ATSAM4N16CA-AU - 100MHz Cortex-M4 1MB Flash MCU | Microchip
부품 번호: ATSAM4N16CA-AU ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 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 개요
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.
드롭인 대체품: ATSAM4N16CA-AU — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: ATSAM4N16CA-AU (동일 폼 팩터 및 풋프린트) — 차이점: RoHS Status, Supply Voltage, Package, Core Processor, Operating Temperature.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
ATSAM4SD16CA-AU
✅ 드롭인✓ 재고 있음
$5.55 / 개
데이터시트 보기 →ATSAM4SD32BA-AU
✅ 드롭인✓ 재고 있음
$9.45 / 개
데이터시트 보기 →ATSAM3S8BA-AU
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$6.4 / 개
데이터시트 보기 →ATSAM3N4BA-AU
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
가격 문의
데이터시트 보기 →LM3S8962-EQC50-A2T
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ATSAM4N16CA-AU 최대 정격 & 전기적 특성
| Core Processor | ARM Cortex-M4 |
| Core Size | 32-bit |
| 최대 클록 주파수 | 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) |
| 패키지 | 100-LQFP (14x14 mm) |
| 실장 유형 | Surface Mount |
| Series | SAM4N |
| 데이터 버스 폭 | 32 bit |
| 동작 온도 | Industrial (-40C to +85C) |
| Pin Compatibility | SAM3N, SAM3S, SAM4S (100-pin), SAM7S (64-pin) legacy |
| RoHS 상태 | Compliant (Green package) |
| 할로겐 프리 | Compliant |
| ECCN | 3A991.a.2 |
ATSAM4N16CA-AU 100-lqfp (14x14 mm) 핀 구성 가이드
ATSAM4N16CA-AU(100-lqfp (14x14 mm) 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: ATSAM4N16CA-AU.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
ATSAM4N16CA-AU 적합 용도: 6 애플리케이션s: 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.
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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.
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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.
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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.
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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.
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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.
추천
추천 제품 요약
엔지니어링 참조 데이터: ATSAM4N16CA-AU — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | 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) |
주요 차별점
- 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)
설계 노트
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.
규정 준수 정보
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.