STM32F103VET7 - 72MHz 512KB Cortex-M3 MCU | STMicroelectronics
MPN: STM32F103VET7 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $14.0616 | $14.06 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
STM32F103VET7 Overview
A microcontroller is a programmable semiconductor system that executes firmware, reads sensor data, controls outputs, and coordinates connected peripherals. The STM32F103VET7 belongs to the STM32F1 performance-line family and provides substantially more integration than a basic eight- or sixteen-bit controller. Its Cortex-M3 architecture supports efficient interrupt-driven control, while Flash storage provides room for application code, configuration data, and boot logic.
The verified feature set includes 512 KB Flash, 13 communication interfaces, three ADCs, 11 timers, USB, and CAN. These resources make the device suitable for industrial controllers, USB-connected instruments, CAN network nodes, and motor-control systems. Its 72 MHz maximum operating frequency provides computational headroom for protocol handling, signal sampling, and supervisory control tasks.
The STM32F103xE high-density device family uses an Arm Cortex-M3 RISC core and combines communication, analog, and timing resources in one package. USB and CAN support can reduce the need for separate interface controllers, while the ADC and timer blocks can acquire and process external signals. Exact peripheral ratings, voltage limits, memory-map details, and electrical characteristics must be confirmed in the manufacturer datasheet.
Typical designs include USB data-acquisition equipment, CAN-based industrial modules, motor-control boards, communication gateways, and compact embedded instruments. Firmware reuse is practical within appropriately qualified STM32 variants, but clock, peripheral, bootloader, supply, and qualification requirements still need verification before substitution.
When laying out the PCB, preserve the manufacturer's 100-LQFP land pattern, power decoupling, clock routing, reset design, and exposed thermal requirements. The LQFP package provides accessible leads for inspection and rework, while the 14 mm by 14 mm body supports compact industrial controller designs.
This page consolidates manufacturer specifications, distributor availability, sourcing data, and replacement constraints into an engineering reference. It also distinguishes verified facts from missing electrical details so designers can assess fit before beginning layout or firmware deployment.
Drop-in alternatives for STM32F103VET7 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with STM32F103VET7 (same form factor and footprint) — differing in Package, RoHS Status, Core, Core Architecture, Flash Memory.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
STM32F103VET6
✅ Drop-In✓ In Stock
$3.85 / Unit
View Datasheet →GD32F103VET6
✅ Drop-In📋 Reference alternative (not in catalog)
GD32F103VET7
✅ Drop-In📋 Reference alternative (not in catalog)
STM32F103VGT7
✅ Drop-In✓ In Stock
$8.6 / Unit
View Datasheet →GD32F103VET6
✅ Drop-In📋 Reference alternative (not in catalog)
STM32F103VET7 Maximum Ratings & Electrical Characteristics
| Product Type | 32-bit ARM Cortex-M3 microcontroller |
| Series | STM32F1 high-density performance line |
| Maximum CPU Frequency | 72 MHz |
| Flash Memory | 512 KB |
| Flash Organization | 512K x 8 |
| Core Architecture | ARM Cortex-M3 32-bit RISC |
| ADC Count | 3 |
| Timer Count | 11 |
| Communication Interface Count | 13 |
| USB Support | Yes |
| CAN Support | Yes |
| Package | 100-LQFP, 14 mm x 14 mm |
| Mounting Type | Surface mount |
| RoHS Status | unknown |
| REACH Status | unknown |
STM32F103VET7 100-lqfp, 14 mm x 14 mm Pin Configuration Guide
Pin configuration for STM32F103VET7 (100-lqfp, 14 mm x 14 mm package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for STM32F103VET7.
Refer to the datasheet for full pin configuration.
Typical Applications
STM32F103VET7 is suitable for 6 applications: USB Data-Acquisition Controller, CAN-Based Industrial Control Module, Compact Motor-Control System, USB-CAN Communication Gateway, Industrial Signal-Conditioning Instrument, Secure Networked Embedded Controller.
USB Data-Acquisition Controller
STM32F103VET7 fits a USB data-acquisition controller because the manufacturer identifies USB, three ADCs, and 11 timers on the STM32F103 high-density family. The 72 MHz Cortex-M3 core can coordinate sampling control, data buffering, USB transmission, and host-side status reporting. Its 512 KB Flash also provides room for protocol handling, calibration tables, and application firmware. A practical design would allocate an ADC input to each analog channel, use a timer-triggered conversion sequence, and transfer completed records over USB. Verify the actual ADC resolution, conversion time, USB electrical requirements, and pin multiplexing in the manufacturer datasheet because those values are not present in the supplied snippets.
Recommended
CAN-Based Industrial Control Module
STM32F103VET7 is a suitable candidate for an industrial CAN node because CAN and 13 communication interfaces are verified features of the STM32F103 family. The 72 MHz core can handle message handling alongside supervisory logic, while the 11 timers support periodic scheduling, input capture, or motor-related timing. A practical module would place the MCU beside a qualified CAN transceiver, route the bus through a protected connector, and use timer-driven tasks for periodic status reporting. The supplied data does not verify transceiver MPNs, bus termination requirements, or isolation details, so those engineering requirements must be added from the complete datasheet and selected external components.
Recommended
Compact Motor-Control System
STM32F103VET7 can serve as the supervisory controller in a compact motor-control system because its 72 MHz Cortex-M3 core and 11 timers provide a foundation for timing, sequencing, and control-loop execution. The three ADCs can support analog feedback from current, position, or temperature sensors, while CAN or another verified communication interface can distribute commands and diagnostics. The MCU would typically generate timer events, sample feedback through ADC channels, apply control logic, and communicate operating state to a host. Exact PWM frequency, ADC bandwidth, timer channel allocation, and pin multiplexing were not supplied, so the complete STM32F103xE datasheet and motor-driver selection are mandatory before implementation.
Recommended
USB-CAN Communication Gateway
STM32F103VET7 is well matched to a USB-CAN gateway because both USB and CAN are verified capabilities, allowing one microcontroller to bridge a computer interface and an embedded network. The 72 MHz core can frame messages, maintain protocol state, and service both communication paths without a separate bridge controller. The 100-LQFP package exposes enough leads for a mixed signal-and-communication design while remaining compatible with conventional leaded assembly. A real implementation still needs a qualified CAN transceiver, USB connector protection, proper bus termination, and firmware buffering. Those external details are not specified in the supplied data and must be selected from their respective datasheets.
Recommended
Industrial Signal-Conditioning Instrument
STM32F103VET7 is appropriate for an industrial signal-conditioning instrument that needs local control plus data transfer. The three ADCs support analog measurement, the 11 timers support sampling and periodic housekeeping, and the 13 communication interfaces provide options for connecting instruments or service ports. The 512 KB Flash is useful for configuration, calibration, filtering, and protocol code, while the 72 MHz core can combine acquisition scheduling with user-interface logic. The supplied sources do not specify ADC resolution, input impedance, sample rate, or electrical operating limits, so the complete manufacturer datasheet must define the analog front end and pin assignments before layout begins.
Recommended
Secure Networked Embedded Controller
STM32F103VET7 can be used as a networked embedded controller where USB, CAN, and multiple communication interfaces are required in a compact control product. The STM32F1 high-density family combines 512 KB Flash with a 72 MHz Cortex-M3 core, allowing protocol tasks and real-time supervisory functions to share one MCU. A gateway could collect local sensor or actuator status, validate commands, and forward selected data over CAN or USB. Security requirements such as authenticated boot, protected firmware, and cryptographic implementation are not specified by the supplied data; engineers should add a dedicated security element or validated software architecture when the application requires tamper resistance.
Recommended
Recommended Products Summary
Engineering reference data for STM32F103VET7 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32F103VET6 | GD32F103VET6 | GD32F103VET7 | STM32F103VGT7 |
|---|---|---|---|---|---|
| Package | 100-LQFP (14x14) | 100-LQFP (14x14) | 100-LQFP | 100-LQFP | 100-LQFP (14x14) |
| Brand | STMicroelectronics | STMicroelectronics | GigaDevice | GigaDevice | STMicroelectronics |
| CPU Core | Arm Cortex-M3, 32-bit RISC | Arm Cortex-M3, 32-bit RISC | Arm Cortex-M3 family | Arm Cortex-M3 family | Arm Cortex-M3 family |
Key Differentiators
- Exact STMicroelectronics STM32F103VE device identity (vs GD32F103VET7)
- Verified integrated communication and analog resources (vs STM32F103VGT7)
- High-density 512 KB Flash configuration (vs GD32F103VET6)
- 100-LQFP 14 mm by 14 mm package (vs STM32F103VET6)
Design Notes
Route the MCU supply pins using the manufacturer STM32F103xE recommended-decoupling layout and place the required bulk and local capacitors close to their associated pins. Keep the 72 MHz clock and communication circuits away from switching-node returns, and verify the exact voltage, decoupling, and current requirements in the official datasheet. Do not infer missing power values from the distributor snippets.
Preserve the exact 100-LQFP 14 mm by 14 mm land pattern and pin numbering from the STM32F103xE mechanical drawing. Keep USB, CAN, and analog traces short where possible, maintain controlled return paths, and separate high-current actuator routing from sensitive ADC and clock areas. The supplied data does not provide the full pin table, so the manufacturer package drawing must be used during library creation and PCB review.
Do not treat STM32F103VET6 as automatically interchangeable solely because it uses the STM32F103VE family name. The ordering suffix identifies a different grade, so compare the required temperature range, production status, and all electrical limits before release. Similarly, GD32F103 compatibility claims must be validated at the exact 100-LQFP MPN level rather than assumed from a family-level article.
For USB and CAN interfaces, follow the selected transceiver and connector recommendations for impedance-controlled routing, protection, grounding, and return-current continuity. These external interface details are not included in the supplied target snippets and therefore must be taken from the relevant transceiver, connector, and STM32F103xE datasheets. Validate signal integrity with the intended cable, connector, baud rate, and system grounding configuration.
Use the LQFP copper land pattern and board construction specified by STMicroelectronics to control junction temperature. Actual dissipation depends on CPU utilization, clock activity, supply voltage, and ambient temperature, none of which is quantified in the supplied data. Perform an application-specific thermal estimate using measured or datasheet-derived current and confirm the result against the device's maximum ratings before production.
Compliance Information
The supplied verified data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status for STM32F103VET7. These fields must be confirmed from the current manufacturer product documentation and supply-chain declarations.
