ATSAM3N4AA-AU - 48MHz Cortex-M3 256KB MCU | Microchip
MPN: ATSAM3N4AA-AU ✗ Cuối đờiATSAM3N4AA-AU Tóm tắt
A microcontroller is a programmable semiconductor that integrates a processor core, memory, peripherals, and interface circuitry on one device. The ATSAM3N4AA-AU belongs to the SAM3N family and uses the ARM Cortex-M3 processor hierarchy, commonly described as an embedded microcontroller or RISC processor. Its architecture supports real-time control, communications, and general-purpose embedded processing.
The verified specifications identify a 48 MHz operating speed, 256K x 8 Flash program memory, 24K x 8 RAM, 34 I/O pins, and a 48-LQFP package. The Cortex-M3 revision 2.0 core and Thumb-2 instruction set are also identified in the supplied technical data. A 24-bit SysTick Counter and Nested Vector Interrupt Controller support deterministic timing and interrupt handling in firmware-driven systems.
The part is positioned for embedded control applications that require more processing capability than an 8-bit microcontroller while retaining a conventional 48-LQFP footprint. Its 32-bit architecture, 48 MHz clock, and integrated memory make it suitable for industrial control, data acquisition, communication equipment, and connected peripheral designs.
Because the supplied data does not include peripheral inventories, operating-temperature limits, voltage tolerances beyond the listed supply range, detailed electrical timing, or a complete pin assignment table, those values must be verified against the manufacturer datasheet before schematic release, firmware configuration, or production qualification.
This page synthesizes the supplied distributor specifications, available sourcing links, package information, and engineering-oriented guidance. It is intended to support component identification and initial design evaluation rather than replace the complete Microchip datasheet, errata documents, or application notes.
Bộ thay thế dễ dàng lắp đặt cho ATSAM3N4AA-AU — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ATSAM3N4AA-AU (cùng hình factor và footprint) — khác nhau ở Package, Core Processor, Flash Memory, Maximum Clock Frequency, SRAM.
ATSAM3S4AA-AUR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM3N1AB-AU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4N8BA-AU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4E16EA-AUR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4S8BA-AU
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Xem tài liệu →ATSAM3N4AA-AU Tỷ lệ tối đa & tính chất điện
| Product Type | 32-bit ARM Cortex-M3 microcontroller |
| Maximum Operating Frequency | 48 MHz |
| Program Memory Size | 256 KB (256K x 8) Flash |
| RAM Size | 24 KB (24K x 8) |
| Number of I/O Pins | 34 |
| Processor Core | ARM Cortex-M3 revision 2.0 |
| Instruction Set | Thumb-2 |
| Supply Voltage Range | 1.62 V to 3.6 V |
| Hộp | 48-LQFP (7 x 7 mm) |
| Oscillator Type | Internal |
| Timer | 24-bit SysTick Counter |
| Interrupt Architecture | Nested Vector Interrupt Controller |
| Manufacturer | Atmel / Microchip Technology |
| Series | SAM3N |
| Kiểu lắp đặt | Surface mount |
Hướng dẫn cấu hình chân ATSAM3N4AA-AU 48-lqfp (7 x 7 mm)
Cấu hình chân cho ATSAM3N4AA-AU (48-lqfp (7 x 7 mm) gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho ATSAM3N4AA-AU.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
ATSAM3N4AA-AU phù hợp cho 6 Áp dụngs: Industrial Control, Data Acquisition, Communication Equipment, Connected Peripherals, Data Logging, Motor and Motion Control.
Industrial Control
ATSAM3N4AA-AU fits early industrial-control designs that benefit from a 48 MHz 32-bit ARM Cortex-M3 core, 256 KB of Flash, 24 KB of SRAM, and 34 I/O pins. It can coordinate sensor acquisition, control logic, communication tasks, and supervisory functions in a compact embedded platform. The supplied data does not confirm the complete peripheral list or industrial temperature rating, so the control-loop timing, isolation requirements, EMC limits, and environmental qualification must be validated against the manufacturer datasheet before deployment.
Được đề xuất
Data Acquisition
The ATSAM3N4AA-AU can serve as the processing core of a data-acquisition controller when firmware buffering and deterministic control execution are important. Its 256 KB Flash and 24 KB SRAM provide a defined baseline for boot code, acquisition control, and intermediate data handling, while the 48 MHz Cortex-M3 core supports event-driven processing. The supplied data does not identify ADC channels, trigger inputs, or DMA resources, so analog front-end and timing decisions require the complete manufacturer documentation.
Được đề xuất
Communication Equipment
ATSAM3N4AA-AU is a reasonable starting point for embedded communication equipment requiring a 32-bit controller, 48 MHz processing, and 34 digital I/O pins. The available architecture can support protocol handling, supervisory logic, and host-side control tasks when the required serial interfaces and memory behavior match the final datasheet. Because UART, SPI, CAN, Ethernet, USB, and other peripheral availability are not included in the supplied verified data, interface selection should be based on the official pin and peripheral tables rather than model-family assumptions.
Được đề xuất
Connected Peripherals
ATSAM3N4AA-AU can be evaluated for connected peripheral controllers where local logic, sensor management, and firmware updates require more capability than a basic 8-bit MCU. Its 48 MHz Cortex-M3 core and 256 KB Flash provide room for structured application firmware, while the 34 I/O pins support external sensors, indicators, and interface devices. The supplied results do not verify security, wireless capability, bootloader features, or peripheral pin multiplexing, so those functions must be confirmed before selecting it for a connected product.
Được đề xuất
Data Logging
The ATSAM3N4AA-AU can support a compact data-logging or condition-monitoring controller when firmware must manage sampling schedules, event records, and local control functions. Its 24 KB SRAM provides a defined working-memory baseline, and the 256 KB Flash configuration supports firmware storage in a small embedded system. Actual storage endurance, external memory interface availability, write-protection strategy, and recovery behavior are not supplied, so a production logger should include verified nonvolatile storage and power-loss protection.
Được đề xuất
Motor and Motion Control
ATSAM3N4AA-AU may be evaluated for motion-control supervisory and embedded logic functions because it provides a 32-bit Cortex-M3 core operating up to 48 MHz and 34 I/O pins. The architecture can coordinate sensor inputs, control-state logic, and external actuator drivers when the required timing interfaces are confirmed. The supplied data does not list motor-control peripherals, PWM channels, encoder inputs, or timing limits, so it should not be treated as a direct motor-driver substitute without checking the full peripheral and electrical documentation.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAM3N4AA-AU — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | ATSAM3S4AA-AU | ATSAM3N1AB-AU | ATSAM4N8BA-AU | ATSAM4E16EA-AU | ATSAM4S8BA-AU |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
Bảo phân biệt quan trọng
- 48 MHz ARM Cortex-M3 processing baseline (vsATSAM3S4AA-AU)
- Explicit 34-I/O identification (vsATSAM4N8BA-AU)
- Documented SAM3N identity (vsATSAM4E16EA-AU)
Ghi chú thiết kế
Design the ATSAM3N4AA-AU power rail from the verified 1.62 V to 3.6 V supply listing, while confirming the detailed operating conditions and absolute maximum limits in the complete manufacturer datasheet. Place local bypass capacitors close to the device power pins and keep the supply path short to minimize transient impedance. If analog or communication interfaces share the rail, account for their additional current and noise requirements during regulator selection.
Use the verified 48-LQFP 7 x 7 mm package information as the starting point for layout, but obtain the official land pattern and pin table before fabrication. Keep decoupling loops compact, preserve adequate clearance between adjacent nets, and route high-current or high-speed signals away from sensitive analog traces. Do not assume that a similarly named SAM3 device has identical pin multiplexing or exposed-pad requirements.
Do not approve ATSAM3S4AA-AU, ATSAM3N1AB-AU, ATSAM4N8BA-AU, ATSAM4E16EA-AU, or ATSAM4S8BA-AU as a direct replacement based only on a shared 48-LQFP package or related family name. Verify pin names, alternate functions, memory, clocking, supply limits, peripheral resources, interrupt behavior, and firmware startup requirements. The supplied cross-reference results identify related parts but do not establish complete pin-to-pin equivalence.
The supplied information identifies an internal oscillator and 34 I/O pins but does not provide a verified pin assignment. Before PCB routing, reserve programming, reset, debug, and clock-related access according to the official datasheet. Validate all external signal directions and alternate-function selections in the final device configuration; related Microchip MPNs may differ in multiplexing even when their package names match.
Thông tin tuân thủ
Compliance information was not present in the supplied verified web data. Do not infer RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status from distributor listings.
