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STMicroelectronics STM32F103ZCT7TR
- Part No.:
- STM32F103ZCT7TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
STM32F103ZCT7TR.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:498
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Product details
Overview
STM32F103ZCT7TR 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 up to 21 channels - deployed in industrial motor control systems requiring real-time PWM generation, analog sensing, and fieldbus communication.
For engineers reviewing the STM32F103ZCT7TR datasheet, STM32F103ZCT7TR pinout, STM32F103ZCT7TR application, or STM32F103ZCT7TR equivalent, key selection criteria include Flash/SRAM capacity, 144-pin LQFP package compatibility, dual 12-bit DAC support, 72 MHz CPU clock with hardware division, and integrated FSMC for external memory expansion.
Technical Context
The device implements a tightly coupled Arm Cortex-M3 core with nested vectored interrupt controller (NVIC), supporting deterministic real-time response across 112 GPIOs mapped to 16 external interrupt vectors. Its memory subsystem integrates 512 KB on-chip Flash with error correction, 64 KB SRAM, and a flexible static memory controller (FSMC) supporting NOR, PSRAM, NAND, and CompactFlash interfaces.
Peripherals include two independent 12-bit DACs, three 12-bit ADCs with triple-sample-and-hold, four 16-bit general-purpose timers with quadrature encoder input, two motor-control PWM timers with dead-time insertion, and full-featured communication stacks: 5 USARTs (with LIN/IrDA/ISO7816), 3 SPIs (two with I2S), 2 I2C, USB 2.0 FS, CAN 2.0B, and SDIO.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3, 72 MHz max frequency - enables deterministic real-time execution of complex control algorithms with 1.25 DMIPS/MHz efficiency. |
| Flash Memory | 512 KB - sufficient for dual-bank firmware updates, bootloader + application partitioning, and large protocol stacks (e.g., USB CDC + CANopen). |
| SRAM | 64 KB - supports multiple DMA buffers, real-time FFT processing, and large TCP/IP or CAN FD message queues without external RAM. |
| ADC Resolution & Channels | 3 × 12-bit, up to 21 channels - allows simultaneous sampling of motor phase currents, DC bus voltage, temperature, and auxiliary sensors in servo drives. |
| DAC Outputs | 2 × 12-bit - provides precise analog reference generation for sensor calibration or programmable biasing in test equipment. |
| Communication Interfaces | USB 2.0 FS + CAN 2.0B + 5×USART + 3×SPI + 2×I2C - enables concurrent host connectivity, fieldbus interoperability, and peripheral bridging in embedded gateways. |
| Timer Resources | Up to 11 timers including 4×16-bit GP timers, 2×motor-control PWM timers with dead-time, and SysTick - supports multi-axis motion control with synchronized PWM and encoder feedback. |
Pinout & Package
LQFP144 package (20 × 20 mm, 0.5 mm pitch), RoHS-compliant, ECOPACK® certified - designed for industrial PCBs requiring thermal reliability, manual rework feasibility, and compatibility with standard SMT assembly lines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD/VSS (×10) | Power supply / Ground | Dedicated power/ground pairs per quadrant minimize noise coupling and ensure stable operation at 72 MHz under load. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | All 112 GPIOs are 5 V-tolerant and remappable to 16 EXTI lines - simplifies board layout and enables flexible signal routing in retrofit designs. |
| PA11/PA12 | USB DP/DM | Dedicated full-speed USB transceiver pins with internal pull-ups - eliminates need for external PHY or termination resistors in USB device mode. |
| PB8/PB9 | CAN RX/TX | Hardwired to bxCAN peripheral - enables direct connection to ISO 11898-compliant transceivers without signal inversion or level-shifting. |
| PC0–PC5 | ADC1_IN0–ADC1_IN5 | Analog input channels with shared sampling logic - supports synchronized multi-channel acquisition for motor current reconstruction. |
Key Features
| Feature | Design Value |
|---|---|
| Flexible Static Memory Controller (FSMC) | Supports NOR/PSRAM/NAND/CF with configurable timing - enables integration of external display frame buffers or data loggers without FPGA glue logic. |
| Motor Control Timers | Two 16-bit advanced-control timers with complementary outputs, dead-time insertion, and emergency stop - meets IEC 61800-5-2 functional safety requirements for drive enable/disable sequencing. |
| Temperature Sensor | Integrated calibrated sensor with ±1.5°C accuracy (0–100°C) - provides real-time die temperature monitoring for thermal derating in enclosed industrial enclosures. |
| CRC Calculation Unit | Hardware-accelerated CRC-32 generator - offloads checksum computation from CPU during firmware OTA updates or secure boot validation. |
| Serial Wire Debug (SWD) | 2-pin debug interface with trace capability - enables non-intrusive real-time variable inspection and code profiling in resource-constrained embedded applications. |
Applications
| Industrial Motor Drive | Programmable Logic Controller (PLC) I/O Module |
|---|---|
Use Scenario: Closed-loop control of 3-phase BLDC motors in HVAC compressors with field-oriented control (FOC). IC Role / Device Role / Timing Role: Primary MCU executing FOC algorithm, generating six-channel complementary PWM with dead-time, sampling current/voltage via ADC, and communicating status over CAN. Use Value: Integrated motor timers and 12-bit ADCs eliminate external timer ICs and precision op-amps, reducing BOM count by ≥4 components per axis. |
Use Scenario: Modular digital input/output expansion unit for DIN-rail mounted PLCs handling 16-channel discrete I/O with diagnostics. IC Role / Device Role / Timing Role: Central controller managing opto-isolated inputs, relay/SSR outputs, CAN-based backplane communication, and local USB configuration port. Use Value: 112 GPIOs and dual CAN/USB interfaces allow single-chip implementation of both fieldbus node and service interface - avoiding dual-MCU architecture. |
| USB-CAN Bridge Adapter | Smart Energy Meter Communication Hub |
Use Scenario: Field-deployable adapter converting PC USB commands to CAN frames for automotive ECU diagnostics and calibration. IC Role / Device Role / Timing Role: USB device endpoint handling CDC ACM class, CAN controller formatting ISO-TP packets, and DMA-managed bidirectional data flow. Use Value: On-chip USB PHY and bxCAN eliminate external transceivers and USB interface ICs - enabling sub-$15 BOM cost at volume. |
Use Scenario: AMI (Advanced Metering Infrastructure) concentrator aggregating data from RS-485-connected electricity/water meters via DLMS/COSEM stack. IC Role / Device Role / Timing Role: Dual-protocol gateway running FreeRTOS, managing UART-to-CAN translation, AES-128 encryption, and RTC-backed time-stamped logging to external NAND. Use Value: FSMC interface directly connects to NAND flash for secure firmware storage and meter data history - removing need for external memory controller. |
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 (100 pins), 512 KB Flash, 64 KB SRAM - lacks 12 additional GPIOs and 2 extra ADC channels vs. ZCT7TR. | Suitable for space-constrained designs where 112 I/Os and full ADC channel count are not required. | Select when PCB area is limited and peripheral count can be reduced without compromising core functionality. |
| STM32F407VGT6 | Cortex-M4F core, 168 MHz, FPU, 1 MB Flash, 192 KB SRAM - higher performance but incompatible pinout and voltage regulator requirements. | Required for floating-point intensive tasks (e.g., real-time spectral analysis) beyond M3 capabilities. | Choose only when migrating to FPU-dependent algorithms; not a drop-in replacement due to package and power architecture differences. |
Compared with STM32F103VET6, the ZCT7TR delivers 14 more GPIOs and expanded analog front-end for sensor-rich systems; versus STM32F407VGT6, it offers proven industrial qualification and lower system-level power consumption at the cost of floating-point throughput.
Availability
STM32F103ZCT7TR is available at Aetrix Electronics and suitable for industrial motor control, programmable logic controller (PLC) modules, USB-CAN bridge adapters, and smart energy meter communication hubs requiring stable component supply across extended product lifecycles.
Supply support for STM32F103ZCT7TR 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 broad industrial certification coverage.
This part belongs to the STM32F1 'Performance Line' product family, engineered for cost-sensitive industrial automation applications demanding robust real-time control, mixed-signal integration, and long-term supply assurance.
FAQ
What is the operating temperature range for STM32F103ZCT7TR?
The STM32F103ZCT7TR is rated for industrial temperature operation from –40 °C to +85 °C, validated per JEDEC JESD22-A104 and tested across full voltage (2.0–3.6 V) and frequency (up to 72 MHz) ranges - ensuring reliable startup and runtime behavior in uncontrolled cabinet environments.
Does STM32F103ZCT7TR support external memory expansion?
Yes - it integrates a Flexible Static Memory Controller (FSMC) with four chip-select outputs supporting asynchronous/synchronous NOR, PSRAM, NAND Flash, and CompactFlash devices. Timing parameters are fully configurable via registers, enabling direct interface to displays, data loggers, or FPGA co-processors without glue logic.
Is USB functionality available without external components?
Yes - the device includes an integrated USB 2.0 full-speed transceiver with internal pull-up resistors on D+ and dedicated USB-specific I/O pins (PA11/PA12). Only a USB connector and ESD protection diode are required for compliant device-mode operation per USB-IF specifications.
How many independent PWM outputs can STM32F103ZCT7TR generate simultaneously?
It supports up to 36 independent PWM outputs: four 16-bit general-purpose timers (each with up to 4 channels), two advanced motor-control timers (each with 6 complementary channels), and two basic timers driving DACs - all configurable with programmable dead-time, polarity, and synchronization triggers.
STM32F103ZCT7TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 144-LQFP
- 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:
- 112
- 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 21x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F103ZCT7TR FAQ
1.How can I place an order for STM32F103ZCT7TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F103ZCT7TR 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 STM32F103ZCT7TR reliable?
The price and inventory of STM32F103ZCT7TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F103ZCT7TR is usually 5 days.
3.What payment methods are accepted for STM32F103ZCT7TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F103ZCT7TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F103ZCT7TR?
STM32F103ZCT7TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F103ZCT7TR 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 STM32F103ZCT7TR?
For technical support, including STM32F103ZCT7TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F103ZCT7TR requirements.
6.How does Aetrix verify that STM32F103ZCT7TR is sourced from the original manufacturer or authorized distributors?
All STM32F103ZCT7TR 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 STM32F103ZCT7TR meets industry standards.
7.What is the process for return or replacement of STM32F103ZCT7TR?
All STM32F103ZCT7TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F103ZCT7TR, 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 STM32F103ZCT7TR part is unused and in its original packaging.
Return procedure for STM32F103ZCT7TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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