ATSAM4N8BA-AUR - 100MHz Cortex-M4 MCU 512KB Flash | Microchip
MPN: ATSAM4N8BA-AUR ✓ Hoạt độngATSAM4N8BA-AUR Tóm tắt
A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, memory, and peripherals into one chip, forming the lowest layer of the embedded-computing hierarchy: semiconductor -> microcontroller (MCU) -> embedded system. The ARM Cortex-M4 core used here is a 32-bit RISC processor optimized for deterministic real-time control, placing the ATSAM4N8B within Microchip's SAM4N family of general-purpose flash MCUs.
Key features of the ATSAM4N8BA-AUR include 512 KB (512K x 8) of embedded flash memory for code and data storage, 64 KB of SRAM for runtime variables, and a rich peripheral set for communication: six USARTs, three SPIs, and three I2C interfaces. These serial resources make the device well suited to designs that must talk to multiple external ICs simultaneously.
Technical depth comes from the Cortex-M4 architecture, which provides single-cycle multiply-accumulate DSP instructions and fast interrupt handling, allowing the 100 MHz core to handle both control loops and moderate signal processing without an external DSP. One integrated 10-channel 1 Msps-class ADC (per Microchip product data) offloads analog-to-digital conversion from external components.
Typical applications include industrial automation nodes, motor control and sensor-hub boards, consumer appliance controllers, and multi-bus communication gateways that exploit the six USARTs and three SPI ports.
A key design consideration is the industrial temperature rating (-40C to +85C per distributor data): confirm your worst-case ambient and self-heating stay within this window, and verify supply requirements in the manufacturer datasheet before finalizing power-tree design.
This page synthesizes distributor pricing, drop-in family alternatives, comparison tables, and practical design notes not found in the standard manufacturer datasheet, providing engineers with a decision-ready product profile.
Bộ thay thế dễ dàng lắp đặt cho ATSAM4N8BA-AUR — 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 ATSAM4N8BA-AUR (cùng hình factor và footprint) — khác nhau ở Package, Packaging, RoHS Status, SRAM Size, Series.
ATSAM4N8BA-AU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4N16BA-AU
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAM4N8AA-AUR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ATSAM4N16CA-CFUR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ATSAM4N8BA-AUR Tỷ lệ tối đa & tính chất điện
| Core Processor | ARM Cortex-M4 |
| Core Size | 32-Bit |
| Tần số xung maksimum | 100 MHz |
| Flash Memory Size | 512 KB (512K x 8) |
| SRAM Size | 64 KB |
| Number of USARTs | 6 |
| Number of SPI Interfaces | 3 |
| Number of I2C Interfaces | 3 |
| ADC Channels | 10 channels, 1 ADC |
| Hộp | 64-LQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Program Memory Type | FLASH |
| Trạng thái RoHS | Compliant (GREEN, per Mouser listing) |
| Packaging | Tape & Reel (MRL, per Mouser listing) |
Hướng dẫn cấu hình chân ATSAM4N8BA-AUR 64-lqfp (10x10 mm)
Cấu hình chân cho ATSAM4N8BA-AUR (64-lqfp (10x10 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 ATSAM4N8BA-AUR.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
ATSAM4N8BA-AUR phù hợp cho 6 Áp dụngs: Industrial Automation Nodes, Motor Control Systems, Multi-Bus Communication Gateways, Sensor Hubs and Data Loggers, Consumer Appliance Controllers, Test and Measurement Instruments.
Industrial Automation Nodes
The ATSAM4N8BA-AUR fits industrial automation nodes because its 100 MHz Cortex-M4 core and industrial -40C to +85C rating align with factory-floor environmental and real-time requirements. The six USARTs allow simultaneous Modbus RTU links to drives and sensors, while three SPI and three I2C interfaces connect local ADCs, EEPROMs, and displays without bus contention. In a typical node, the MCU polls field sensors over I2C at fixed intervals, processes control logic using the Cortex-M4 DSP-capable core, and reports over a USART-based fieldbus. The 512 KB flash accommodates protocol stacks plus OTA-style firmware slots, and the 64-pin LQFP offers enough GPIO for relays and status LEDs without port expanders.
Được đề xuất
Motor Control Systems
For motor control, the ATSAM4N8BA-AUR offers the 100 MHz deterministic Cortex-M4 execution and single-cycle MAC instructions needed for field-oriented control (FOC) inner loops. The integrated 10-channel ADC (1 Msps class per Microchip data) samples phase currents and bus voltage with modest external signal conditioning, while timers generate complementary PWM for inverter bridges. The 64 KB SRAM holds control-state variables, PI tuning tables, and commutation look-up tables with headroom for a lightweight RTOS. Its 512 KB flash stores parameter sets, fault logs, and bootloader code for field updates. The 64-LQFP footprint provides adequate GPIO for gate-driver enables, encoder inputs, and protective interlocks in a compact single-chip solution.
Được đề xuất
Multi-Bus Communication Gateways
The ATSAM4N8BA-AUR is a natural protocol gateway because Microchip equipped it with six USARTs, three SPIs, and three I2C interfaces - eleven independent serial engines on one chip. A gateway can, for example, bridge RS-485 field devices to a USB or Ethernet-attached upstream controller while simultaneously serving local I2C sensor buses, all without software bit-banging that would steal CPU cycles. The 100 MHz Cortex-M4 core handles framing, CRC checks, and buffering in the 64 KB SRAM, with the DMA-capable peripherals reducing interrupt load. The 512 KB flash leaves ample room for multiple protocol stacks. Industrial temperature rating makes the gateway deployable in unconditioned electrical cabinets.
Được đề xuất
Sensor Hubs and Data Loggers
As a sensor hub or data logger, the ATSAM4N8BA-AUR aggregates analog and digital sensor streams through its 10-channel ADC and triple I2C/SPI interfaces. The 1 Msps-class ADC captures fast analog signals such as vibration or pressure transients, while digital sensors (accelerometers, humidity, temperature) attach to the I2C buses. The 64 KB SRAM buffers burst data between storage writes, and the 512 KB flash retains configuration, calibration tables, and event logs. At 100 MHz, the Cortex-M4 applies filtering or threshold detection locally, transmitting only summarized results over a USART link, which cuts power and bandwidth. The industrial temperature range suits outdoor and factory loggers alike.
Được đề xuất
Consumer Appliance Controllers
Consumer appliance boards - coffee machines, air conditioners, dishwashers - benefit from the ATSAM4N8BA-AUR's balance of cost and integration. At roughly $1.78 unit pricing (LCSC, as of 2026-09-20), it delivers a 100 MHz 32-bit core that outperforms legacy 8-bit controllers while keeping BOM count low: the 10-channel ADC reads touch panels, NTC thermistors, and current shunts directly, and USARTs drive displays or Wi-Fi modules. The GREEN, RoHS-compliant LQFP-64 package supports standard lead-free reflow assembly used in high-volume consumer manufacturing. Its 512 KB flash supports UI assets, multiple language packs, and firmware update banks, extending product life through post-deployment feature upgrades without hardware revision.
Được đề xuất
Test and Measurement Instruments
In handheld meters, dongle analyzers, and bench accessories, the ATSAM4N8BA-AUR provides the acquisition and interface mix these products need: the 10-channel 1 Msps-class ADC digitizes measurement front-ends, the Cortex-M4 core applies calibration and DSP filtering at 100 MHz, and multiple USART/SPI ports drive front-panel displays, external memory, and PC connectivity. The 64 KB SRAM supports waveform capture buffers, while 512 KB flash stores calibration constants, unit firmware, and menu assets. The 64-LQFP (10x10 mm) keeps the PCB small enough for portable enclosures. Industrial -40C to +85C rating also allows these instruments to operate reliably in unconditioned field environments such as substations and job sites.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAM4N8BA-AUR — 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 | ATSAM4N8BA-AU | ATSAM4N16BA-AU | ATSAM4N8AA-AUR | ATSAM4N16CA-CFUR |
|---|---|---|---|---|---|
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | LQFP (family variant) - verify pin-map |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Frequency | ARM Cortex-M4, 100 MHz | ARM Cortex-M4, 100 MHz | ARM Cortex-M4, 100 MHz | ARM Cortex-M4, 100 MHz | ARM Cortex-M4, 100 MHz |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Bảo phân biệt quan trọng
- Eleven serial interfaces on one chip (vsATSAM4N8AA-AUR)
- Doublable flash density on the same footprint (vsATSAM4N16BA-AU)
- Industrial temperature and GREEN package (vsATSAM4N8BA-AU)
Ghi chú thiết kế
The 64-LQFP (10x10 mm) exposes power and ground on multiple corner pins; per standard Microchip SAM4 layout guidance, place a 100 nF ceramic decoupling capacitor within 2 mm of each VDD pin pair plus one bulk 4.7-10 uF capacitor near the supply entry. Keep the analog supply domain (VDDA/VDDIO ADC routing) separated with an RC or ferrite filter so the 1 Msps-class ADC achieves its rated accuracy. Route USART/SPI traces with at least 3W spacing from switching-node nets in motor-control layouts.
Confirm the memory map when substituting family variants: code linked for the ATSAM4N8BA-AUR (512 KB flash) will not relocate automatically to ATSAM4N8AA-AUR's smaller flash, and the linker script must be updated for ATSAM4N16BA-AU's 1 MB map. Also verify the supply-voltage class and pin-multiplexing table in the specific datasheet revision - identical packages can differ in peripheral muxing between family members. Always pull errata sheets from Microchip's product page before tape-out.
Estimated: a 100 MHz Cortex-M4 in this class typically draws on the order of tens of mA active; budget the regulator accordingly and verify against the datasheet's power-consumption tables for your exact clock configuration. For battery or low-power logger designs, exploit wait/sleep modes and gate the ADC between bursts; wake latency and exit-current figures are specified in the SAM4N datasheet and should anchor the duty-cycle power estimate rather than generic assumptions.
Thông tin tuân thủ
Mouser lists the part as 'LQFP, GREEN, IND TEMP, MRL' - GREEN denotes Microchip's RoHS-compliant, lead-free package. REACH, halogen-free, and conflict-minerals status require the latest Microchip compliance certificates.