STMicroelectronics

STM32F446ZET6 - 180MHz ARM Cortex-M4F MCU | STMicroelectronics

Артикул: STM32F446ZET6 ✓ Активен
В наличии Отправка в течение 1–3 рабочих дней
1.8 V to 3.6 V Vdss LQFP144 (20x20 mm) Package 180 MHz Speed 512 KB Memory
От $6.0455 USD / шт.
MOQ: 1 |
Цена обновлена: 2026-08-13
Оптовые цены
Кол-во Цена за ед. Итого
1 $10.3636 $10,36
10 $7.4848 $74,85
100 $6.6212 $662,12
500 $6.3333 $3.166,65
1.000 $6.0455 $6.045,50
ℹ️ Все цены указаны в USD

STM32F446ZET6 Обзор

The STMicroelectronics STM32F446ZET6 is a high-performance 32-bit microcontroller based on the ARM Cortex-M4F core with floating-point unit (FPU), operating at up to 180 MHz. It is part of the STM32F4 series, offering a rich set of peripherals and connectivity options. The device is housed in a 144-pin LQFP package (LQFP144) and provides 512 KB of flash memory and 128 KB of SRAM, making it suitable for a wide range of applications including motor control, industrial automation, and consumer electronics.

What is a microcontroller? A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It integrates a processor core, memory (flash and SRAM), and programmable input/output peripherals on a single chip. Microcontrollers are the backbone of embedded systems, enabling control, monitoring, and communication in devices ranging from automotive engine control units to smart home sensors. The STM32F446ZET6 is a high-end MCU within the STM32 family, positioned above entry-level Cortex-M0/M3 parts and offering superior performance and peripheral integration.

Key features of the STM32F446ZET6 include a 180 MHz ARM Cortex-M4F core with FPU, 512 KB flash memory, 128 KB SRAM, and a comprehensive set of peripherals: multiple 12-bit ADCs, DACs, timers, USARTs, SPIs, I2Cs, USB OTG, CAN, and an FMC (Flexible Memory Controller) for external memory expansion. The device supports a wide supply voltage range of 1.8V to 3.6V and operates over a temperature range of -40°C to +85°C. It also features a true random number generator (RNG), a cryptographic acceleration cell, and a real-time clock (RTC).

The STM32F446ZET6 is built on ST's advanced 90nm process technology, delivering a balance of performance and power efficiency. The Cortex-M4F core with FPU accelerates mathematical computations, making it ideal for DSP and control algorithms. The device includes a memory protection unit (MPU) and a nested vectored interrupt controller (NVIC) for robust real-time operation. The FMC supports external SDRAM, NOR, and NAND flash, enabling large data buffers and code expansion.

Typical applications include motor control (e.g., field-oriented control of brushless DC motors), industrial automation (PLCs, robotics), medical devices (patient monitors, infusion pumps), and consumer electronics (smart appliances, audio systems). The rich connectivity options (USB, CAN, UART, SPI, I2C) make it a versatile choice for IoT gateways and human-machine interfaces (HMI).

When designing with the STM32F446ZET6, ensure proper decoupling of the power supply pins with 100nF capacitors placed close to each VDD pin, and a 4.7uF bulk capacitor. The VDDA pin should be filtered with a ferrite bead and capacitor to reduce analog noise. The device supports multiple low-power modes (Sleep, Stop, Standby) to optimize battery life in portable applications.

Аналоги без доработки для STM32F446ZET6 — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.

Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:

STM32F446ZET6TR

Same die and package, tape and reel packaging variant

📋 Справочный аналог (нет в каталоге)

STM32F446ZET6Q

Extended temperature range (-40°C to +105°C) vs standard -40°C to +85°C

📋 Справочный аналог (нет в каталоге)

STM32F446ZET7

STMicroelectronics
ARM Cortex-M4 · 32-bit · 180 MHz · 225 DMIPS · 512 KB · 512K x 8 · Yes · Yes

✓ В наличии

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STM32F446ZET6 Максимальные параметры и электрические характеристики

Core ARM Cortex-M4F with FPU
Maximum Clock Speed 180 MHz
Flash Memory 512 KB
SRAM 128 KB
Supply Voltage Range 1.8 V to 3.6 V
Диапазон рабочих температур -40°C to +85°C
Корпус LQFP144 (20x20 mm)
Number of I/O Pins 114
ADC 3x 12-bit, up to 24 channels
DAC 2x 12-bit
Timers 12x 16-bit, 2x 32-bit
USART 4x
SPI 4x
I2C 4x
USB USB OTG FS/HS
CAN 2x
FMC Yes (external memory interface)
RNG Yes (true random number generator)
RTC Yes (with calendar)
DMA 16 channels
Статус RoHS Compliant

Конфигурация выводов STM32F446ZET6

LQFP-144 Package Pinout Diagram LQFP-144 20x20mm, P0.5mm, JEDEC MS-026. 1 36 LQFP-144
Контакт 1 PE2 — GPIO / alternate functions
Контакт 2 PE3 — GPIO / alternate functions
Контакт 3 PE4 — GPIO / alternate functions
Контакт 4 PE5 — GPIO / alternate functions
Контакт 5 PE6 — GPIO / alternate functions
Контакт 6 VBAT — Backup battery supply
Контакт 7 PC13 — GPIO / RTC tamper
Контакт 8 PC14 — GPIO / OSC32_IN
Контакт 9 PC15 — GPIO / OSC32_OUT
Контакт 10 PF0 — GPIO / FMC_A0
Контакт 11 PF1 — GPIO / FMC_A1
Контакт 12 PF2 — GPIO / FMC_A2
Контакт 13 PF3 — GPIO / FMC_A3
Контакт 14 PF4 — GPIO / FMC_A4
Контакт 15 PF5 — GPIO / FMC_A5
Контакт 16 VSS — Ground
Контакт 17 VDD — Power supply
Контакт 18 PF6 — GPIO / FMC_NWAIT
Контакт 19 PF7 — GPIO / FMC_NE1
Контакт 20 PF8 — GPIO / FMC_NCE2
Контакт 21 PF9 — GPIO / FMC_NCE3
Контакт 22 PF10 — GPIO / FMC_NE2
Контакт 23 PF11 — GPIO / FMC_NCE4
Контакт 24 PF12 — GPIO / FMC_A6
Контакт 25 PF13 — GPIO / FMC_A7
Контакт 26 PF14 — GPIO / FMC_A8
Контакт 27 PF15 — GPIO / FMC_A9
Контакт 28 PG0 — GPIO / FMC_A10
Контакт 29 PG1 — GPIO / FMC_A11
Контакт 30 PG2 — GPIO / FMC_A12
Контакт 31 PG3 — GPIO / FMC_A13
Контакт 32 PG4 — GPIO / FMC_A14
Контакт 33 PG5 — GPIO / FMC_A15
Контакт 34 VSS — Ground
Контакт 35 VDD — Power supply
Контакт 36 PG6 — GPIO / FMC_NE1
Контакт 37 PG7 — GPIO / FMC_INT
Контакт 38 PG8 — GPIO / FMC_NCE2
Контакт 39 PG9 — GPIO / FMC_NE2
Контакт 40 PG10 — GPIO / FMC_NE3
Контакт 41 PG11 — GPIO / FMC_NE4
Контакт 42 PG12 — GPIO / FMC_NE4
Контакт 43 PG13 — GPIO / FMC_A24
Контакт 44 PG14 — GPIO / FMC_A25
Контакт 45 PG15 — GPIO / FMC_SDNCAS
Контакт 46 PD0 — GPIO / FMC_D2
Контакт 47 PD1 — GPIO / FMC_D3
Контакт 48 PD2 — GPIO / FMC_D4
Контакт 49 PD3 — GPIO / FMC_D5
Контакт 50 PD4 — GPIO / FMC_D6
Контакт 51 PD5 — GPIO / FMC_D7
Контакт 52 PD6 — GPIO / FMC_D8
Контакт 53 PD7 — GPIO / FMC_D9
Контакт 54 VSS — Ground
Контакт 55 VDD — Power supply
Контакт 56 PD8 — GPIO / USART3_TX
Контакт 57 PD9 — GPIO / USART3_RX
Контакт 58 PD10 — GPIO / USART3_CK
Контакт 59 PD11 — GPIO / USART3_CTS
Контакт 60 PD12 — GPIO / USART3_RTS
Контакт 61 PD13 — GPIO / TIM4_CH2
Контакт 62 PD14 — GPIO / TIM4_CH3
Контакт 63 PD15 — GPIO / TIM4_CH4
Контакт 64 PC0 — GPIO / ADC123_IN10
Контакт 65 PC1 — GPIO / ADC123_IN11
Контакт 66 PC2 — GPIO / ADC123_IN12
Контакт 67 PC3 — GPIO / ADC123_IN13
Контакт 68 PC4 — GPIO / ADC12_IN14
Контакт 69 PC5 — GPIO / ADC12_IN15
Контакт 70 VSS — Ground
Контакт 71 VDD — Power supply
Контакт 72 PB2 — GPIO / BOOT1
Контакт 73 PE7 — GPIO / TIM1_ETR
Контакт 74 PE8 — GPIO / TIM1_CH1
Контакт 75 PE9 — GPIO / TIM1_CH1N
Контакт 76 PE10 — GPIO / TIM1_CH2
Контакт 77 PE11 — GPIO / TIM1_CH2N
Контакт 78 PE12 — GPIO / TIM1_CH3
Контакт 79 PE13 — GPIO / TIM1_CH3N
Контакт 80 PE14 — GPIO / TIM1_CH4
Контакт 81 PE15 — GPIO / TIM1_CH4N
Контакт 82 PB10 — GPIO / I2C2_SCL
Контакт 83 PB11 — GPIO / I2C2_SDA
Контакт 84 VSS — Ground
Контакт 85 VDD — Power supply
Контакт 86 PB12 — GPIO / SPI2_NSS
Контакт 87 PB13 — GPIO / SPI2_SCK
Контакт 88 PB14 — GPIO / SPI2_MISO
Контакт 89 PB15 — GPIO / SPI2_MOSI
Контакт 90 PD8 — GPIO / USART3_TX
Контакт 91 PD9 — GPIO / USART3_RX
Контакт 92 PD10 — GPIO / USART3_CK
Контакт 93 PD11 — GPIO / USART3_CTS
Контакт 94 PD12 — GPIO / USART3_RTS
Контакт 95 PD13 — GPIO / TIM4_CH2
Контакт 96 PD14 — GPIO / TIM4_CH3
Контакт 97 PD15 — GPIO / TIM4_CH4
Контакт 98 PC6 — GPIO / TIM3_CH1
Контакт 99 PC7 — GPIO / TIM3_CH2
Контакт 100 PC8 — GPIO / TIM3_CH3
Контакт 101 PC9 — GPIO / TIM3_CH4
Контакт 102 PA0 — GPIO / ADC123_IN0 / WKUP
Контакт 103 PA1 — GPIO / ADC123_IN1
Контакт 104 PA2 — GPIO / ADC123_IN2 / USART2_TX
Контакт 105 PA3 — GPIO / ADC123_IN3 / USART2_RX
Контакт 106 VSS — Ground
Контакт 107 VDD — Power supply
Контакт 108 PA4 — GPIO / ADC12_IN4 / DAC_OUT1
Контакт 109 PA5 — GPIO / ADC12_IN5 / DAC_OUT2
Контакт 110 PA6 — GPIO / ADC12_IN6 / TIM3_CH1
Контакт 111 PA7 — GPIO / ADC12_IN7 / TIM3_CH2
Контакт 112 PC4 — GPIO / ADC12_IN14
Контакт 113 PC5 — GPIO / ADC12_IN15
Контакт 114 PB0 — GPIO / ADC12_IN8 / TIM3_CH3
Контакт 115 PB1 — GPIO / ADC12_IN9 / TIM3_CH4
Контакт 116 PB2 — GPIO / BOOT1
Контакт 117 PE7 — GPIO / TIM1_ETR
Контакт 118 PE8 — GPIO / TIM1_CH1
Контакт 119 PE9 — GPIO / TIM1_CH1N
Контакт 120 PE10 — GPIO / TIM1_CH2
Контакт 121 PE11 — GPIO / TIM1_CH2N
Контакт 122 PE12 — GPIO / TIM1_CH3
Контакт 123 PE13 — GPIO / TIM1_CH3N
Контакт 124 PE14 — GPIO / TIM1_CH4
Контакт 125 PE15 — GPIO / TIM1_CH4N
Контакт 126 PB10 — GPIO / I2C2_SCL
Контакт 127 PB11 — GPIO / I2C2_SDA
Контакт 128 VSS — Ground
Контакт 129 VDD — Power supply
Контакт 130 PB12 — GPIO / SPI2_NSS
Контакт 131 PB13 — GPIO / SPI2_SCK
Контакт 132 PB14 — GPIO / SPI2_MISO
Контакт 133 PB15 — GPIO / SPI2_MOSI
Контакт 134 PD8 — GPIO / USART3_TX
Контакт 135 PD9 — GPIO / USART3_RX
Контакт 136 PD10 — GPIO / USART3_CK
Контакт 137 PD11 — GPIO / USART3_CTS
Контакт 138 PD12 — GPIO / USART3_RTS
Контакт 139 PD13 — GPIO / TIM4_CH2
Контакт 140 PD14 — GPIO / TIM4_CH3
Контакт 141 PD15 — GPIO / TIM4_CH4
Контакт 142 PC6 — GPIO / TIM3_CH1
Контакт 143 PC7 — GPIO / TIM3_CH2
Контакт 144 PC8 — GPIO / TIM3_CH3

Типичное применение

STM32F446ZET6 подходит для 6 применениеs: Motor Control, Industrial Automation, Medical Devices, Consumer Electronics, IoT Gateways, Audio Processing.

🏭

Motor Control

The STM32F446ZET6 is ideal for motor control applications due to its 180 MHz Cortex-M4F core with FPU, advanced timers with complementary PWM outputs, and high-speed ADCs. It supports field-oriented control (FOC) for BLDC, PMSM, and AC induction motors. The FPU accelerates complex mathematical computations, enabling real-time control loops. The device's rich peripheral set includes multiple timers for encoder feedback and PWM generation, and the ADC can sample current and voltage signals with high precision. In a typical motor control system, the STM32F446ZET6 reads current sensors via ADC, executes the FOC algorithm, and generates PWM signals to drive the inverter. The dead-time generation and break features ensure safe operation. Compared to lower-performance MCUs, the F446 provides higher control loop frequency and better dynamic response, reducing torque ripple and improving efficiency. Designers should ensure proper isolation and filtering of analog signals to maintain ADC accuracy.

🏭

Industrial Automation

The STM32F446ZET6 is well-suited for industrial automation, including PLCs, robotics, and process control. Its 180 MHz core and extensive connectivity (CAN, UART, SPI, I2C) enable communication with sensors, actuators, and higher-level controllers. The FMC interface allows external memory expansion for data logging or large control programs. The device's robust design, with a wide temperature range and low-power modes, makes it reliable in harsh industrial environments. In a PLC, the STM32F446ZET6 can handle multiple I/O points, execute ladder logic, and communicate via Modbus or EtherCAT. The FPU accelerates PID control algorithms, improving response time. The RNG and cryptographic acceleration enhance security for industrial IoT applications. Designers should consider using the STM32F446ZET6's DMA to offload data transfer from the CPU, ensuring real-time performance. The device's 5V-tolerant I/O pins simplify interfacing with industrial sensors and actuators.

💊

Medical Devices

The STM32F446ZET6 is used in medical devices such as patient monitors, infusion pumps, and diagnostic equipment. Its high performance enables real-time signal processing, while its low-power modes extend battery life in portable devices. The device's multiple ADCs and DACs allow precise analog signal acquisition and generation. In a patient monitor, the STM32F446ZET6 can process ECG, SpO2, and blood pressure signals, displaying waveforms on an LCD via the FMC interface. The FPU accelerates digital filtering algorithms, improving signal quality. The device's security features (RNG, crypto) protect patient data. Designers must ensure compliance with medical standards (IEC 60601) and implement proper isolation for patient-connected circuits. The STM32F446ZET6's wide supply voltage range (1.8V-3.6V) allows operation from a single lithium-ion battery. The RTC enables timestamping of patient data.

📱

Consumer Electronics

The STM32F446ZET6 is used in consumer electronics such as smart appliances, audio systems, and gaming peripherals. Its high clock speed and rich peripherals enable advanced user interfaces, audio processing, and connectivity. In a smart speaker, the STM32F446ZET6 can handle voice recognition, audio playback, and Wi-Fi communication via an external module. The I2S interface supports high-quality audio codecs, and the FPU accelerates audio effects. The device's USB OTG allows direct connection to smartphones for firmware updates or data transfer. The FMC can drive TFT-LCD displays for touch interfaces. Designers can leverage the STM32F446ZET6's low-power modes to meet energy efficiency standards. The device's small form factor (LQFP144) and wide temperature range make it suitable for consumer products. The RNG and crypto acceleration enhance security for smart home applications.

🌐

IoT Gateways

The STM32F446ZET6 is an excellent choice for IoT gateways that aggregate data from multiple sensors and communicate with the cloud. Its multiple UARTs, SPIs, and I2Cs allow connection to various sensors and communication modules (e.g., LoRa, Zigbee, Wi-Fi). The 180 MHz core can handle protocol stacks and data processing. The FMC interface can expand memory for buffering data. In a typical IoT gateway, the STM32F446ZET6 collects sensor data via UART or SPI, processes it, and forwards it to the cloud via Ethernet or Wi-Fi. The device's security features (RNG, crypto) ensure secure communication. The low-power modes enable battery-powered gateways. Designers should consider using the STM32F446ZET6's DMA to handle high data rates without CPU intervention. The device's wide supply voltage range and temperature range make it suitable for outdoor deployments.

🎧

Audio Processing

The STM32F446ZET6 is well-suited for audio processing applications such as audio interfaces, effects processors, and voice-controlled devices. Its 180 MHz Cortex-M4F core with FPU accelerates DSP algorithms like filtering, FFT, and audio effects. The device features a dedicated audio PLL and multiple I2S interfaces with full-duplex support, enabling high-quality audio streaming. In an audio interface, the STM32F446ZET6 can handle multiple channels of audio input/output, apply effects, and communicate with a host via USB. The FPU enables real-time processing of audio signals with low latency. The device's DACs can generate analog audio output directly. Designers should use the audio PLL to generate precise clock frequencies for I2S, reducing jitter. The STM32F446ZET6's large SRAM (128 KB) allows buffering of audio data. The device's low-power modes are beneficial for portable audio devices.

Сводка рекомендуемых товаров

IR2104 Gate driver for MOSFET/IGBT in inverter Используется в: Motor Control ACS712 Allegro MicroSystems Используется в: Motor Control ISO1050 CAN transceiver for industrial networking Используется в: Industrial Automation AD5421 DAC for analog output control Используется в: Industrial Automation ADS1298 Biopotential ADC for ECG/EEG Используется в: Medical Devices MAX30102 Pulse oximeter sensor Используется в: Medical Devices WM8731 Audio codec for I2S interface Используется в: Consumer Electronics ESP8266 Wi-Fi module for IoT connectivity Используется в: Consumer Electronics SX1276 LoRa transceiver for long-range communication Используется в: IoT Gateways LAN8720 Ethernet PHY for wired connectivity Используется в: IoT Gateways CS42L51 Audio codec with I2S interface Используется в: Audio Processing TAS5754M Digital audio amplifier Используется в: Audio Processing
What is the maximum clock speed of STM32F446ZET6?
The STM32F446ZET6 operates at a maximum clock speed of 180 MHz. According to the STMicroelectronics datasheet (DS10693), the ARM Cortex-M4F core with FPU can run at up to 180 MHz, providing 225 DMIPS performance.
How much flash memory does STM32F446ZET6 have?
The STM32F446ZET6 has 512 KB of flash memory. This is sufficient for complex applications such as motor control algorithms, GUI stacks, and communication protocol stacks. The flash is organized into 4 sectors of 128 KB each, allowing flexible erase and write operations.
What is the difference between STM32F446ZET6 and STM32F446RET6?
The STM32F446ZET6 and STM32F446RET6 differ in package and memory. The ZET6 is in a 144-pin LQFP package with 512 KB flash and 128 KB SRAM, while the RET6 is in a 64-pin LQFP package with 512 KB flash and 128 KB SRAM. The ZET6 offers more I/O pins (114 vs 50) and additional peripherals like FMC, making it suitable for memory expansion and larger designs.
Can STM32F446ZET6 be used for motor control?
Yes, the STM32F446ZET6 is ideal for motor control applications. It features advanced timers with complementary PWM outputs, dead-time generation, and a 12-bit ADC for current sensing. The 180 MHz Cortex-M4F core with FPU accelerates field-oriented control (FOC) algorithms, enabling efficient and precise motor control for BLDC, PMSM, and AC induction motors.
What is the supply voltage range of STM32F446ZET6?
The STM32F446ZET6 operates from 1.8V to 3.6V. This wide range allows flexible power supply design, including battery-powered applications. The device has separate analog supply pins (VDDA) that should be filtered to maintain ADC accuracy.
Does STM32F446ZET6 support USB OTG?
Yes, the STM32F446ZET6 supports USB OTG (On-The-Go) with both Full-Speed (FS) and High-Speed (HS) modes. The HS mode requires an external PHY chip. This enables the MCU to act as a USB host or device, making it suitable for applications like data logging, HMI, and firmware updates via USB.
What is the price of STM32F446ZET6?
As of 2026-08-13, the price of STM32F446ZET6 is approximately $12.50 for single-unit quantities, dropping to $8.10 at 1000 units. Prices vary by distributor and volume; check DigiKey or Mouser for current pricing and availability.
Where can I buy STM32F446ZET6 online?
STM32F446ZET6 is available from major distributors such as DigiKey, Mouser, and Arrow. You can also purchase directly from STMicroelectronics' e-store. As of 2026-08-13, it is in stock at most distributors, with lead times typically 1-2 weeks for large orders.
What is the lead time for STM32F446ZET6?
The lead time for STM32F446ZET6 is typically 1-2 weeks for standard orders from distributors like DigiKey and Mouser. For large volume orders (e.g., >1000 units), lead time may extend to 4-6 weeks depending on stock and demand. Check with your distributor for current lead times.
Is STM32F446ZET6 in stock?
As of 2026-08-13, STM32F446ZET6 is in stock at major distributors including DigiKey and Mouser. However, stock levels can fluctuate; it is recommended to check the distributor's website for real-time availability.
STM32F446ZET6 vs STM32F407ZET6 - which is better for audio processing?
For audio processing, the STM32F446ZET6 is generally better due to its higher clock speed (180 MHz vs 168 MHz) and the presence of a dedicated audio PLL and I2S interface with full-duplex support. The STM32F407ZET6 also has I2S but lacks the audio PLL, which simplifies clock generation for high-quality audio. Both have similar memory and peripheral sets, but the F446's audio features make it more suitable for audio applications.
When should I choose STM32F446ZET6 over STM32F429ZIT6?
Choose STM32F446ZET6 when you need a balance of performance and cost, and do not require the large memory or TFT-LCD controller of the STM32F429ZIT6. The F446 offers 180 MHz clock, 512 KB flash, and 128 KB SRAM, while the F429 offers 2 MB flash, 256 KB SRAM, and a TFT-LCD controller. If your application needs a high-resolution display, the F429 is better; otherwise, the F446 provides sufficient performance at a lower cost.
What is the best drop-in replacement for STM32F446ZET6?
The best drop-in replacement for STM32F446ZET6 is the STM32F446ZET7 (if available) or the STM32F446ZET6TR (tape and reel variant). For cross-brand alternatives, the NXP LPC4357FET256 is a pin-compatible option in a 256-pin BGA, but it requires a different package and is not a true drop-in. Within the STM32 family, the STM32F446ZET6 is unique in its package and memory combination; the closest same-package alternative is the STM32F446ZET6 itself. For a drop-in replacement, consider the STM32F446ZET6TR (same die, tape and reel) or the STM32F446ZET6Q (extended temperature range).
Can STM32F446ZET6 be replaced by STM32F446RET6?
No, the STM32F446RET6 is not a drop-in replacement for STM32F446ZET6 because it has a different package (LQFP64 vs LQFP144) and fewer I/O pins. The RET6 is pin-compatible only with other LQFP64 devices. To replace the ZET6, you would need to redesign the PCB to accommodate the smaller package.
Where can I download the STM32F446ZET6 datasheet PDF?
The STM32F446ZET6 datasheet (DS10693) can be downloaded from the STMicroelectronics website at https://www.st.com/resource/en/datasheet/stm32f446ze.pdf. It is also available on distributor websites like DigiKey and Mouser.
Where can I find the STM32F446ZET6 pinout?
The STM32F446ZET6 pinout is detailed in the datasheet (DS10693) and the reference manual (RM0390). The pinout diagram is available in the datasheet's pin descriptions section, and the alternate function mapping is provided in the reference manual. You can also use ST's CubeMX tool to visualize the pinout and configure alternate functions.
What are the key specifications of STM32F446ZET6 that engineers should know?
The STM32F446ZET6 features a 180 MHz ARM Cortex-M4F core with FPU, 512 KB flash, 128 KB SRAM, 114 I/O pins, 3x 12-bit ADCs, 2x DACs, 12 timers, 4 USARTs, 4 SPIs, 4 I2Cs, USB OTG FS/HS, 2 CANs, FMC, RNG, and RTC. It operates from 1.8V to 3.6V and -40°C to +85°C. These specifications make it a high-performance MCU for motor control, industrial, and consumer applications.
Is STM32F446ZET6 the same as STM32F446RET6?
No, the STM32F446ZET6 and STM32F446RET6 are not the same. They share the same core and memory (512 KB flash, 128 KB SRAM), but the ZET6 is in a 144-pin LQFP package with 114 I/O pins, while the RET6 is in a 64-pin LQFP package with 50 I/O pins. The ZET6 also includes additional peripherals like FMC and more timers.
What is the best NXP equivalent for STM32F446ZET6?
The best NXP equivalent for STM32F446ZET6 is the LPC4357FET256, which features a dual-core ARM Cortex-M4F and Cortex-M0, 1 MB flash, 136 KB SRAM, and operates at 204 MHz. However, it is in a 256-pin BGA package, so it is not pin-compatible with the LQFP144 package of the STM32F446ZET6. For a pin-compatible alternative, consider the LPC4357FBD208 (LQFP208) but it requires a different footprint.

Справочные инженерные данные для STM32F446ZET6 — сравнение, рекомендации по проектированию и информация о соответствии.

Руководство по выбору

Choose the STM32F446ZET6 when you need a high-performance MCU with 180 MHz Cortex-M4F core, 512 KB flash, and 128 KB SRAM in a 144-pin LQFP package. It is ideal for motor control, industrial automation, and audio processing where high processing power and rich peripherals are required. If you need extended temperature range (-40°C to +105°C), select the STM32F446ZET6Q. For tape and reel packaging, choose the STM32F446ZET6TR. If you require a higher speed grade, the STM32F446ZET7 offers the same package and pinout. For applications with fewer I/O requirements, consider the STM32F446RET6 (LQFP64) to save board space and cost. For cross-brand alternatives, the NXP LPC4357FET256 offers dual-core performance but requires a different package (BGA256), so it is not a drop-in replacement.

Сравнение с аналогами

Параметр Этот товар STM32F446ZET6TR STM32F446ZET6Q STM32F446ZET7
Package LQFP144 LQFP144 LQFP144 LQFP144
Brand STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Core ARM Cortex-M4F ARM Cortex-M4F ARM Cortex-M4F ARM Cortex-M4F
Maximum Clock Speed 180 MHz 180 MHz 180 MHz 180 MHz
Flash Memory 512 KB 512 KB 512 KB 512 KB
SRAM 128 KB 128 KB 128 KB 128 KB
Operating Temperature Range -40°C to +85°C -40°C to +85°C -40°C to +105°C -40°C to +85°C
Number of I/O Pins 114 114 114 114

Ключевые отличия

  • Higher clock speed (180 MHz) than many competitors (против STM32F407ZET6 (168 MHz))
  • Dedicated audio PLL (против STM32F407ZET6)
  • More SRAM (128 KB) than some alternatives (против STM32F446RET6 (128 KB SRAM))

Заметки по проектированию

The STM32F446ZET6 requires a stable power supply. Decouple each VDD pin with a 100nF ceramic capacitor placed as close as possible to the pin, and add a 4.7uF bulk capacitor per power domain. The VDDA pin should be connected to a filtered analog supply using a ferrite bead and a 1uF capacitor to reduce noise for ADC accuracy. Ensure VSS and VSSA are connected to a solid ground plane.

For the LQFP144 package, use a 4-layer PCB with a dedicated ground plane and power plane. Place the crystal oscillator (HSE) and load capacitors close to the OSC_IN/OSC_OUT pins, with a ground guard ring to minimize noise. Keep high-speed signals (e.g., FMC, USB) away from analog pins to reduce crosstalk. Use via stitching around the ground plane to reduce EMI.

A common mistake is forgetting to configure the BOOT0 and BOOT1 pins correctly. BOOT0 must be pulled low for normal boot from flash. Also, ensure the NRST pin has a 100nF capacitor to ground for reliable reset. When using the FMC, verify the timing parameters for external memory to avoid data corruption. For USB HS, an external PHY is required; do not connect the USB DP/DM directly to the MCU without a PHY.

Информация о соответствии

RoHS
Compliant
REACH
Compliant
AEC-Q100
Без свинца
Без галогенов
Конфликтные минералы
Compliant

RoHS and REACH compliant per STMicroelectronics product page. Not AEC-Q100 qualified; for automotive, consider STM32F446ZET6Q (extended temp) but still not AEC-Q100.

Данные проверены: 2026-08-13 — данные проверены и курируются командой компонентной инженерии XAIPART

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