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HomeProductsIntegrated Circuits (ICs)Embedded - MicrocontrollersSTM32F732VET6
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STM32F732VET6 - STMicroelectronics

Manufacturer Part Number
STM32F732VET6
Manufacturer
STMicroelectronics
Allelco Part Number
98D-STM32F732VET6
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
37,664 pcs available, New & Original
Parts Description
IC MCU 32BIT 512KB FLASH 100LQFP
Package
100-LQFP (14x14)
Data sheet
STM32F732VET6.pdf

PCN Assembly/Origin

STM32 15/Nov/2019.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 37664
  • Unit Price: $9.14
  • Subtotal: $0.00

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The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

STM32F732VET6 Tech Specifications
STMicroelectronics - STM32F732VET6 technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics - STM32F732VET6

Product Attribute Attribute Value
Manufacturer STMicroelectronics
Voltage - Supply (Vcc/Vdd) 1.7V ~ 3.6V
Supplier Device Package 100-LQFP (14x14)
Speed 216MHz
Series STM32F7
RAM Size 256K x 8
Program Memory Type FLASH
Program Memory Size 512KB (512K x 8)
Peripherals Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
Package / Case 100-LQFP
Package Tray
Product Attribute Attribute Value
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Number of I/O 82
Mounting Type Surface Mount
EEPROM Size -
Data Converters A/D 24x12b; D/A 2x12b
Core Size 32-Bit Single-Core
Core Processor ARM® Cortex®-M7
Connectivity CANbus, EBI/EMI, I²C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, UART/USART, USB
Base Product Number STM32F732

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN 5A992C
HTSUS 8542.31.0001

Frequently Asked Questions(FAQ)

How does the STM32F732VET6 compare to other STM32F7 series microcontrollers in terms of core performance and memory configuration?
The STM32F732VET6 features an ARM® Cortex®-M7 core running at up to 216MHz, which is among the highest clock speeds in the STM32F7 family. It provides 512KB of embedded Flash memory and 256KB of RAM, making it suitable for applications requiring substantial code storage and data processing without external memory. While some F7 variants offer larger memory footprints (e.g., up to 2MB Flash), the F732VET6 balances high performance with moderate resource allocation, making it ideal for cost-sensitive designs that still demand floating-point and DSP capabilities.
What are the key trade-offs when selecting the STM32F732VET6 for a real-time control application involving CANbus and USB connectivity?
The STM32F732VET6 integrates multiple communication interfaces including dual CAN controllers and full-speed USB 2.0 OTG, which supports complex industrial and embedded networking. However, these peripherals consume significant power and require careful PCB layout due to high-speed signal integrity demands. Additionally, while the internal oscillator ensures operation without external crystals, achieving precise timing over temperature may necessitate an external crystal for time-critical protocols like CAN or USB. This trade-off between integration and timing accuracy must be evaluated based on system requirements.
Can the STM32F732VET6 support dynamic memory expansion through QSPI, and how does this affect design complexity compared to using internal Flash exclusively?
Yes, the STM32F732VET6 includes a Quad-SPI (QSPI) interface enabling connection to external serial Flash or SRAM for expanded memory capacity. Using QSPI allows access beyond the 512KB internal Flash but introduces software overhead for memory management and potential latency penalties during frequent accesses. Compared to pure internal memory usage, QSPI-based expansion increases PCB layer count, adds component cost, and requires careful handling of cache coherency—especially important when mixing code execution from external memory versus internal Flash.
How should power supply noise be managed when operating the STM32F732VET6 near its minimum voltage of 1.7V?
Operating near the 1.7V lower limit of the STM32F732VET6’s supply range (1.7V–3.6V) increases sensitivity to voltage drops caused by current transients or poor decoupling. To maintain stable operation, a low-ESR ceramic capacitor (≥10µF) should be placed close to the VDD pins, along with a 0.1µF bypass capacitor per power pin. Additionally, ensure minimal trace inductance between the regulator output and MCU package leads. Failure to do so risks triggering brown-out reset events or corrupting flash writes during high-current bursts from peripherals like DMA-driven UART transfers.
Is the internal oscillator of the STM32F732VET6 sufficient for applications requiring IEEE 1588 precision time protocol (PTP)?
No, the internal oscillator of the STM32F732VET6 has limited frequency stability (±2% typical over temperature), which is inadequate for PTP synchronization requiring sub-microsecond accuracy. For such applications, an external high-stability crystal (typically ±25 ppm or better) must be used in conjunction with the microcontroller’s Time Stamp Unit (TSU). Even then, software compensation and hardware timestamping features must be leveraged to achieve acceptable jitter performance.
What considerations apply when routing high-speed signals on a 4-layer PCB with the STM32F732VET6 mounted in a 100-LQFP package?
The STM32F732VET6’s dense 100-pin LQFP (14x14 mm) layout demands strict signal integrity practices on 4-layer PCBs. High-speed traces such as those carrying SPI, QSPI, or USB differential pairs must be length-matched, impedance-controlled (typically 50Ω single-ended, 100Ω differential), and routed adjacent to solid ground planes to minimize crosstalk. Avoid routing critical signals near the edge of the board or across split planes. Given the 216MHz core speed and peripheral switching rates, even minor stubs or vias can cause reflections affecting timing margins.
How does the STM32F732VET6 handle simultaneous use of its two DAC channels and 24 analog inputs without degrading ADC performance?
The STM32F732VET6 features two 12-bit DACs and a 24-channel 12-bit SAR ADC sharing the same analog input multiplexer. Simultaneous use of both DACs and multiple ADC channels increases sampling load and introduces potential interference if not managed properly. To avoid degradation, stagger sampling sequences, enable interleaved mode only when necessary, and use independent reference voltages if possible. Also, ensure adequate settling time between channel switches—typically 1–2 µs per channel—to maintain conversion accuracy above 11 effective bits under full utilization.
When replacing an older STM32F4-based design with the STM32F732VET6, what software migration challenges should engineers anticipate?
Migrating from an STM32F4 to the STM32F732VET6 involves more than just recompiling code due to architectural differences. Key changes include updated NVIC priorities, modified clock tree structure (with higher base frequencies), and enhanced DMA stream configurations. The F7 also introduces new peripherals like SAI for audio and improved CRC hardware, but deprecates certain legacy functions present in F4. Engineers should verify timing-critical routines against the F7’s pipeline behavior, as branch mispredictions now incur greater penalty due to deeper instruction pipeline.
What impact does the STM32F732VET6’s Moisture Sensitivity Level 3 have on assembly and shelf life management?
As an MSL 3 device (168-hour floor life at ≤30°C/60% RH), the STM32F732VET6 requires controlled storage conditions to prevent moisture-induced popcorning during reflow soldering. Once removed from sealed packaging, it should be stored in dry cabinets or desiccated environments. If exposed beyond 168 hours without baking, thermal stress during peak reflow temperatures (>220°C) can fracture internal bonds. Proper handling includes using humidity indicator cards in trays and tracking open time via FIFO rotation to ensure compliance with JEDEC J-STD-033 standards.
How does the presence of a watchdog timer (WDT) and power-on reset (POR) influence fault recovery strategies in safety-critical systems using the STM32F732VET6?
The STM32F732VET6 incorporates independent windowed watchdog (IWDG) and programmable window WWDG, plus power-on reset and brown-out detection (BOR). In safety-critical applications, these mechanisms help detect software hangs or voltage anomalies. However, reliance solely on hardware watchdogs is insufficient; application-level heartbeat monitoring and stack overflow protection are also essential. The BOR threshold (typically 1.8V) must align with system reliability targets—lower thresholds improve resilience but reduce usable headroom near minimum operating voltage.
Can the STM32F732VET6 directly drive high-current loads without additional buffering, given its maximum GPIO current sourcing capability?
No, each GPIO pin on the STM32F732VET6 can source or sink only up to 25mA, with a total package limit of 150mA. Driving high-current loads like LEDs, relays, or motor drivers requires external buffers such as MOSFETs or transistors. Attempting to exceed these limits risks permanent damage to the pin or erratic behavior. Instead, use dedicated driver ICs or optocouplers for isolation and current amplification, ensuring safe operation within absolute maximum ratings defined in the datasheet.
What role does the DMA controller play in optimizing performance when using the STM32F732VET6 with peripherals like UART or SPI?
The STM32F732VET6 integrates advanced DMA controllers capable of offloading data transfers from CPU-intensive tasks. For example, during UART reception at 1 Mbps, DMA can move incoming bytes directly to RAM without CPU intervention, reducing interrupt frequency and freeing cycles for application logic. Similarly, SPI transfers with large block sizes benefit from burst-mode DMA, minimizing latency and CPU load. Proper configuration of circular buffers and double-buffering further enhances throughput in streaming scenarios.
How does the STM32F732VET6 support secure boot and firmware updates, and what limitations exist compared to higher-end F7 variants?
The STM32F732VET6 supports basic read/write protection via RDP levels and option bytes, and can implement secure boot using the built-in cryptographic accelerators (when enabled). However, unlike larger F7 devices with TrustZone or HSM (Hardware Security Module), the F732 lacks dedicated secure enclaves. Firmware updates over USB or CAN must therefore rely on software-based signature verification using AES-128/SHA-256 engines. This increases development effort and potential attack surface unless combined with hardware tamper detection circuits.
What are the implications of using the STM32F732VET6 at the upper end of its operating temperature range (-40°C to +85°C)?
At +85°C, the STM32F732VET6 experiences increased leakage currents and reduced noise margins due to semiconductor physics effects. Clock drift in the internal RC oscillator becomes more pronounced, potentially affecting timing-sensitive protocols. Flash programming success rates decrease slightly, requiring extended erase/program times. Thermal derating of I/O drive strength may also occur. Designers should validate worst-case scenarios under full-load conditions and consider environmental controls or alternative MCUs if tighter temperature specifications are required.
How should developers manage code size constraints when using the STM32F732VET6’s 512KB Flash effectively?
With exactly 512KB of user-accessible Flash (after bootloader and option bytes), developers must optimize both code and data usage. Techniques include using compiler optimizations (-Os), removing unused libraries, compressing lookup tables, and leveraging external QSPI memory for non-critical assets. Linker scripts should carefully partition sections to avoid overflow, and runtime checks for stack usage help prevent corruption. Tools like STM32CubeIDE’s memory map analysis provide visibility into actual consumption versus theoretical limits.
What distinguishes the STM32F732VET6’s USB OTG implementation from basic USB device-only operation?
The STM32F732VET6 supports USB OTG (On-The-Go), allowing it to function either as a host (connecting to peripherals like cameras or flash drives) or as a device (connected to PCs). This flexibility requires additional software stack support (e.g., USB Host FS/HCD and Device CDC/MSC classes) and hardware considerations such as VBUS sensing and ID pin management. Compared to fixed-role designs, OTG adds complexity but enables versatile connectivity in portable or hub-oriented applications.

Parts with Similar Specifications

The three parts on the right have similar specifications to STMicroelectronics STM32F732VET6

Product Attribute STM32F732VET6TR STM32F732ZET6 STM32F732IET6 STM32F732RET6
Part Number STM32F732VET6TR STM32F732ZET6 STM32F732IET6 STM32F732RET6
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Base Product Number - DAC34H84 MAX500 ADS62P42
RAM Size - - - -
Peripherals - - - -
Series - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Program Memory Size - - - -
Speed - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Program Memory Type - - - -
Number of I/O - - - -
Connectivity - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Voltage - Supply (Vcc/Vdd) - - - -
Core Size - - - -
Core Processor - - - -
EEPROM Size - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Oscillator Type - - - -
Data Converters - - - -

STM32F732VET6 Datasheet PDF

Download STM32F732VET6 pdf datasheets and STMicroelectronics documentation for STM32F732VET6 - STMicroelectronics.

PCN Packaging
Material Barrier Bag 17/Dec/2020.pdf
PCN Assembly/Origin
STM32 15/Nov/2019.pdf
HTML Datasheet
STM32F7 Series Brochure.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

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STMicroelectronics

STM32F732VET6

STMicroelectronics
98D-STM32F732VET6

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