated USB 2.0 FS interface support?
The USB peripheral supports 8 bidirectional endpoints (EP0–EP7), including control, interrupt, bulk, and isochronous transfer types. Endpoint configuration is fully programmable in firmware, allowing custom class implementations such as HID, CDC ACM, or vendor-specific protocols without external USB controller ICs.
Is STM32F103VCT6TR qualified for automotive applications?
No-it is specified for industrial temperature range (–40°C to +85°C) and not AEC-Q100 qualified. For automotive use, ST recommends the pin-compatible STM32F103x8/xB variants marked "-A" (e.g., STM32F103VBT6A) which undergo additional stress testing and screening per automotive reliability standards.
STM32F103VCT6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-LQFP
- Series:
- STM32F1
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- 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:
- 80
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 48K 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:
STM32F103VCT6TR FAQ
1.How can I place an order for STM32F103VCT6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F103VCT6TR 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 STM32F103VCT6TR reliable?
The price and inventory of STM32F103VCT6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F103VCT6TR is usually 5 days.
3.What payment methods are accepted for STM32F103VCT6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F103VCT6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F103VCT6TR?
STM32F103VCT6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F103VCT6TR 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 STM32F103VCT6TR?
For technical support, including STM32F103VCT6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F103VCT6TR requirements.
6.How does Aetrix verify that STM32F103VCT6TR is sourced from the original manufacturer or authorized distributors?
All STM32F103VCT6TR 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 STM32F103VCT6TR meets industry standards.
7.What is the process for return or replacement of STM32F103VCT6TR?
All STM32F103VCT6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F103VCT6TR, 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 STM32F103VCT6TR part is unused and in its original packaging.
Return procedure for STM32F103VCT6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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