ATSAM4N8CA-CFU - 100MHz Cortex-M4 512KB MCU | Microchip
料号： ATSAM4N8CA-CFU ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.1 | $6.10 |
| 10 | $5.55 | $55.50 |
| 100 | $4.9 | $490.00 |
| 500 | $4.35 | $2,175.00 |
| 1,000 | $3.85 | $3,850.00 |
ATSAM4N8CA-CFU 概述
A microcontroller unit (MCU) is a single-chip embedded computer that integrates a processor core, non-volatile program memory, RAM, and a rich set of peripherals onto one die. Within the power-management hierarchy of embedded systems, the SAM4N family sits in Atmel/Microchip's entry-point segment of the Cortex-M4-based Flash MCU portfolio, positioning itself below the SAM4S while remaining pin-to-pin compatible with the SAM3S, SAM3N and SAM7S families.
Key features include the ARM Cortex-M4 core with DSP-capable instructions, a supply voltage window of 1.62V to 3.6V (with an internal 1.2V core regulator), 100 MHz maximum core speed, 512KB of on-chip Flash for firmware, and a reduced-BOM-cost peripheral set tailored for cost-sensitive industrial designs. The -C temperature suffix denotes an industrial temperature grade, and the package is lead-free, green (halogen concern free) with MRL compliance per Microchip's product pages.
Technically, the device leverages the Cortex-M4 3-stage pipeline Harvard architecture with a nested vectored interrupt controller (NVIC), single-cycle multiply, and Thumb-2 instruction set. Compared with the SAM4S family, the SAM4N removes USB and some analog blocks to reduce cost, making it the ideal migration path when a SAM4S design does not need those features.
Typical applications include industrial control nodes, consumer appliances, metering front-ends, and general-purpose embedded control where 512KB Flash and the compact 7x7 mm VFBGA footprint support space-constrained PCB designs.
A key design consideration: the VFBGA ball grid array requires controlled-impedance, fine-pitch PCB fabrication and X-ray inspection capability; verify your contract manufacturer supports 0.8 mm pitch BGA assembly before committing to this package.
This page synthesizes distributor pricing links, drop-in cross-references within the SAM4N/SAM3S/SAM4S families, and practical packaging and assembly notes not consolidated in the manufacturer datasheet.
直接替换替代料： ATSAM4N8CA-CFU ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ATSAM4N8CA-CFU （相同外形与封装尺寸） ——差异在于 Package, RoHS Status, Instruction Set, SRAM, Core Size.
快速对比工具——选择替代料号进行并排对比：
ATSAM4N8CA-CFUR
✅ 直接替换📋 参考替代料（不在目录中）
ATSAM4N8CA-CU
✅ 直接替换✓ 有现货
$2.02 / 个
查看数据手册 →ATSAM4N8CA-AU
✅ 直接替换✓ 有现货
$3.83 / 个
查看数据手册 →ATSAM4N16CA-CFUR
✅ 直接替换✓ 有现货
$4.95 / 个
查看数据手册 →ATSAM4S8CA-CU
✅ 直接替换✓ 有现货
$6.18 / 个
查看数据手册 →ATSAM3S8BA-MUR
✅ 直接替换✓ 有现货
$5.15 / 个
查看数据手册 →ATSAM4N8CA-CFU 最大额定值与电气特性
| Core Processor | ARM Cortex-M4 |
| Core Size | 32-Bit |
| Maximum Clock Speed | 100 MHz |
| Flash Memory | 512KB (512K x 8) |
| SRAM | 64KB (64K x 8) |
| Supply Voltage Range | 1.62 V to 3.6 V |
| Core Operating Voltage | 1.2 V (internal regulator) |
| Series | SAM4N |
| Number of Pins / Balls | 100 |
| 封装 | 100-VFBGA (7x7 mm), square, ball terminal form |
| 安装类型 | Surface Mount |
| Temperature Grade | Industrial |
| Terminal Form | Ball |
| Packaging Option | Tape & Reel (CFUR variant) |
| RoHS 状态 | Compliant (EU RoHS per Abacus data) |
| REACH Status | Compliant (per Abacus data) |
| Green / MRL | GREEN, MRL A (per Mouser listing) |
| Pin Compatibility | Pin-to-pin compatible with SAM3S, SAM3N, SAM7S (per datasheet) |
ATSAM4N8CA-CFU 100-vfbga (7x7 mm), square, ball terminal form 引脚配置指南
ATSAM4N8CA-CFU（100-vfbga (7x7 mm), square, ball terminal form 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： ATSAM4N8CA-CFU.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ATSAM4N8CA-CFU 适用于 6 应用s: Industrial Control Nodes, Consumer Appliance Control, Metering and Data Logging, Embedded Sensor Hubs, Motor Control Drives, Migration from SAM3N/SAM7S Designs.
Industrial Control Nodes
The ATSAM4N8CA-CFU fits industrial control nodes where a 100 MHz Cortex-M4 executes real-time control loops and communication stacks without a higher-cost application processor. Its industrial temperature grade and 1.62V-3.6V supply tolerance accommodate noisy factory power rails, while 512KB Flash holds protocol firmware such as Modbus or CAN stacks and 64KB SRAM buffers sensor telemetry. Because the SAM4N family is pin-to-pin compatible with SAM3S and SAM4S per the Atmel datasheet, control-card designs can be scaled between cost and feature tiers without respinning the PCB. The trade-off versus the SAM4S is the loss of USB, so field firmware updates must use UART, SPI or I2C bootloaders.
推荐
Consumer Appliance Control
Consumer appliance boards - washing machines, air-conditioner indoor units, small kitchen appliances - benefit from the ATSAM4N8CA-CFU's reduced-BOM-cost positioning, which the Atmel datasheet explicitly defines as the SAM4N family's role relative to the SAM4S. The 100 MHz Cortex-M4 with DSP instructions runs sensor-fusion and motor commutation algorithms, and the 7x7 mm VFBGA package shrinks controller PCB area inside compact appliance enclosures. The 512KB Flash accommodates UI state machines plus touch-sensing libraries. Designers should weigh BGA assembly cost against QFP alternatives: the ATSAM4N8CA-AU in LQFP-100 offers the same die for manufacturers without BGA inspection capability.
推荐
Metering and Data Logging
Energy and utility metering front ends use the ATSAM4N8CA-CFU's Cortex-M4 arithmetic throughput for DSP-style RMS computation and the 64KB SRAM for interval data buffers between communication windows. The 512KB Flash provides dual-bank style firmware headroom for field-updatable meter firmware plus calibration tables, an important consideration for devices with 10-20 year service expectations. Operating from 1.62V-3.6V, the part interfaces directly with 3.3V metering ADCs and RTC circuits without level translation. The industrial temperature grade supports outdoor and panel-mounted meter enclosures. Data integrity designs should exploit the EEPROM emulation in Flash documented in the SAM4N family reference manual.
推荐
Embedded Sensor Hubs
As a sensor hub, the ATSAM4N8CA-CFU aggregates I2C/SPI sensor streams - accelerometers, pressure and gas sensors - and pre-processes them with Cortex-M4 DSP instructions before forwarding over UART or SPI to a host. The 100 MHz core handles FFT and filtering workloads that Cortex-M0 class hubs cannot sustain, and the 7x7 mm footprint fits inside compact sensor modules. Its 1.62V low-end supply operation enables battery-powered nodes running from two alkaline cells through a small regulator. Compared with the ATSAM4S8CA-CU, the SAM4N omits USB, which is typically irrelevant inside a hub module; designs needing a USB-side interface should step up to SAM4S.
推荐
Motor Control Drives
Small BLDC and stepper drives leverage the ATSAM4N8CA-CFU's single-cycle multiply and DSP instructions to execute field-oriented control at PWM frequencies typical of appliance and industrial fans. Timer capture channels feed back hall or encoder signals, and the 100 MHz core closes current loops with cycle-level determinism free of RTOS jitter when coded bare-metal. The wide 1.62V-3.6V supply lets the MCU share the gate-driver logic rail. Note that the SAM4N's peripheral set is narrower than the SAM4S's; verify the required number of PWM channels and ADC trigger resources against the SAM4N datasheet before migration from a SAM4S drive design.
推荐
Migration from SAM3N/SAM7S Designs
A primary application of the ATSAM4N8CA-CFU is performance migration: the Atmel datasheet documents pin-to-pin compatibility with SAM3S, SAM3N and SAM7S devices, so legacy boards can be upgraded by replacing the MCU and recompiling firmware. A SAM3N design moving to the SAM4N gains a 100 MHz Cortex-M4 with hardware divide and DSP instructions - roughly double the effective compute of a Cortex-M3 at similar clocks - without any PCB respin. Firmware porting effort centers on the clock-tree and peripheral register differences documented in the SAM4N family reference manual. This migration path also extends to SAM4S boards seeking reduced BOM cost when USB is unused.
推荐
推荐产品汇总
工程参考数据： ATSAM4N8CA-CFU ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ATSAM4N8CA-CFUR | ATSAM4N8CA-CU | ATSAM4S8CA-CU | ATSAM3S8BA-MUR |
|---|---|---|---|---|---|
| Brand | Microchip Technology (Atmel) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-VFBGA (7x7) | 100-VFBGA (7x7) - same | TFBGA-100 - same footprint family | TFBGA-100 - same footprint family | 100-ball BGA - pin-to-pin per datasheet |
| Core | ARM Cortex-M4 | ARM Cortex-M4 | ARM Cortex-M4 | ARM Cortex-M4 | ARM Cortex-M3 |
| Flash Memory | 512KB | 512KB | 512KB | 512KB | 512KB |
| Supply Voltage | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V | 1.62 V to 3.6 V |
| USB Peripheral | No | No | No | Yes (USB device) | Yes (USB device) |
| Temperature Grade | Industrial | Industrial | Industrial | Industrial | Industrial |
关键差异点
- Lowest-cost Cortex-M4 path in the 100-ball footprint （对比 ATSAM4S8CA-CU)
- Cross-generation pin compatibility （对比 ATSAM3S8BA-MUR)
- Memory headroom upgrade path in same footprint （对比 ATSAM4N16CA-CFUR)
- Assembly flexibility via same-die package variants （对比 ATSAM4N8CA-AU)
设计说明
The 100-VFBGA (7x7) package demands fine-pitch BGA fabrication: specify 0.8 mm ball pitch design rules, via-in-pad or dog-bone fanout, and IPC Class 2 minimum assembly. Confirm your CM supports X-ray or acoustic microscopy inspection of BGA solder joints - hidden-ball defects cannot be caught visually. Because SAM4N is pin-to-pin compatible with SAM3S/SAM4S footprints, laying out the common ball map lets you dual-populate cost tiers. Estimated: a 7x7 mm BGA with two perimeter signal rows fanouts within roughly 4 routing layers at 0.1 mm trace/space.
Supply the VDDIO/VDDCORE rails per the SAM4N datasheet power section: the part runs from 1.62V-3.6V with an internal 1.2V core regulator, so place decoupling on every VDD ball and add a bulk capacitor near the regulator. If migrating from SAM7S 3.3V-only designs, verify brown-out and supervisor thresholds against SAM4N settings. Avoid powering I/O above VDD; the wide supply range tolerates 1.8V low-power rails, but external devices on the bus must match the I/O domain.
The SAM4N omits USB and selected analog blocks present on the SAM4S - a frequent migration surprise when dropping this part onto a SAM4S board. Audit peripheral usage (USB, certain ADC channels, PWM channels) against the SAM4N datasheet before substitution. Also distinguish ordering-code suffixes: -CFU vs -CFUR differ only in packaging (tray vs tape-and-reel), but -CU and -AU are mechanically different packages (TFBGA/LQFP) and do not share the VFBGA land pattern.
Estimated: a 100 MHz Cortex-M4 in VFBGA-100 dissipates on the order of 150-300 mW under typical digital workloads, far below the thermal capability of a 7x7 mm BGA on a 4-layer PCB; no heatsink is required. Concentrate on electrical, not thermal, layout: prioritize short, matched traces to Flash-boot-critical pins and solid ground balls. For sleep-current budgets, configure the SAM4N low-power modes per the family reference manual rather than relying on static I/O states.
合规信息
Abacus Technologies data marks the ATSAM4N8CA family as EU RoHS Compliant, REACH Compliant, and DRC Conflict Free. Mouser lists the part as GREEN with MRL A. AEC-Q100 qualification is not stated in the provided data.
