ATSAM4E8EB-CNR - 120MHz Cortex-M4 MCU 512KB Flash | Microchip (Tape & Reel)
MPN： ATSAM4E8EB-CNR ✓ 啟用中ATSAM4E8EB-CNR 概覽
A microcontroller unit (MCU) is a single-chip embedded computer that integrates a processor core, memory, and programmable peripherals on one die, sitting within the broader hierarchy of semiconductor devices: Cortex-M4 core -> ARM 32-bit MCU -> microcontroller -> embedded processor. The SAM4E series belongs to Atmel (now Microchip) SMART ARM-based Flash MCU family, designed for connectivity-centric embedded systems.
Key features include the high-performance Cortex-M4 core with hardware floating point unit (FPU), 2KB instruction cache for improved flash execution efficiency, and 128KB of SRAM for data buffering. The SAM4E family integrates advanced connectivity peripherals, most notably a 10/100 Ethernet MAC, alongside UART, USART, SPI, I2C (TWI) and CAN interfaces, plus a 12-bit ADC and PWM channels for control tasks. The device operates from 1.2V, 2.5V, and 3.3V supply domains per the Arrow listing, with extended temperature support per Mouser data.
Technically, the SAM4E achieves 1.25 DMIPS/MHz from the Cortex-M4 pipeline, and the 2KB cache allows zero-wait-state execution from Flash at 120 MHz, mitigating flash access latency. The Ethernet MAC with DMA offloads network stack processing from the CPU, making it well suited for connected industrial nodes.
Typical applications include industrial Ethernet gateways, building automation and HVAC controllers, networked sensor nodes, and motor-control systems where the FPU accelerates control-loop math.
Design consideration: BGA packages require controlled-impedance PCB stackups and X-ray inspection capability; plan the fanout strategy early and consider the LQFP-packaged SAM4E8EA sibling if BGA assembly is not available.
This page synthesizes distributor availability, drop-in family alternatives, pricing tiers, and practical design notes not found in the manufacturer datasheet. Pricing shown as of 2026-09-20.
直接替換替代品，適用於 ATSAM4E8EB-CNR — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ATSAM4E8EB-CNR （相同外形與佔位） — 差異在於 Core Processor, Flash Memory, Package, Supply Voltage, Temperature Grade.
ATSAM4E16EB-CN
✅ 直接替換聯絡詢價
查看資料表 →ATSAM4E8EB-CNR 最大額定值與電氣特性
| Core Processor | ARM Cortex-M4 with FPU |
| Core Size | 32-bit |
| 最大時脈頻率 | 120 MHz |
| Flash Memory | 512KB (512K x 8) |
| SRAM | 128KB |
| Cache | 2KB |
| Series | SAM4E |
| 供應電壓 | 1.2V / 2.5V / 3.3V |
| 封裝 | 144-LFBGA (10x10 mm) |
| 安裝類型 | Surface Mount |
| Temperature Grade | Extended (EXT TEMP) |
| Ethernet | 10/100 Ethernet MAC |
| Connectivity Peripherals | UART, USART, SPI, TWI (I2C), CAN |
| Package Color / MSL | Green package, MRL B |
| Packaging | Tray |
ATSAM4E8EB-CNR green package, mrl b 腳位配置指南
ATSAM4E8EB-CNR（green package, mrl b 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： ATSAM4E8EB-CNR.
請參閱 資料表 以查看完整腳位配置。
典型應用
ATSAM4E8EB-CNR 適用於 6 應用s: Industrial Ethernet Gateways, Building Automation Controllers, Networked Sensor Nodes, Motor Control Systems, Medical and Lab Instrumentation, Consumer and IoT Connected Devices.
Industrial Ethernet Gateways
The ATSAM4E8EB-CNR fits industrial Ethernet gateway designs because its integrated 10/100 Ethernet MAC with DMA offloads frame handling from the 120 MHz Cortex-M4 core, while 512KB Flash stores protocol stacks such as Modbus TCP or PROFINET wrappers. The FPU accelerates protocol-layer math and data conversion. In a typical topology the MCU connects over RMII to an external PHY and bridges field buses via its CAN and USART peripherals. The trade-off versus a higher-integration SoC is lower power and simpler certification, at the cost of needing an external PHY.
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Building Automation Controllers
Building automation and HVAC controllers benefit from the ATSAM4E8EB-CNR's combination of Ethernet connectivity, CAN interfaces, and 128KB SRAM for network buffering. The 120 MHz Cortex-M4 with FPU executes PID control loops for damper and valve actuation while the Ethernet MAC reports to BMS supervisory systems. Extended temperature rating (EXT TEMP per Mouser data) suits rooftop and mechanical-room environments. The 144-LFBGA package keeps board area under 10x10 mm of die footprint, allowing compact controller PCBs; designers must budget for BGA assembly capability in production.
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Networked Sensor Nodes
Distributed sensing systems use the ATSAM4E8EB-CNR to aggregate analog and digital sensor data and stream it over Ethernet. The 12-bit ADC samples process variables while 128KB SRAM buffers burst data, and the 512KB Flash stores both the application and a lightweight TCP/IP stack. The 2KB cache sustains zero-wait-state execution at 120 MHz from Flash, improving real-time sampling determinism. Power-sensitive battery nodes should instead consider SAM L or SAM D families; this part is optimal for line-powered nodes where Ethernet cabling already exists.
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Motor Control Systems
The Cortex-M4 FPU in the ATSAM4E8EB-CNR executes field-oriented control (FOC) math in floating point at 120 MHz, enabling sensorless PMSM and BLDC drives without fixed-point conversion effort. PWM peripherals generate complementary outputs with dead-time for three-phase inverters, and the ADC synchronizes current sampling to PWM cycles. Ethernet allows drive integration into Industry 4.0 monitoring networks. Designers should verify ADC trigger and PWM peripheral allocation in the SAM4E datasheet against their modulation scheme, as peripheral channel counts determine achievable control-loop rates.
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Medical and Lab Instrumentation
Benchtop lab instruments and networked medical devices use the ATSAM4E8EB-CNR for its deterministic 120 MHz real-time core, FPU-accelerated signal processing, and Ethernet port for data upload to LIS/HIS systems. The 512KB Flash accommodates measurement algorithms plus a full UI, while 128KB SRAM holds waveform buffers. The 12-bit ADC front-end suits moderate-accuracy acquisition; higher-resolution measurements typically add an external delta-sigma ADC over SPI. Extended temperature tolerance also supports sterilization-adjacent enclosures, and the BGA package keeps the main board compact.
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Consumer and IoT Connected Devices
Smart appliances, networked audio accessories, and IoT hubs leverage the ATSAM4E8EB-CNR when wired Ethernet is preferred over wireless for reliability. The 3.3V supply rail simplifies power design, and the rich USART/SPI/TWI set interfaces touch controllers, displays, and external Flash for assets. The FPU shortens audio filtering and control algorithms development time. The 144-ball LFBGA requires reflow assembly, so cost-driven consumer products with simple assembly lines may prefer LQFP siblings like ATSAM4E8EA-CU; choose the BGA when board area is the binding constraint.
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推薦產品摘要
工程參考資料，適用於 ATSAM4E8EB-CNR — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ATSAM4E16EB-CN | ATSAM4E8EB-CNRR |
|---|---|---|---|
| Package | 144-LFBGA (10x10 mm) | 144-LFBGA (10x10 mm) - same | 144-LFBGA (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | ARM Cortex-M4 with FPU, 32-bit | ARM Cortex-M4 with FPU, 32-bit | ARM Cortex-M4 with FPU, 32-bit |
| Max Clock | 120 MHz | 120 MHz | 120 MHz |
| Flash Memory | 512KB | 1024KB (+100%) | 512KB |
| Ethernet | 10/100 MAC | 10/100 MAC | 10/100 MAC |
| Temperature Grade | Extended (EXT TEMP) | Extended | Extended |
主要差異化特點
- Lowest-cost entry into SAM4E Ethernet MCU family (對比ATSAM4E16EB-CN)
- Integrated FPU on Cortex-M4 at 120 MHz (對比Cortex-M3 based competitors (e.g., STM32F2 class))
- Extended temperature qualification (對比Standard commercial-grade MCUs)
設計說明
The 144-LFBGA (10x10 mm, 1.4 mm thick) uses 0.8 mm ball pitch, so fanout requires either via-in-pad or dog-bone escape routing on at least a 4-layer PCB with dedicated power and ground planes. Trace geometry must match the BGA escape pitch, and assembly requires X-ray or AOI inspection for solder-ball integrity. If your production line cannot handle BGA rework, consider the LQFP-144 ATSAM4E8EA-CU, which is functionally equivalent but changes the footprint.
Per the Arrow listing, the device uses 1.2V (core), 2.5V, and 3.3V supply domains. Typically the 1.2V core rail is generated by the on-chip regulator from 3.3V with an external filter capacitor per the datasheet - verify the VDDCORE connection in the SAM4E datasheet before layout. Decouple each VDD/VDDIO ball with 100 nF placed within 2 mm of the ball, plus bulk 10 uF near the part. Sequencing and brown-out behavior should be validated at minimum and maximum ambient temperatures.
Estimated: engineers migrating firmware from SAM4E parts with more Flash to the 512KB ATSAM4E8E occasionally exceed code space after adding TLS or OTA banking - size your linker map early or select the ATSAM4E16EB-CN drop-in with 1MB. Also, MSL rating means BGA units must be baked before reflow if floor-life is exceeded, otherwise popcorn cracking can occur during reflow. Follow the moisture-barrier-bag handling flow per J-STD-033 for open trays.
合規資訊
Mouser listing indicates GREEN package (RoHS-typical designation) but explicit RoHS/REACH certificates were not present in the verified data; consult Microchip's product page for official compliance documentation.
