ATSAM4E8EA-AUR - 120MHz ARM Cortex-M4 MCU 512KB | Microchip
MPN: ATSAM4E8EA-AUR ✓ Hoạt độngATSAM4E8EA-AUR Tóm tắt
A microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and peripherals into one chip, forming the lowest level of the embedded systems hierarchy: MCU -> embedded processor -> computing system. The SAM4E family belongs to Microchip's (formerly Atmel) SMART ARM-based MCU portfolio, targeting industrial connectivity applications that require both control performance and rich connectivity.
Key features of the ATSAM4E8EA-AUR include the ARM Cortex-M4 core with a 2 KB cache, a hardware Floating Point Unit (FPU), DSP instructions, Thumb-2 instruction set support, and a Memory Protection Unit (MPU). The high data bandwidth architecture enables deterministic real-time execution while the FPU accelerates control algorithms such as PID loops and digital filtering.
Technical depth: the Cortex-M4 core with 2 Kbytes cache reduces flash wait-state penalties at 120 MHz operation, while the MPU supports functional-safety-oriented software partitioning. Embedded flash allows in-field firmware updates without external memory.
Typical applications include industrial automation, building and factory control, gateways and connectivity nodes, and motor control systems that leverage the DSP and FPU capability of the Cortex-M4 core.
Design consideration: verify supply voltage, peripheral set, and I/O configuration against the official SAM4E datasheet before layout, and confirm the 144-LQFP (20x20) footprint dimensions against the land pattern data.
This page synthesizes distributor pricing, stock status, drop-in family alternatives, and practical design guidance not consolidated in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho ATSAM4E8EA-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 ATSAM4E8EA-AUR (cùng hình factor và footprint) — khác nhau ở RoHS Status, Core Processor, FPU.
ATSAM4E16EA-AUR
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Xem tài liệu →ATSAM4E8EA-AU
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Xem tài liệu →ATSAM4E8EA-AUR Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M4 with 2 KB cache |
| Core Size | 32-Bit |
| Tần số xung maksimum | 120 MHz |
| Program Memory Size | 512 KB (512K x 8) FLASH |
| RAM Memory Size | 128 KB |
| FPU | Yes |
| DSP Instructions | Yes |
| Instruction Set | Thumb-2 |
| Memory Protection Unit | Yes (MPU) |
| Number of ADCs | 2 |
| Số lượng chân | 144 |
| Hộp | 144-LQFP (20 x 20 mm) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant (Green, per Mouser) |
| Packaging Variant | Tape and Reel (-AUR suffix) |
Hướng dẫn cấu hình chân ATSAM4E8EA-AUR 144-lqfp (20 x 20 mm)
Cấu hình chân cho ATSAM4E8EA-AUR (144-lqfp (20 x 20 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 ATSAM4E8EA-AUR.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
ATSAM4E8EA-AUR phù hợp cho 6 Áp dụngs: Industrial Automation and Factory Control, Building and Facility Control Gateways, Motor Control Systems, Embedded Connectivity Nodes and IoT Bridges, Test and Measurement Instrumentation, Medical and Health Monitoring Devices.
Industrial Automation and Factory Control
The ATSAM4E8EA-AUR fits industrial automation nodes that must combine deterministic control with communication connectivity. Its 120 MHz ARM Cortex-M4 core with 2 KB cache and hardware FPU executes real-time control loops and protocol stacks concurrently, while the 512 KB flash and 128 KB SRAM host industrial communication firmware and data buffers. The MPU enables software partitioning between safety-relevant control code and less-critical tasks. Used as the main controller on a control board, the Cortex-M4's Thumb-2 DSP instructions accelerate filtering and monitoring algorithms; unlike general-purpose parts without an FPU, it avoids slow software floating-point emulation, cutting loop-cycle times measurably in closed-loop control applications.
Được đề xuất
Building and Facility Control Gateways
In building management gateways, the ATSAM4E8EA-AUR acts as the aggregation controller linking sensors, actuators, and upstream networks. The 120 MHz Cortex-M4 with DSP instructions and FPU handles protocol translation and time-stamped event processing, while the 512 KB embedded flash supports large, field-updatable firmware images and 128 KB SRAM buffers packet traffic. The two integrated ADCs digitize analog sensor inputs without external converters. Placed on a gateway main board as the central MCU, its embedded flash permits in-field OTA-style firmware updates; the trade-off versus larger parts is code space, which is why the pin-compatible 1 MB ATSAM4E16EA-AUR exists for headroom-constrained designs.
Được đề xuất
Motor Control Systems
The ATSAM4E8EA-AUR suits embedded motor drives that need fast, floating-point control mathematics. Field-oriented control requires trigonometric transforms executed every PWM cycle; the Cortex-M4's single-cycle DSP MAC instructions and hardware FPU at 120 MHz complete these calculations with deterministic latency, while the two on-chip ADCs sample phase currents and position feedback in parallel. With 512 KB flash, complete sensorless drive stacks and protection state machines fit on-chip. In a drive board, the MCU generates PWM outputs and runs fault monitoring; compared with MCUs lacking an FPU, it removes software floating-point overhead, tightening current-loop bandwidth in servo and industrial drive applications.
Được đề xuất
Embedded Connectivity Nodes and IoT Bridges
As a connectivity bridge, the ATSAM4E8EA-AUR mediates between field buses and network backbones. The SAM4E series high data bandwidth architecture supports sustained packet processing, and the 128 KB SRAM accommodates communication stacks plus message queues. The 120 MHz Cortex-M4 core with 2 KB cache sustains protocol handling alongside application logic without external RAM. Deployed as the host controller on a bridge PCB, its 512 KB flash hosts dual-bank firmware for safe in-field updates, and the MPU isolates the network stack from application code to improve robustness. Systems requiring additional code capacity can migrate to the pin-compatible ATSAM4E16EA-AUR without PCB changes.
Được đề xuất
Test and Measurement Instrumentation
Bench and portable instruments use the ATSAM4E8EA-AUR as the measurement and user-interface controller. The 120 MHz Cortex-M4 with DSP instructions processes sampled waveforms, applies windowing and FFT computations, and drives display and communication peripherals. The dual ADCs provide simultaneous multi-channel acquisition, and 128 KB SRAM offers capture buffers for waveform data. On an instrument main board, the FPU executes calibration and scaling math in native floating point, avoiding fixed-point implementation effort; the embedded 512 KB flash stores instrument firmware and calibration tables. Designs requiring deep waveform memory pair the MCU with external SRAM or upgrade to the 1 MB ATSAM4E16EA-AUR.
Được đề xuất
Medical and Health Monitoring Devices
Portable medical monitoring equipment benefits from the ATSAM4E8EA-AUR's balance of processing performance and integration. The Cortex-M4 FPU executes digital filtering and analysis algorithms on physiological signals in native floating point, the dual ADCs sample multiple sensor channels, and the MPU supports software partitioning between measurement code and user-interface logic. The 512 KB flash holds signal-processing firmware and data-logging code, while 128 KB SRAM buffers acquired samples. Used as the main controller on a monitor board, its embedded memory and 120 MHz throughput support continuous acquisition; the deterministic Thumb-2 execution aids timing-critical sampling loops typical of diagnostic instrumentation.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ATSAM4E8EA-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 | ATSAM4E16EA-AUR | ATSAM4E8EA-AU |
|---|---|---|---|
| Package | 144-LQFP (20 x 20 mm) | 144-LQFP (20 x 20 mm) - same | 144-LQFP (20 x 20 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | ARM Cortex-M4 @ 120 MHz | ARM Cortex-M4 @ 120 MHz | ARM Cortex-M4 @ 120 MHz |
| Flash Memory | 512 KB | 1 MB | 512 KB |
| SRAM | 128 KB | 128 KB | 128 KB |
| FPU / DSP | Yes / Yes | Yes / Yes | Yes / Yes |
| Number of ADCs | 2 | 2 | 2 |
| Packaging Delivery Format | Tape & Reel (-AUR) | Tape & Reel (-AUR) | Tray (-AU) |
Bảo phân biệt quan trọng
- Cost-optimized 512 KB flash point in the SAM4E family (vsATSAM4E16EA-AUR)
- Hardware FPU and DSP instructions on Cortex-M4 (vsCortex-M3 family members (e.g., ATSAM3S8BA-MUR))
- Reel delivery for automated assembly (vsATSAM4E8EA-AU)
Ghi chú thiết kế
The 144-LQFP (20 x 20 mm) package uses a 0.5 mm lead pitch typical of LQFP-144; generate the land pattern directly from the package drawing in the SAM4E datasheet rather than from third-party footprints, and verify courtyard dimensions before routing. Because the -AUR part ships in tape and reel, confirm your pick-and-place feeder supports 24 mm tape width for 20 x 20 mm QFP bodies. Route high-frequency peripheral signals away from the crystal and keep analog ADC traces short with a local ground reference.
Microchip explicitly recommends Revision B of the SAM4E8E for new designs, prototypes, and production - the rev note appears on the official product page. Ordering an older revision during shortage-driven secondary-market sourcing (broker stock may carry older date codes) can create subtle silicon behavior differences. Also confirm exact supply voltage range and peripheral selection from the datasheet before finalizing the power tree; do not infer these from family summaries alone.
Provide local decoupling capacitors at each supply pin pair of the 144-LQFP package per the datasheet power distribution guidance, placing the smallest ceramics closest to the pins. For the 512 KB flash device, in-application flash programming draws momentary additional current - size the regulator headroom accordingly. Estimated: verify total budget by summing core, peripheral, and I/O currents from the datasheet current-consumption tables against your rail capacity.
At 120 MHz core operation, keep the crystal/oscillator loop traces as short as possible with guard grounding, and route high-speed peripheral clocks away from ADC inputs to preserve sampling accuracy. The on-chip 2 KB cache masks flash wait states, but interrupt-latency-critical ISRs should be reviewed for flash access timing per the SAM4E datasheet system controller section.
Thông tin tuân thủ
Mouser lists the part as LQFP Green IND TEMPMRL, indicating RoHS/Green packaging. REACH, lead-free, and halogen-free declarations should be confirmed via Microchip's official material content documentation.
