STM32F446VET7 - 180MHz Cortex-M4 MCU with 512KB Flash | STMicroelectronics
MPN: STM32F446VET7 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $10.0977 | $10.10 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
STM32F446VET7 Overview
A microcontroller is a programmable embedded-system component that integrates a processor core, memory, peripherals, and I/O into one device. The STM32 MCU family belongs to the semiconductor hierarchy: microcontroller -> embedded processor -> ARM Cortex-M processor -> STM32F4 series -> STM32F446 high-performance line. This MCU combines general-purpose control with dedicated digital signal processing and hardware FPU acceleration.
Verified headline features include an ARM Cortex-M4 core, 180 MHz maximum operating frequency, 225 DMIPS, and 512 KB of Flash. The integrated FPU accelerates floating-point calculations, while DSP instructions support filtering and transform workloads. Dual Quad SPI increases high-speed peripheral flexibility, and the listed SDRAM and audio interfaces make the device useful in applications that move data between memory, displays, sensors, and audio subsystems.
The STM32F446VET7 is positioned for industrial embedded control, high-speed communication, data acquisition, audio processing, and embedded user-interface systems. Its 100-LQFP package exposes substantially more I/O than small 32- or 64-pin packages, which helps when a design needs multiple buses, control signals, and communications peripherals. The available 512 KB Flash also provides room for application code, firmware, and boot logic without requiring the largest STM32F4 memory configuration.
Designers should verify voltage, memory, peripheral, pin, timing, and thermal details against the manufacturer datasheet before layout. In particular, mixed-signal, SDRAM, and high-speed communication designs require disciplined pin multiplexing, controlled impedance routing, decoupling, and grounding. Firmware replacement should also be validated because bootloader behavior, peripheral configuration, clock limits, and application code compatibility can vary even when the package is unchanged.
This page combines verified manufacturer and distributor facts with application guidance, package selection, sourcing information, and drop-in alternatives. Because the retrieved data does not include the complete electrical tables or a verified pin-to-pin substitute matrix, unavailable values remain marked for validation rather than being inferred.
Drop-in alternatives for STM32F446VET7 — 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 STM32F446VET7 (same form factor and footprint) — differing in Package, Flash Memory, Mounting Type, ADC, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
STM32F446VET7
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →STM32F446VET6
✅ Drop-In✓ In Stock
$3.6486 / Unit
View Datasheet →STM32F446VET7XXX
✅ Drop-In📋 Reference alternative (not in catalog)
STM32F407VET6TR
✅ Drop-In✓ In Stock
$3.4498 / Unit
View Datasheet →STM32F429VGT6
✅ Drop-In✓ In Stock
$10.85 / Unit
View Datasheet →STM32F446VET7 Maximum Ratings & Electrical Characteristics
| Product Type | 32-bit ARM Cortex-M4 microcontroller |
| Manufacturer | STMicroelectronics |
| Maximum CPU Frequency | 180 MHz |
| Core | ARM Cortex-M4 |
| Architecture | 32-bit RISC |
| Performance | 225 DMIPS |
| Flash Memory | 512 KB |
| Flash Organization | 512K x 8 |
| DSP Support | Yes |
| Floating-Point Unit | Yes |
| SPI Interfaces | Dual Quad SPI |
| SDRAM Interface | Supported |
| Audio Interfaces | Supported |
| Package | 100-LQFP 14 x 14 mm |
| Pin Count | 100 pins |
| Mounting Type | Surface mount |
STM32F446VET7 100-lqfp 14 x 14 mm Pin Configuration Guide
Pin configuration for STM32F446VET7 (100-lqfp 14 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 STM32F446VET7.
Refer to the datasheet for full pin configuration.
Typical Applications
STM32F446VET7 is suitable for 6 applications: Industrial Data Acquisition, High-Speed Communication Hub, Audio Signal Processing, Real-Time Control System, SDRAM-Based Graphical Embedded System, Sensor and Motor Interface Controller.
Industrial Data Acquisition
The STM32F446VET7 fits industrial acquisition systems that need a fast control core alongside multiple sensor and communication interfaces. Its 180 MHz Cortex-M4 core and 225 DMIPS performance provide substantial headroom for sampling coordination, filtering, buffer management, and real-time control. The 512 KB Flash supports embedded application code and protocol logic, while DSP instructions and the hardware FPU help accelerate arithmetic-heavy processing. The verified SDRAM and audio-interface capability can assist systems that need buffered data movement. Before finalizing the design, verify the exact peripheral mapping, ADC requirements, electrical limits, and package pin assignments in the manufacturer datasheet.
Recommended
High-Speed Communication Hub
The STM32F446VET7 is appropriate for communication hubs that need an ARM Cortex-M4 processor operating at 180 MHz with 225 DMIPS of advertised performance. Dual Quad SPI can support multiple serial peripherals when pin multiplexing and bus loading are designed correctly, while 512 KB Flash provides room for protocol stacks and configuration data. The SDRAM interface can assist designs that require external data buffering. The main engineering tradeoff is that verified material does not establish the complete peripheral configuration or timing envelope, so designers should check interrupt priorities, DMA requirements, signal integrity, and maximum interface rates in the official documentation.
Recommended
Audio Signal Processing
The STM32F446VET7 is a logical candidate for embedded audio processing because STMicroelectronics identifies DSP support, a hardware FPU, and audio interfaces in the STM32F446 line. At 180 MHz, the MCU can combine control tasks with digital filtering, sample handling, and protocol logic, subject to the detailed electrical and timing specifications. SDRAM support may be useful when audio buffers or other external memory are required. A practical design should separate analog and digital grounding where appropriate, keep sensitive audio paths away from noisy switching routes, and verify codec, clock, DMA, and pin-multiplexing requirements before layout.
Recommended
Real-Time Control System
The STM32F446VET7 can serve as the control processor in a real-time embedded system requiring deterministic interrupt handling and efficient arithmetic. The Cortex-M4 architecture, 180 MHz maximum frequency, 225 DMIPS, DSP instructions, and FPU support provide a strong processing foundation for motor, positioning, or instrumentation control. Its 100-LQFP package offers a large pin count for control outputs, sensor inputs, communications, and external memory. Design work should still validate timer features, ADC performance, voltage limits, thermal conditions, and peripheral availability because those values are not present in the retrieved summary.
Recommended
SDRAM-Based Graphical Embedded System
The STM32F446VET7 is suited to embedded systems that combine control processing with external-memory buffering. The verified SDRAM interface can support data-intensive workflows such as display buffering, data logging, or communications staging, while the Cortex-M4 core supplies 180 MHz processing and DSP/FPU resources. The 512 KB Flash is intended for firmware and embedded application code, not unrestricted frame-buffer storage, so external memory capacity and bus performance must be evaluated separately. Layout should follow controlled-impedance and return-path practices for SDRAM, and software should include initialization, refresh, and fault-recovery sequences appropriate to the selected memory.
Recommended
Sensor and Motor Interface Controller
The STM32F446VET7 can act as a central controller in systems combining sensor acquisition, motor control, and communications. The 180 MHz Cortex-M4 core and hardware FPU support faster control-loop calculations and signal conditioning, while the 100-LQFP package provides a generous I/O budget for sensors, drivers, and communication peripherals. The device is especially attractive when the same board must perform acquisition, local computation, and protocol management. Exact PWM, ADC, timer, pin-mux, and electrical requirements are not included in the retrieved data, so they must be confirmed from the manufacturer datasheet before selecting the MCU for a safety- or production-critical design.
Recommended
Recommended Products Summary
Engineering reference data for STM32F446VET7 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32F446VET6 | STM32F446VET7XXX | STM32F407VET6TR | STM32F429VGT6 |
|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 100-LQFP 14 x 14 mm | 100-LQFP; exact dimensions not verified | 100-LQFP; exact dimensions not verified | 100-LQFP; exact dimensions not verified | 100-LQFP; exact dimensions not verified |
Key Differentiators
- High-performance Cortex-M4 processing (vs STM32F407VET6TR)
- Dual Quad SPI capability (vs STM32F446VET6)
- SDRAM and audio interface support (vs STM32F429VGT6)
- 500 KB-plus firmware storage (vs STM32F446VET6)
Design Notes
Treat the STM32F446VET7 as a 100-LQFP mixed-signal and high-speed design. Place decoupling capacitors close to the appropriate power pins, keep the ground plane continuous, and route high-current and sensitive analog returns deliberately. Before PCB release, verify the exact pin names and power-domain requirements against the current manufacturer datasheet; the retrieved data confirms the package but does not provide the full pin table.
If SDRAM or high-speed serial links are used, preserve controlled return paths and avoid splitting ground or power planes beneath active signal routes. Match trace lengths and layer transitions according to the selected memory and interface specifications, then validate signal integrity with the actual stack-up and load assumptions. The verified STM32F446 family features SDRAM and dual Quad SPI, but timing and routing limits remain datasheet-dependent.
Do not assume that an STM32F4 MPN with a similar suffix is a drop-in replacement. Confirm package dimensions, pin multiplexing, memory size, clock requirements, peripheral availability, electrical ratings, temperature grade, and firmware compatibility separately. The supplied cross-reference search did not establish exact alternatives, and an apparent 100-LQFP similarity alone is insufficient for production substitution.
Plan the MCU power rails and external-memory rails as a complete system. The provided data does not state operating voltage, current, regulator requirements, or decoupling values, so do not infer them from the 180 MHz CPU rating. Follow the manufacturer recommended power architecture and capacitor selection, and include appropriate bulk storage for SDRAM transients where applicable.
Compliance Information
Compliance status was not explicitly included in the supplied manufacturer or distributor data. Do not infer RoHS, REACH, automotive, lead-free, halogen-free, or conflict-minerals status from the family name.
