ATSAM3N1BA-MU - 48MHz 64KB Cortex-M3 MCU | Microchip
MPN: ATSAM3N1BA-MU ✓ Hoạt độngATSAM3N1BA-MU Tóm tắt
An ARM Cortex-M3 microcontroller is a 32-bit reduced-instruction-computing core designed for embedded control. In the product hierarchy, it combines a processor core, embedded Flash, static RAM, interrupt control, timers, communication interfaces, and GPIO into one microcontroller IC. The Cortex-M3 revision 2.0 core supports Thumb-2 instructions, while the 24-bit SysTick counter and Nested Vector Interrupt Controller support deterministic event handling in real-time firmware.
Key features include 64 KB (64K x 8) program memory, 8K x 8 RAM, 47 I/O pins, and operation up to 48 MHz. The 64-QFN package provides a compact 9x9 mm surface-mount solution, while the supplied listing identifies tray packaging. The integration of memory, GPIO, and control peripherals can reduce the number of external components in compact industrial, consumer, communications, and control products.
The device is identified as an ARM-based Flash MCU and belongs to the SAM3N family. Verified listings describe it as a 32-bit microcontroller with 64 KB Flash and 8 KB RAM. The available distributor data also identifies a 1.62 V to 3.6 V supply range for ATSAM3N1BA-MU. Detailed peripheral assignments, electrical limits, pin names, and package dimensions must be confirmed against the original Atmel or Microchip datasheet before PCB release.
Typical applications include embedded control panels, low-cost sensor nodes, communications equipment, motor and relay control, industrial automation modules, and compact consumer products. The internal oscillator and integrated memory help simplify clock and memory design, while the 47 I/O pins provide interfaces for sensors, actuators, displays, and serial transceivers. Firmware must be selected for the exact ATSAM3N1BA-MU pinout and peripheral map.
For a new layout, place decoupling close to the supply pins and route high-current or sensitive signals away from switching nodes. Before replacing another MCU, verify package dimensions, pin names, supply limits, peripheral functions, programming requirements, and bootloader compatibility. The SAM3N family is stated to be pin-to-pin compatible with the SAM3S series, but that family-level statement does not automatically establish drop-in compatibility for every MPN or package variant.
Bộ thay thế dễ dàng lắp đặt cho ATSAM3N1BA-MU — 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 ATSAM3N1BA-MU (cùng hình factor và footprint) — khác nhau ở RoHS Status, Interrupt Controller, Pin Compatibility, RAM Size, Instruction Set.
ATSAM3N1BB-MU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM3S8B-MU
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAM3S8C-MU
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAM3S8A-MU
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAM3S8B-AU
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAM3N1BA-MU Tỷ lệ tối đa & tính chất điện
| Product Type | ARM-based Flash microcontroller |
| Processor Core | ARM Cortex-M3 revision 2.0 |
| Architecture | 32-bit |
| Tần số xung maksimum | 48 MHz |
| Program Memory Size | 64 KB (64K x 8) |
| RAM Size | 8K x 8 |
| Number of I/O Pins | 47 |
| Supply Voltage Range | 1.62 V to 3.6 V |
| Oscillator Type | Internal |
| Instruction Set | Thumb-2 instruction |
| System Timer | 24-bit SysTick Counter |
| Interrupt Controller | Nested Vector Interrupt Controller |
| Hộp | 64-QFN (9x9 mm) |
| Package Family | QFN surface-mount package |
| Series | SAM3N |
| Packaging | Tray |
| Kiểu lắp đặt | Surface Mount |
| Temperature Grade | Industrial temperature option listed by distributor |
Hướng dẫn cấu hình chân ATSAM3N1BA-MU qfn surface-mount package
Cấu hình chân cho ATSAM3N1BA-MU (qfn surface-mount package 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 ATSAM3N1BA-MU.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
ATSAM3N1BA-MU phù hợp cho 6 Áp dụngs: Embedded Control Panel, Industrial Sensor Node, Communications Interface Module, Relay and Actuator Control, Human Interface and Display Control, Low-Cost Consumer Device.
Embedded Control Panel
The ATSAM3N1BA-MU fits compact control panels that need a 48 MHz ARM Cortex-M3 core, 64 KB Flash, 8 KB RAM, and 47 I/O pins. Its integrated memory and GPIO reduce the need for external logic, while the internal oscillator can simplify the base clock design. The MCU can supervise buttons, indicators, relays, and discrete sensors through firmware-selected peripheral functions. Before layout release, verify the exact 64-QFN pinout, exposed-pad requirements, supply decoupling, and any high-current output drive limits.
Được đề xuất
Industrial Sensor Node
For a small sensor node, ATSAM3N1BA-MU provides 47 I/O pins for digital sensors, interrupt inputs, status indicators, and local communications. The 8K x 8 RAM supports buffering and protocol state, while 64 KB Flash provides room for an embedded control application. The 1.62 V to 3.6 V listed supply range allows integration with low-voltage sensor systems, provided the power source meets the complete electrical requirements. Use low-leakage support components and validate clock accuracy if the measurement chain depends on timing.
Được đề xuất
Communications Interface Module
ATSAM3N1BA-MU is suitable as the control element in a communications interface module when the design needs local protocol handling, GPIO, and event-driven interrupts. The ARM Cortex-M3 revision 2.0 core and Nested Vector Interrupt Controller support interrupt-based response, while the 64 KB Flash and 8 KB RAM accommodate small protocol stacks and buffering. The exact serial peripherals, DMA resources, pin multiplexing, and maximum interface rates are not provided in the verified snippets and must be checked in the manufacturer datasheet.
Được đề xuất
Relay and Actuator Control
The 47 I/O pins and 48 MHz Cortex-M3 performance make ATSAM3N1BA-MU a candidate for relay, solenoid, and discrete actuator control boards. Firmware can combine timers, interrupts, and GPIO state machines while the integrated memory avoids unnecessary external components. Relay drivers, transistors, flyback paths, and protection networks must be designed separately because the supplied data does not state the MCU's output current or absolute maximum ratings. Confirm every connected load against the datasheet before applying power.
Được đề xuất
Human Interface and Display Control
ATSAM3N1BA-MU can manage a compact keypad, status LEDs, and a small display interface in a cost-sensitive embedded product. The 47 I/O pins provide parallel signal resources, while the Cortex-M3 core handles debouncing, menu logic, and event scheduling. The supplied data does not identify LCD, SPI, or other display peripherals, so the interface should be selected only after checking the exact pin multiplexing and timing specifications. Keep display and touch traces away from noisy switching nodes and provide local bypassing.
Được đề xuất
Low-Cost Consumer Device
The ATSAM3N1BA-MU fits low-cost consumer products that need more control capability than a basic 8-bit MCU without the cost of a high-end processor. Its 64 KB Flash, 8 KB RAM, 47 I/O pins, internal oscillator, and 64-QFN package support compact products such as accessories, appliances, and simple controllers. Cost and availability should be checked against current authorized-channel inventory. Firmware updates, ESD protection, brownout behavior, and production programming must be validated during hardware bring-up.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAM3N1BA-MU — 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 | ATSAM3N1BB-MU | ATSAM3S8B-MU | ATSAM3S8C-MU |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Series | SAM3N | SAM3N | SAM3S | SAM3S |
Bảo phân biệt quan trọng
- Integrated memory and GPIO in a compact MCU (vsATMEGA8A-AUR)
- Higher-complexity control architecture (vsATMEGA328-AU)
- Large pin count for embedded control (vsSTM8L001J3M3)
- Internal oscillator integration (vsATSAM3N1BB-MU)
Ghi chú thiết kế
The verified data identifies ATSAM3N1BA-MU as a 64-QFN 9x9 mm device, but it does not provide the complete pin table. Before routing, download the manufacturer package drawing and verify every pin name, exposed-pad connection, pin-1 orientation, and land pattern. Treat the 64-LQFP wording in one secondary snippet as a data conflict requiring resolution rather than designing to both footprints.
The verified supply range is 1.62 V to 3.6 V. Design the regulator with tolerance, startup sequencing, and transient margin appropriate to the complete datasheet limits. Place local decoupling close to the supply pins and keep return-current paths short. Because absolute maximum ratings and pin-level power requirements were not supplied here, confirm them against the original manufacturer document before connecting external loads.
Use the internal oscillator as specified, but reserve an alternate clock-connection footprint if the final design requires higher timing accuracy or a communication baud-rate tolerance beyond the internal oscillator's verified capabilities. Separate MCU supply traces from relay, motor, and switching-converter paths. If the QFN has an exposed thermal or ground pad, follow the manufacturer land-pattern and assembly requirements exactly.
Do not assume that the family-level statement that SAM3N is pin-to-pin compatible with SAM3S makes every ordering code interchangeable. Check memory size, package dimensions, peripheral multiplexing, supply range, interrupt vector layout, boot behavior, and programming requirements. The supplied cross-reference data identifies ATSAM3N1BB-MU as a related candidate but does not provide enough verified electrical or pinout detail to approve a drop-in replacement.
Thông tin tuân thủ
The supplied verified snippets do not provide authoritative compliance declarations. One comparison result mentions RoHS and REACH status for a different comparison page, but that information is not applied to ATSAM3N1BA-MU.
