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STMicroelectronics STM32F103ZET6TR
- Part No.:
- STM32F103ZET6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
STM32F103ZET6TR.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,281
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Product details
Overview
STM32F103ZET6TR 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 triple 12-bit ADCs with 21 channels - deployed in industrial motor control, PLC I/O modules, and USB-CAN bridge gateways.
For engineers reviewing the STM32F103ZET6TR datasheet, STM32F103ZET6TR pinout, STM32F103ZET6TR application, or STM32F103ZET6TR equivalent, key selection criteria include Flash/SRAM capacity, LQFP144 package compatibility, 72 MHz CPU clock with zero-wait-state execution, and integrated USB/CAN dual-protocol support for real-time embedded connectivity.
Technical Context
The device implements an Arm Cortex-M3 core with Harvard architecture, single-cycle multiply and hardware divide, and nested vectored interrupt controller (NVIC) supporting up to 80 maskable interrupts. It integrates a flexible static memory controller (FSMC) with four chip selects for NOR/PSRAM/NAND expansion and parallel LCD interface (8080/6800 modes).
Clock system includes dual oscillators (4–16 MHz HSE + 32.768 kHz LSE), factory-trimmed 8 MHz HSI, and PLL with programmable multiplication factor (2–16×). Power management supports Sleep, Stop, and Standby modes with VBAT-backed RTC and backup registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3, 72 MHz max frequency, 1.25 DMIPS/MHz performance at 0 wait states |
| Flash Memory | 512 KB on-chip Flash with ECC, enabling robust firmware storage and over-the-air update capability |
| SRAM | 64 KB general-purpose SRAM, including 16 KB CCM (core-coupled memory) for time-critical data |
| Analog Peripherals | Three 12-bit ADCs (21 channels total), two 12-bit DACs, integrated temperature sensor, and sample-and-hold |
| Communication Interfaces | USB 2.0 FS, CAN 2.0B, 5× USART, 3× SPI (2 with I2S), 2× I2C, SDIO, and FSMC for external memory expansion |
| Timers | 11 timers: 4× general-purpose 16-bit, 2× motor-control PWM with dead-time generation, 2× watchdogs, SysTick, and 2× basic timers for DAC triggering |
| I/O Pins | 112 GPIO pins (5 V-tolerant on most), all mappable to 16 external interrupt lines, supporting fast toggle and event capture |
| Supply Range | 2.0–3.6 V operation with POR/PDR and programmable voltage detector (PVD) for supply monitoring |
Pinout & Package
LQFP144 (20 × 20 mm, 0.5 mm pitch) package with exposed thermal pad; 144-pin quad flat leaded configuration optimized for industrial PCB assembly and thermal dissipation in motor drive and gateway applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 2.0–3.6 V analog/digital supply domains with separate VDDA/VSSA for ADC/DAC reference stability |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | 112 configurable GPIOs supporting alternate functions (USART, SPI, CAN, USB, TIM), all 5 V-tolerant except ADC inputs |
| OSC_IN / OSC_OUT | External crystal oscillator input/output | Supports 4–16 MHz quartz crystal for precise system timing; optional internal 8 MHz RC for cost-sensitive boot |
| USB_DP / USB_DM | USB 2.0 full-speed differential pair | Integrated transceiver with internal pull-up; requires no external PHY for standard USB device enumeration |
| CAN_RX / CAN_TX | CAN 2.0B bus interface | Dedicated differential signaling pins compatible with ISO 11898-1; supports bit rates up to 1 Mbit/s |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; accepts external push-button or supervisor IC assertion |
| VREF+ | Analog reference voltage input | Optional external 2.4–3.6 V reference for ADC/DAC precision; defaults to VDDA if unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Core Performance | 72 MHz Cortex-M3 with single-cycle multiply/hardware divide enables deterministic real-time control loops in motor drives |
| Memory Architecture | 512 KB Flash + 64 KB SRAM + 16 KB CCM RAM allows complex protocol stacks (USB + CAN + TCP/IP) and large lookup tables |
| ADC System | Triple synchronous sampling across 21 channels with temperature sensor enables multi-axis current/voltage sensing in inverters |
| USB & CAN Integration | On-die USB FS transceiver and CAN 2.0B controller eliminate external PHYs, reducing BOM count and board space in fieldbus gateways |
| Low-Power Operation | Stop mode current < 2 µA with RTC running on VBAT enables battery-backed logging in remote I/O nodes |
| Robust I/O | 5 V-tolerant GPIOs simplify level-shifting in mixed-voltage systems (e.g., interfacing with 5 V sensors or legacy RS-232 transceivers) |
Applications
| Industrial Motor Control | Programmable Logic Controller (PLC) I/O Module |
|---|---|
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase BLDC/PMSM motors in HVAC compressors and CNC spindles. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, ADC sampling at 1 µs resolution, PWM generation with 72 MHz timer precision and dead-time insertion. Use Value: Integrated triple ADCs enable simultaneous current sampling; 512 KB Flash stores motor profile libraries and safety firmware (IEC 61800-5-2). | Use Scenario: Modular digital I/O expansion unit with isolated inputs/outputs, communicating via CANopen or Modbus RTU over CAN. IC Role / Device Role / Timing Role: Protocol gateway managing CAN bus arbitration, UART-to-CAN bridging, and local GPIO scanning at 1 ms intervals. Use Value: Dual CAN/USB interfaces allow firmware updates via USB while maintaining real-time CAN fieldbus operation without interruption. |
| USB-CAN Bridge Gateway | Smart Energy Metering Interface |
Use Scenario: PC-connected diagnostic tool converting USB CDC ACM commands into CAN frames for automotive ECU reprogramming and diagnostics (UDS). IC Role / Device Role / Timing Role: USB device endpoint handling CDC class descriptors and CAN controller managing bit timing, error framing, and message buffering. Use Value: On-chip USB transceiver eliminates external PHY; 112 GPIOs support LED status indicators and DIP-switch configuration without external logic. | Use Scenario: Two-way communication interface between utility meter ASICs (SPI/I2C) and AMI concentrator via RF or PLC link using embedded protocol stack. IC Role / Device Role / Timing Role: Secure data aggregator with AES acceleration (via DMA-linked peripherals), RTC timestamping, and tamper-detection GPIO monitoring. Use Value: 64 KB SRAM buffers encrypted metering data; VBAT-backed RTC ensures accurate billing timestamps during mains outage. |
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, but only 80 GPIOs and no FSMC interface | Suitable for compact designs where external memory expansion is unnecessary and pin count is constrained | Select when board space limits LQFP144 use and FSMC/NOR interface is not required |
| STM32F407VGT6 | Cortex-M4F core, 168 MHz, FPU, 1 MB Flash, 192 KB SRAM, enhanced peripheral set (Ethernet, FMC, more timers) | Targeted at higher-performance applications requiring floating-point math, DSP filtering, or Ethernet connectivity | Choose when migrating from F103 for increased compute headroom or advanced peripherals beyond USB/CAN |
Compared with STM32F103VET6, the ZET6 offers 32 additional GPIOs and FSMC for external memory - critical for HMI or gateway buffering; versus STM32F407VGT6, it trades raw performance for lower cost, power, and proven qualification in industrial temperature ranges.
Availability
STM32F103ZET6TR is available at Aetrix Electronics and suitable for industrial motor control, PLC I/O modules, and USB-CAN bridge gateways requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for STM32F103ZET6TR 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 management ICs, sensors, and analog devices for industrial, automotive, and consumer markets.
The STM32F103 product line delivers high-performance, cost-optimized Cortex-M3 MCUs targeting industrial automation, motor control, and connectivity gateways - emphasizing integration, reliability, and broad ecosystem support.
FAQ
What is the maximum operating temperature range for STM32F103ZET6TR?
The STM32F103ZET6TR is rated for industrial temperature range: –40 °C to +85 °C ambient, validated per JEDEC JESD22-A104. Thermal performance is specified with LQFP144 package and 4-layer PCB layout per ST's AN2834 guidelines; junction temperature must remain below 125 °C under continuous 72 MHz operation with active peripherals.
Does STM32F103ZET6TR support USB device HID class out of the box?
Yes - the integrated USB 2.0 full-speed peripheral supports HID class via ST's USB library (UM0424) and HAL drivers. Firmware can implement keyboard/mouse/report descriptor-based HID devices without external PHY; USB clock is derived from PLL (48 MHz), and endpoints are configured in software with descriptor tables stored in Flash.
How many independent CAN buses does STM32F103ZET6TR support?
The STM32F103ZET6TR integrates one CAN 2.0B controller with two dedicated pins (CAN_RX and CAN_TX), supporting bit rates up to 1 Mbit/s. It does not include dual CAN controllers; multi-bus applications require external CAN transceivers sharing the same controller or migration to STM32F105/F107 series.
Is the 512 KB Flash memory organized as a single block or segmented?
The 512 KB Flash is organized in 256 × 2 KB pages, enabling granular erase operations. It supports bank swapping for bootloader/firmware dual-bank updates, and read-while-write (RWW) is not supported - Flash programming requires CPU stall during page erase/write cycles per RM0008 specification.
STM32F103ZET6TR 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:
- 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 21x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F103ZET6TR FAQ
1.How can I place an order for STM32F103ZET6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F103ZET6TR 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 STM32F103ZET6TR reliable?
The price and inventory of STM32F103ZET6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F103ZET6TR is usually 5 days.
3.What payment methods are accepted for STM32F103ZET6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F103ZET6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F103ZET6TR?
STM32F103ZET6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F103ZET6TR 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 STM32F103ZET6TR?
For technical support, including STM32F103ZET6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F103ZET6TR requirements.
6.How does Aetrix verify that STM32F103ZET6TR is sourced from the original manufacturer or authorized distributors?
All STM32F103ZET6TR 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 STM32F103ZET6TR meets industry standards.
7.What is the process for return or replacement of STM32F103ZET6TR?
All STM32F103ZET6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F103ZET6TR, 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 STM32F103ZET6TR part is unused and in its original packaging.
Return procedure for STM32F103ZET6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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