STM32F446ZET6U STMicroelectronics Integrated Circuit (Quad Flat Packages) In Stock
The STM32F446ZET6U is a high-performance 32-bit ARM Cortex-M4 microcontroller running up to 180 MHz with 512 KB Flash, 128 KB SRAM, and 144 pins in an LQFP package. It features FPU, DSP instructions, and a rich peripheral set including USB OTG, CAN, and dual-mode SDIO.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat Packages
- Pin Count
- 144
- Lifecycle
- ACTIVE
- Datasheet
- STM32F446ZET6U Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of STM32F446ZET6U?
- 32-bit ARM Cortex-M4 core with FPU up to 180 MHz
- 512 KB Flash and 128 KB SRAM with ART Accelerator
- USB OTG FS/HS, 3x USART, 2x SPI, 2x I2C, 2x CAN
- 144-pin LQFP package for dense peripheral connectivity
- Operating range 1.7 V to 3.6 V with -40°C to 85°C industrial temperature
What is STM32F446ZET6U used for?
STM32F446ZET6U is well-suited for industrial motor control, robotics, and real-time signal processing applications that benefit from the Cortex-M4 FPU and DSP capabilities. It is commonly deployed in power conversion equipment, industrial automation panels, and embedded HMI systems where 180 MHz performance and a full complement of communication interfaces are required.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the STM32F446ZET6U datasheet?
STM32F446ZET6U Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for STM32F446ZET6U?
Compatible alternatives and drop-in replacements for STM32F446ZET6U:
suggested
suggested
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4F CPU, 180MHz, CMOS, PQFP144
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4F CPU, 180MHz, CMOS, PQFP144
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4F CPU, 180MHz, CMOS, PQFP144
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4F CPU, 180MHz, CMOS, PQFP144
Frequently Asked Questions
What clock speed and DSP capability does STM32F446ZET6U provide for real-time signal processing?
STM32F446ZET6U runs at up to 180 MHz with a single-precision FPU and DSP instructions, enabling efficient real-time filtering, FFT computation, and motor-control algorithms that would require a faster or larger MCU without hardware floating-point support.
How much Flash and RAM does STM32F446ZET6U offer, and is it sufficient for a middleware-heavy application?
The STM32F446ZET6U provides 512 KB Flash and 128 KB SRAM. These capacities are adequate for running an RTOS, a USB stack, and motor-control middleware simultaneously, though firmware developers should budget carefully if adding a full TCP/IP stack.
Which package and pin count should designers expect when laying out STM32F446ZET6U on a PCB?
STM32F446ZET6U comes in a 144-pin LQFP package with 0.5 mm pitch, giving access to up to 114 GPIO lines, 3 ADC channels totaling 24 inputs, and multiple high-speed serial interfaces in a standard SMT-compatible footprint.
When should a designer choose STM32F446ZET6U over STM32F446RET6 for a new motor-drive board?
STM32F446ZET6U has 144 pins versus 64 pins on the RET6 variant, providing more GPIO, additional timer channels, and extra ADC inputs. This makes the ZET6U preferable when a single-chip solution must interface to a resolver, encoder, multiple shunt amplifiers, and a CAN bus without external IO expanders.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
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