ATSAM4N16CA-AU - 100MHz Cortex-M4 1MB Flash MCU | Microchip
部品番号: ATSAM4N16CA-AU ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $9.2 | $9.20 |
| 10 | $8.35 | $83.50 |
| 100 | $7.45 | $745.00 |
| 500 | $6.75 | $3,375.00 |
| 1,000 | $6.15 | $6,150.00 |
ATSAM4N16CA-AU 概要
A microcontroller unit (MCU) integrates a processor core, program memory, data memory, and peripherals on a single silicon die, sitting at the heart of the embedded systems hierarchy: MCU -> embedded processor -> system-on-chip. The SAM4N family is Microchip (formerly Atmel) SMART ARM-based flash MCU portfolio, and the SAM4N16C variant is positioned as the entry point to the Cortex-M4-based flash MCU lineup.
Key features include the ARM Cortex-M4 core with hardware DSP instructions and a Thumb-2 instruction set, a Memory Protection Unit (MPU) for robust firmware partitioning, and single-cycle multiply-accumulate for digital signal processing workloads such as filtering and sensor fusion. The 1 MB flash supports field firmware updates, while the 80 KB SRAM provides generous buffering for communication stacks and control algorithms.
Technically, the ATSAM4N16CA-AU operates from a 1.62 V to 3.6 V supply (2.5 V / 3.3 V typical rails) and is specified for industrial temperature ranges (part suffix -I, green LQFP package, MRLA). The device is pin-to-pin compatible with the SAM3N, SAM3S (48/64/100-pin versions), SAM4S (64/100-pin versions), and SAM7S legacy 64-pin products, offering a low-risk migration path for existing boards seeking a performance upgrade to Cortex-M4 with DSP capability.
Typical applications include industrial control and factory automation nodes, consumer and industrial HMI panels, metering and sensing systems, and motor-adjacent control logic where DSP instructions accelerate control loops.
Design consideration: because the Cortex-M4 DSP instructions and MPU are the main deltas versus the older Cortex-M3 SAM3S parts, verify that your toolchain and CMSIS headers target the M4 core before migrating.
This page synthesizes distributor pricing, drop-in alternatives, pin-compatibility data, and practical design notes not found in a single manufacturer document.
ドロップイン代替品: ATSAM4N16CA-AU — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: ATSAM4N16CA-AU （同一形状・フットプリント） — 相違点: RoHS Status, Supply Voltage, Package, Core Processor, Operating Temperature.
クイック比較ツール — 並列比較する代替部品を選択:
ATSAM4SD16CA-AU
✅ ドロップイン✓ 在庫あり
$5.55 / 個
データシートを見る →ATSAM4SD32BA-AU
✅ ドロップイン✓ 在庫あり
$9.45 / 個
データシートを見る →ATSAM3S8BA-AU
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$6.4 / 個
データシートを見る →ATSAM3N4BA-AU
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
価格はお問い合わせください
データシートを見る →LM3S8962-EQC50-A2T
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ATSAM4N16CA-AU 最大定格＆電気的特性
| Core Processor | ARM Cortex-M4 |
| Core Size | 32-bit |
| 最大クロック周波数 | 100 MHz |
| Program Memory Size | 1 MB (1M x 8) Flash |
| SRAM Size | 80 KB |
| Supply Voltage Range | 1.62 V to 3.6 V |
| Typical Supply Rails | 2.5 V / 3.3 V |
| DSP Instructions | Yes |
| Instruction Set | Thumb-2 |
| Memory Protection Unit | Yes (MPU) |
| パッケージ | 100-LQFP (14x14 mm) |
| 実装タイプ | Surface Mount |
| Series | SAM4N |
| データバス幅 | 32 bit |
| 動作温度 | Industrial (-40C to +85C) |
| Pin Compatibility | SAM3N, SAM3S, SAM4S (100-pin), SAM7S (64-pin) legacy |
| RoHS ステータス | Compliant (Green package) |
| ハロゲンフリー | Compliant |
| ECCN | 3A991.a.2 |
ATSAM4N16CA-AU 100-lqfp (14x14 mm) ピン配置ガイド
ATSAM4N16CA-AU (100-lqfp (14x14 mm) パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: ATSAM4N16CA-AU.
詳細は データシート をご参照ください。
主な用途
ATSAM4N16CA-AU の用途: 6 件s: Industrial Control and Automation, HMI and Graphic Display Panels, Metering and Smart Sensing, Motor-Adjacent Control Logic, IoT Sensor Nodes and Gateways, Test and Measurement Instrumentation.
Industrial Control and Automation
The ATSAM4N16CA-AU fits industrial control nodes because its 100 MHz Cortex-M4 core with hardware DSP instructions executes PID loops, digital filters, and sensor-fusion algorithms that overload Cortex-M3 parts. The 1 MB flash accommodates protocol stacks (Modbus, CAN-based layers) and OTA firmware payloads, while 80 KB SRAM buffers communication and control data. Operating from 1.62 V to 3.6 V with an industrial temperature grade (green 100-LQFP, IND TEMP per Mouser), it mounts directly on existing SAM3S/SAM4S 100-pin PCBs for drop-in upgrades. Its Memory Protection Unit partitions safety-critical firmware from user tasks, improving fault containment in factory automation equipment.
おすすめ
HMI and Graphic Display Panels
Human-machine interface panels benefit from the ATSAM4N16CA-AU's combination of 1 MB flash and Cortex-M4 DSP throughput: font bitmaps, localized string tables, and drawing routines fit in internal flash without external SPI memory, and single-cycle MAC operations accelerate pixel blending and touch-filtering math. The 80 KB SRAM supports a partial-frame buffer for QVGA-class segments. Because the device is pin-to-pin compatible with 100-pin SAM3S and SAM4S parts, a display product line can span cost-optimized (SAM3N/SAM3S) and USB-capable (SAM4S) variants on one PCB, simplifying logistics while preserving the industrial temperature rating and 3.3 V operation.
おすすめ
Metering and Smart Sensing
Energy and utility meters use the ATSAM4N16CA-AU's DSP instructions to run FIR/IIR filtering and RMS computation on ADC-sampled current and voltage channels at 100 MHz, achieving accuracy classes difficult for Cortex-M3 firmware. The 1.62 V to 3.6 V supply range tolerates battery-backed supply sag during outages, and the Memory Protection Unit isolates metrology firmware from communication tasks. With 1 MB flash, multiple calibration profiles and localized display strings reside on-chip. Drop-in compatibility with 100-pin SAM4S devices (e.g., ATSAM4SD16CA-AU) lets meter platforms add USB service interfaces later without a PCB respin, protecting long-lifecycle metering designs.
おすすめ
Motor-Adjacent Control Logic
In motor-driven equipment, the ATSAM4N16CA-AU handles supervisory control, communications, and coordinate transform math (Clarke/Park using single-cycle MACs) while companion gate drivers and power MOSFETs handle the power stage. The 100 MHz core executes control loops with deterministic Thumb-2 timing, and the 80 KB SRAM buffers fault logs and telemetry. Industrial temperature rating and a 3.3 V rail match typical inverter control-board supplies. Because the SAM4N family explicitly pin-matches SAM4S 100-pin parts, the same control PCB can migrate to the USB-equipped SAM4SD16CA-AU when field firmware update over USB or richer peripherals are required, minimizing redesign cost.
おすすめ
IoT Sensor Nodes and Gateways
Battery-conscious IoT endpoints leverage the ATSAM4N16CA-AU's low-power SAM4N platform: the 1.62 V minimum supply supports direct operation from a sinking lithium cell, and 1 MB flash holds the full sensor-fusion and network-stack firmware including DSP-based preprocessing (FFT, filtering) that reduces radio airtime and energy per packet. The 80 KB SRAM accommodates TLS-class buffers for secure uplinks. The 100-pin LQFP (14x14 mm) provides enough GPIO for multiple sensor buses, and pin compatibility with SAM4S enables a shared PCB across endpoint and gateway SKUs. RoHS/green packaging supports global deployment of networked sensing hardware in commercial buildings.
おすすめ
Test and Measurement Instrumentation
Bench and portable instruments exploit the ATSAM4N16CA-AU's 100 MHz Cortex-M4 with DSP instructions for trigger decisioning, waveform averaging, and calibration-table interpolation, while 1 MB flash stores measurement firmware, GUI resources, and multi-language strings without external memory. The MPU supports partitioning of measurement-critical code, and the 80 KB SRAM buffers acquisition records ahead of USB or UART transfer - designs needing USB streaming select the pin-compatible ATSAM4SD16CA-AU on the identical 100-pin LQFP footprint. Industrial temperature range and 3.3 V single-supply operation simplify handheld instrument power design, and the Thumb-2 toolchain ecosystem (CMSIS, standard compilers) shortens firmware development cycles.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: ATSAM4N16CA-AU — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | ATSAM4SD16CA-AU | ATSAM4SD32BA-AU | ATSAM3S8BA-AU | LM3S8962-EQC50-A2T |
|---|---|---|---|---|---|
| Package | 100-LQFP (14x14 mm) | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same body, verify pinout |
| Brand | Microchip Technology (Atmel) | Microchip Technology | Microchip Technology | Microchip Technology | Texas Instruments |
| Core / Architecture | ARM Cortex-M4, 32-bit | ARM Cortex-M4, 32-bit | ARM Cortex-M4, 32-bit | ARM Cortex-M3, 32-bit | ARM Cortex-M3, 32-bit |
| Max Clock Frequency | 100 MHz | 120 MHz | 120 MHz | 96 MHz | 50 MHz |
| Flash Memory | 1 MB | 1 MB (dual bank) | 2 MB (dual bank) | 512 KB | 256 KB |
| SRAM | 80 KB | 128 KB | 160 KB | 96 KB | 64 KB |
| USB Peripheral | No | Yes (USB device) | Yes (USB device) | Yes (USB device) | Yes (USB host/device) |
| DSP Instructions | Yes (Cortex-M4) | Yes (Cortex-M4) | Yes (Cortex-M4) | No (Cortex-M3) | No (Cortex-M3) |
| Lifecycle Status | Active | Active | Active | Active (legacy positioning) | Not recommended for new designs (TI Stellaris legacy) |
主な差別化要因
- Cortex-M4 DSP performance at mainstream cost （vs ATSAM3S8BA-AU)
- Lowest-cost general-purpose positioning in the 100-pin SAM4 family （vs ATSAM4SD16CA-AU)
- Memory headroom over legacy alternatives （vs LM3S8962-EQC50-A2T)
設計ノート
When migrating from SAM3S/SAM3N Cortex-M3 boards, remember that the SAM4N16C is a Cortex-M4 with a different NVIC priority scheme and system header files. Regenerate startup code and CMSIS headers for the M4 core, and re-verify any cycle-count-based timing loops because DSP instructions change effective execution speed. The SAM4N lacks USB - if your SAM3S-based board used its USB device port, the ATSAM4N16CA-AU is NOT a functional drop-in; use the pin-compatible ATSAM4SD16CA-AU instead.
The device operates from 1.62 V to 3.6 V; for 3.3 V systems, decouple each VDD/VDDIO pin pair with 100 nF ceramics placed within 2 mm of the pins, plus bulk 4.7-10 uF near the supply entry. Estimated: at 100 MHz with typical active current, a decoupling network of one 10 uF plus per-pin 100 nF keeps supply ripple well within spec for flash-execution workloads. Confirm exact per-mode current figures in the manufacturer datasheet electrical characteristics section before finalizing the power budget.
The 100-LQFP (14x14 mm, 0.5 mm pitch) footprint is shared with 100-pin SAM3S/SAM4S parts per Microchip's compatibility statement - lay out the land pattern once and qualify multiple MCU SKUs on one PCB. Provide a solid ground plane under the package and keep high-speed clock traces (crystal, main oscillator) short and guarded. Sweep all unused GPIO as inputs with pull-ups during early bring-up to avoid contention, then configure per your schematic. Follow the Microchip SAM4N hardware design guidelines for oscillator loading capacitor selection.
Estimated: a Cortex-M4 MCU at 100 MHz typically dissipates well under 300 mW in flash-execution workloads from a 3.3 V rail, so the 100-LQFP package needs no heatsink; a standard 2 oz copper ground pour provides ample margin. Verify against the datasheet maximum junction temperature and theta-JA for your stack-up if the device runs at maximum clock with all peripherals enabled continuously in a sealed industrial enclosure.
コンプライアンス情報
Mouser lists the package as GREEN, IND TEMP, MRLA (RoHS green). Globalspec cross-reference data confirms Halogen Free: Compliant. REACH and conflict-minerals declarations not stated in provided data.