STMicroelectronics

STM32F446ZET6 - 180MHz ARM Cortex-M4F MCU | STMicroelectronics

부품 번호: STM32F446ZET6 ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
1.8 V to 3.6 V Vdss LQFP144 (20x20 mm) Package 180 MHz Speed 512 KB Memory
시작가 $6.0455 USD / 개
MOQ: 1 |
가격 업데이트: 2026-08-13
볼륨 가격
수량 단가 합계
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 모든 가격은 USD 기준입니다

STM32F446ZET6 개요

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.

드롭인 대체품: STM32F446ZET6 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

STM32F446ZET6TR

Same die and package, tape and reel packaging variant

📋 참조 대체품 (카탈로그에 없음)

STM32F446ZET6Q

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

📋 참조 대체품 (카탈로그에 없음)

STM32F446ZET7

Higher speed grade (180 MHz) with same package and pinout

📋 참조 대체품 (카탈로그에 없음)

STM32F446ZET6 최대 정격 & 전기적 특성

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
동작 온도 범위 -40°C to +85°C
패키지 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
RoHS 상태 Compliant

STM32F446ZET6 핀 구성

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

일반적인 애플리케이션

STM32F446ZET6 적합 용도: 6 애플리케이션s: 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.

추천 제품 요약

IR2104 Gate driver for MOSFET/IGBT in inverter 사용처: Motor Control ACS712 Allegro MicroSystems 사용처: Motor Control ISO1050 CAN transceiver for industrial networking 사용처: Industrial Automation AD5421 DAC for analog output control 사용처: Industrial Automation ADS1298 Biopotential ADC for ECG/EEG 사용처: Medical Devices MAX30102 Pulse oximeter sensor 사용처: Medical Devices WM8731 Audio codec for I2S interface 사용처: Consumer Electronics ESP8266 Wi-Fi module for IoT connectivity 사용처: Consumer Electronics SX1276 LoRa transceiver for long-range communication 사용처: IoT Gateways LAN8720 Ethernet PHY for wired connectivity 사용처: IoT Gateways CS42L51 Audio codec with I2S interface 사용처: Audio Processing TAS5754M Digital audio amplifier 사용처: 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.

엔지니어링 참조 데이터: STM32F446ZET6 — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

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.

대체품과의 비교

파라미터 이 제품 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

주요 차별점

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

설계 노트

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.

규정 준수 정보

RoHS
Compliant
REACH
Compliant
AEC-Q100
무연
무할로겐
분쟁 광물
Compliant

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

데이터 검증일: 2026-08-13 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

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