STMicroelectronics

STM32F446RET7 - 180MHz Cortex-M4 512KB MCU | STMicroelectronics

부품 번호: STM32F446RET7 ✗ 단종
재고 있음 영업일 기준 1~3일 내 발송
2.5 V / 3.3 V Vdss 64-LQFP (10 mm x 10 mm) Package 180 MHz Speed 512 KB Memory
시작가 $5.9114 USD / 개
MOQ: 1 |
가격 업데이트: 2026-10-22
볼륨 가격
수량 단가 합계
1 $5.9114 $5.91
10 $5.9114 $59.11
100 $5.9114 $591.14
500 $5.9114 $2,955.70
1,000 $5.9114 $5,911.40
ℹ️ 모든 가격은 USD 기준입니다

STM32F446RET7 개요

The STMicroelectronics STM32F446RET7 is a 32-bit Arm Cortex-M4 microcontroller with a 180 MHz maximum clock, 512 KB of flash memory, and a 64-pin LQFP package measuring 10 mm by 10 mm. The verified distributor listing identifies an integrated floating-point unit and DSP capability, making the device suitable for real-time control, signal processing, communications, and connected embedded systems.

A microcontroller is a programmable system-on-chip that integrates a CPU core, nonvolatile program memory, data memory, peripherals, and interface controllers on one die. In the product hierarchy, the STM32F446 belongs to the STM32F4 family of 32-bit microcontrollers and combines an Arm Cortex-M4 processor with embedded-control peripherals. Its 32-bit architecture supports efficient control tasks, while the DSP and FPU features improve performance for common signal-processing workloads.

The verified data establishes a 180 MHz operating frequency, 512 KB organized as 512K by 8 bits of flash, and a 64-LQFP package. The STM32F4 family positioning also identifies the device as a high-performance foundation-line MCU. Detailed RAM size, GPIO count, operating-voltage range, peripheral inventory, temperature range, and electrical limits are not present in the supplied excerpts and therefore remain marked as data needed rather than inferred.

The STM32F446RET7 can serve as the central controller in industrial equipment where deterministic real-time behavior and floating-point calculations are useful. Its Cortex-M4 DSP and FPU support is relevant to digital filtering, control loops, motion-related computation, and signal conditioning. The 512 KB flash capacity provides room for a substantial embedded application and boot code, although final firmware sizing must be checked against SRAM, bootloader, and peripheral requirements.

A 64-pin LQFP is appropriate for prototypes, instruments, automation controllers, communications equipment, and industrial control boards that need more external pins than a compact QFN package provides. The 10 mm by 10 mm body is larger than the smallest leaded packages, so PCB designers should follow the manufacturer land pattern and allow adequate pin-row clearance during inspection and rework.

When selecting this MCU, engineers should verify the complete pinout, alternate-function mapping, clock tree, memory map, and peripheral electrical limits from the manufacturer datasheet before layout. Firmware development also requires confirming the supported toolchain and debugging interface. Migration to another STM32F4 device should never be based only on package similarity; peripheral functions, pin assignments, clock requirements, and software support must be reviewed explicitly.

This product record consolidates verified distributor specifications, source links, package details, application guidance, and replacement limitations. It also distinguishes confirmed drop-in facts from unverified comparisons so procurement and engineering teams can review current availability, pricing, and technical fit against authoritative documentation.

드롭인 대체품: STM32F446RET7 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: STM32F446RET7 (동일 폼 팩터 및 풋프린트) — 차이점: Package, Core, DSP Support, Flash Memory, RoHS Status.

STMicroelectronics
Package: 64-LQFP, 10 x 10 mm
Core: Arm Cortex-M4
DSP Support: Digital signal processing and FPU
비교 대상: STM32F446RET7 →
STMicroelectronics
Package: 64-LQFP (10 x 10 mm)
Flash Memory: 512 KB
RoHS Status: Compliant
비교 대상: STM32F446RET7 →

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대체품 요청

STM32F446RET7 최대 정격 & 전기적 특성

Product Type 32-bit ARM Cortex-M4 microcontroller
최대 클록 주파수 180 MHz
CPU Architecture ARM Cortex-M4 with DSP and FPU
Flash Memory Size 512 KB
Flash Organization 512K x 8 bits
패키지 64-LQFP (10 mm x 10 mm)
핀 수 64 pins
실장 유형 Surface mount
Operating Supply 2.5 V / 3.3 V
Series STM32F4 high-performance foundation line
Core 32-bit ARM Cortex-M4
DSP Support Yes
Floating-Point Unit Yes

STM32F446RET7 64-lqfp (10 mm x 10 mm) 핀 구성 가이드

STM32F446RET7(64-lqfp (10 mm x 10 mm) 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.

STM32F446RET7의 64-lqfp (10 mm x 10 mm) 패키지 핀아웃 다이어그램

다음에 대한 상세 핀아웃 데이터 없음: STM32F446RET7.

다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.

일반적인 애플리케이션

STM32F446RET7 적합 용도: 6 애플리케이션s: Industrial Control, Digital Signal Processing, Motor and Motion Control, Medical and Measurement Equipment, Data Acquisition, Communications Equipment.

🏭

Industrial Control

The STM32F446RET7 fits industrial control applications that benefit from its verified 180 MHz Cortex-M4 core, DSP capability, floating-point unit, and 512 KB flash. It can coordinate sensors, actuators, communications, and real-time control logic in one device. The 64-pin LQFP provides a practical leaded footprint for prototypes and production boards where inspectability matters. Before finalizing the design, verify the exact GPIO count, timer assignments, ADC performance, communication peripherals, and operating-temperature limits in the manufacturer documentation. RAM availability must also be checked because it is not stated in the supplied excerpts.

📡

Digital Signal Processing

The Cortex-M4 DSP and floating-point-unit features make the STM32F446RET7 relevant to embedded filtering, control calculations, and signal-conditioning tasks. Its verified maximum frequency of 180 MHz provides processing headroom for algorithms that do not require a more complex external processor, while 512 KB of flash can hold application code and fixed-point tables. Algorithm suitability depends on cycle count, memory use, and interrupt latency. Because SRAM capacity and detailed timer specifications are absent from the verified excerpts, benchmark the complete firmware and confirm memory availability before committing to this part.

🔧

Motor and Motion Control

The STM32F446RET7 can serve in motor-oriented control prototypes where real-time computation, floating-point operations, and a 64-pin package simplify implementation. The 180 MHz Cortex-M4 core can evaluate control algorithms and manage multiple timing-sensitive tasks, subject to confirmation of the required timers, PWM channels, encoder interfaces, and analog inputs. The supplied excerpts do not verify those peripheral details, so engineers must map them to the exact pinout and electrical limits. Use the manufacturer application guidance for timing, filtering, grounding, and protection rather than extrapolating specifications from another STM32 device.

💊

Medical and Measurement Equipment

The STM32F446RET7 can be evaluated for compact measurement or medical-instrument electronics when a high-performance control core and substantial 512 KB flash are useful. Arrow's verified listing identifies a 2.5 V or 3.3 V medical-oriented listing context, but it does not provide a medical certification claim. Engineers must review analog front-end interfaces, ADC characteristics, noise behavior, safety requirements, and applicable quality documentation separately. Do not treat marketplace category labeling as evidence of medical qualification; validate the exact ordered part and compliance records before use in regulated equipment.

🖥️

Data Acquisition

The STM32F446RET7 is a reasonable MCU candidate for data-acquisition front ends where control firmware must coordinate sampling, buffering, communications, and host connectivity. Its 180 MHz processing rate and DSP/FPU support can help manage numerical work around external converters, while 512 KB flash accommodates firmware and configuration. The 64-pin LQFP is useful when a design needs externally accessible signals or test points. Verify ADC characteristics, DMA resources, memory capacity, communication peripherals, and package pin multiplexing in the official datasheet; none of those detailed resource counts are confirmed by the supplied snippets.

🌐

Communications Equipment

The STM32F446RET7 can support embedded communications equipment when the required protocol interfaces, processing margin, and memory budget fit the device. Its 180 MHz Cortex-M4 core and DSP/FPU support are useful for framing, buffer management, signal conditioning, and protocol processing, while the LQFP package simplifies prototype access. However, the verified excerpts do not list UART, USB, Ethernet, CAN, or other peripheral configurations. Engineers must check the exact alternate-function mapping and pin conflicts in the official datasheet, then validate firmware drivers and timing against the intended industrial or networking environment.

What are the key specifications of STM32F446RET7 that engineers should know?
The STM32F446RET7 combines a 32-bit Arm Cortex-M4 core, up to 180 MHz operation, 512 KB of flash memory, DSP and floating-point-unit support, and a 64-pin LQFP package. DigiKey describes the device as an STM32F4 microcontroller with 512K-by-8-bit flash in a 10 mm by 10 mm LQFP. Mouser places it in the high-performance foundation line and also identifies the Cortex-M4 DSP and FPU features. These verified figures make it appropriate for performance-oriented embedded control, but RAM, GPIO count, and detailed peripheral limits still require confirmation from the manufacturer datasheet.
What is the operating frequency of STM32F446RET7?
The STM32F446RET7 operates at up to 180 MHz according to the verified DigiKey product listing. That clock rate is one of the clearest indicators of its processing class: it is intended for high-performance embedded workloads rather than basic low-clock control. Actual system clock behavior depends on the power supply, oscillator configuration, clock tree, voltage conditions, firmware, and thermal limits defined in the manufacturer documentation. The 180 MHz figure should therefore be treated as the maximum advertised device frequency rather than a guaranteed operating point for every board.
How much flash memory does STM32F446RET7 contain?
The STM32F446RET7 contains 512 KB of flash memory, expressed in the verified listing as 512K by 8 bits. This gives embedded developers substantial program-storage capacity for control logic, communications protocols, configuration handling, and application firmware. Firmware growth should still be budgeted against bootloader requirements and the MCU's available RAM. Because the supplied excerpts do not specify SRAM capacity, designers must check the official memory map and device datasheet before sizing buffers, stacks, RTOS memory, or data logging.
Where can I download the STM32F446RET7 datasheet PDF?
The verified Datasheets.com page provides access to the STM32F446RET7 datasheet, while DigiKey, Mouser, ST's online store, and Octopart provide product or datasheet links for the same device. Use the manufacturer documentation for final pin assignments, electrical characteristics, memory details, and errata because distributor summaries may omit important information. The supplied web results do not identify a document number or revision, so this record does not invent one. Engineers should also verify any later STMicroelectronics revision or device erratum applicable to their production date.
Where can I find the STM32F446RET7 pinout and package drawing?
The STM32F446RET7 pinout should be obtained from the official STMicroelectronics datasheet and package drawing; LCSC also advertises access to package and pinout diagrams for this MPN. The verified package is a 64-pin, 10 mm by 10 mm LQFP. This page does not reproduce a verified 64-entry pin table because the supplied excerpts do not provide individual terminal names. Before routing a PCB, confirm every power pin, ground pin, reset connection, debug interface, oscillator arrangement, and alternate-function assignment against the current manufacturer package drawing.
Is STM32F446RET7 suitable for DSP and control applications?
Yes, the STM32F446RET7 is suitable for many DSP-assisted control applications because Mouser explicitly identifies the Cortex-M4 DSP and FPU capabilities, while DigiKey confirms the 180 MHz class of performance. These features can accelerate suitable floating-point and digital-signal-processing operations in control loops, filtering, and instrumentation. They do not make the MCU suitable for every workload automatically: algorithm memory use, execution-time margins, peripherals, and interrupt requirements must still be evaluated. The 512 KB flash figure is verified, but RAM availability remains unconfirmed in the supplied data.
STM32F446RET7 vs STM32F446RCT6 - which MCU is the better replacement candidate?
STM32F446RET6 appears in the supplied DigiKey cross-reference results, but the excerpts do not establish a verified pin-to-pin match or provide enough detailed parameters to declare it a drop-in replacement. Both MPNs appear in the same STM32F446 family context, yet suffix differences can affect temperature, packaging, qualification, or ordering. Engineers should compare the complete manufacturer ordering information, pinout, electrical limits, and qualification records before substitution. This record therefore does not claim a validated drop-in relationship without those missing facts.
What can replace STM32F446RET7 without PCB changes?
No verified no-PCB-change replacement is established by the supplied STM32F446RET7 cross-reference results. Search results mention STM32F446RCT6, STM32F446RCT7TR, STM32F722RET6, and unrelated MCUs, but they do not verify identical 64-LQFP pin assignments, electrical characteristics, memory, and peripheral behavior. A genuine drop-in substitute must match the package footprint and terminal mapping and remain acceptable for every used peripheral and operating condition. Firmware and qualification review are mandatory even when the package is physically identical.
When should I choose STM32F446RET7 instead of a lower-cost STM32 MCU?
Choose the STM32F446RET7 when a design benefits from its verified 180 MHz Cortex-M4 performance, DSP capability, floating-point unit, and 512 KB flash while requiring the 64-pin LQFP footprint. It is a stronger fit than a basic low-speed MCU for real-time control, communications, and embedded signal-processing tasks. A lower-cost part may be preferable when those capabilities are unnecessary. Because the available excerpts omit SRAM, GPIO, timing, and peripheral details, perform a complete requirement-by-requirement comparison before making a final platform decision.
Is STM32F446RET7 the same as STM32F446RET7TR?
The supplied Findchips comparison page indicates that STM32F446RET7 and STM32F446RET7TR are related STMicroelectronics entries, but the snippet does not state that they are electrically identical. The additional TR suffix commonly needs to be interpreted from STMicroelectronics ordering documentation, which is not included in the verified excerpts. Engineers should verify whether it denotes reel or tape-and-reel ordering and compare the full orderable part details. Packaging-only variants were excluded from the alternatives list because they do not add distinct electronic design value.
Where can I buy STM32F446RET7 online?
STM32F446RET7 is listed for purchase at DigiKey, Mouser, Arrow, LCSC, ST's online store, and several authorized or independent distributors. The verified LCSC result reports a price from $5.9114 and identifies the part as in stock, while distributor inventory and pricing are time-sensitive. Current availability, authorized-channel status, and shipment terms should be confirmed at the seller before placing an order. Pricing in this record is as of 2026-10-22, and the distributor search also reported substantial third-party inventory.
What is the price of STM32F446RET7?
The verified LCSC listing states that STM32F446RET7 is available from $5.9114, and that is the only explicit unit price supplied for the MPN. The value is used consistently for the available quantity tiers because verified prices for 10, 100, 500, and 1,000 units were not provided. Pricing is as of 2026-10-22 and may change with inventory, quantity, tax, currency, and distributor terms. Contact the seller for a current executable quotation rather than treating the displayed starting price as a guaranteed volume quote.
Is STM32F446RET7 in stock and what is its lead time?
The verified LCSC search result labels STM32F446RET7 as in stock, while the Wolfchip result reported 42,170 pieces on October 7, 2026. Those statements provide availability evidence but do not establish a standardized manufacturer lead time or guarantee stock at the time of purchase. XAIPART therefore represents offer availability conservatively as back-order rather than guaranteed XAIPART-held stock. Confirm live inventory, authorized status, pack quantity, and delivery timing directly with the distributor or manufacturer before committing the BOM.
What design considerations matter for an STM32F446RET7 PCB?
The primary PCB considerations are the verified 64-pin, 10 mm by 10 mm LQFP footprint and correct implementation of the manufacturer's power, ground, reset, clock, boot, and debug connections. Decoupling and signal-integrity values must be selected from the complete electrical and application guidance rather than guessed from the search excerpt. Leave appropriate clearance around lead rows and verify assembly-line capability for the package size. Also review exposed pad or thermal requirements only if the current package drawing explicitly calls for them.
How do compliance and lifecycle status affect STM32F446RET7 sourcing?
RoHS, REACH, AEC-Q100 qualification, and current lifecycle status cannot be confirmed from the supplied product snippets, so those fields remain unknown rather than assumed. Distributor and manufacturer links should be checked for current product-status information, declarations, and notices. For medical, automotive, or regulated industrial use, obtain the exact declaration or qualification documentation for the ordered suffix. A distributor having stock does not by itself prove lifecycle status, authorized provenance, or suitability for a compliance-controlled application.

엔지니어링 참조 데이터: STM32F446RET7 — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the STM32F446RET7 when an embedded system needs a high-performance 32-bit Arm Cortex-M4 core, up to 180 MHz operation, DSP and FPU support, and 512 KB of flash in a 64-pin LQFP. It is particularly relevant to real-time industrial control, measurement, communications, and embedded signal-processing designs. A lower-cost or lower-power MCU may be preferable when the application does not need this processing capability or the larger leaded footprint. Do not substitute a similar STM32 MPN solely because it uses the same family name. Confirm the complete pinout, RAM, GPIO count, peripheral resources, electrical limits, temperature range, and qualification data from STMicroelectronics documentation. The supplied cross-reference results do not establish five verified drop-in replacements, so this page does not present unverified candidates as board-compatible alternatives.

대체품과의 비교

파라미터 이 제품
Brand STMicroelectronics
Package 64-LQFP (10 mm x 10 mm)
Maximum Clock Frequency 180 MHz
CPU Core 32-bit ARM Cortex-M4
Flash Memory 512 KB (512K x 8)
DSP Support Yes
Floating-Point Unit Yes
Verified Unit Price $5.9114 as of 2026-10-22

주요 차별점

  • High verified processing frequency (vs Lower-clock general-purpose MCUs)
  • Integrated DSP and floating-point capability (vs Basic Cortex-M microcontrollers without an FPU)
  • Substantial program memory in a leaded package (vs Compact MCUs with smaller packages)

설계 노트

Use the current STMicroelectronics land pattern for the 64-pin, 10 mm by 10 mm LQFP and verify all terminal assignments before routing. Confirm power and ground connectivity, decoupling, reset, clock, boot configuration, and debug access against the full manufacturer documentation. The search excerpts do not provide a verified terminal map, so do not infer connections from another STM32F4 model.

Design the supply network for the device's verified 2.5 V or 3.3 V operating context while checking the exact electrical limits and voltage sequence in the manufacturer datasheet. Place required bypass capacitors close to the relevant supply pins and provide clean return paths. Because regulator tolerances, transient limits, and current consumption are not supplied, select those values from the official electrical characteristics rather than estimating them.

Do not assume that any similar STM32F4 MPN is electrically or pin-compatible. Compare the exact orderable suffix, package drawing, memory configuration, peripheral set, clock limits, temperature range, and qualification status. Firmware porting also requires reviewing startup files, linker memory definitions, pin configuration, and peripheral instances; physical package equality alone does not establish a safe drop-in replacement.

Preserve short return paths and isolate clocks, sensitive analog inputs, and high-speed communications from noisy switching paths. Route decoupling connections directly to the intended pins, keep test points accessible, and check the assembly capability for the 10 mm LQFP body. Follow the manufacturer recommended layout and EMC guidance for the final peripheral mix because the supplied excerpts do not identify the complete interface set.

규정 준수 정보

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

The supplied excerpts do not provide verified compliance declarations or qualification status. Marketplace category wording, including the Arrow medical listing, is not treated as evidence of compliance or certification.

관련 검색

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관련 부품 & 용어

STMicroelectronics STM32F446RET7 STM32F4 Arm Cortex-M4 32-bit microcontroller embedded microcontroller microcontroller semiconductor DSP floating-point unit FPU real-time control industrial control data acquisition signal processing 180 MHz 512 KB flash 64-LQFP LQFP surface-mount package embedded system STM32F429VGT6 STM32F405VGT6TR KSZ8001LI
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