ATSAM4CMS16CB-AU - Dual-Core Cortex-M4 120MHz MCU | Microchip
부품 번호: ATSAM4CMS16CB-AU ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $8.92 | $8.92 |
| 10 | $8.02 | $80.20 |
| 100 | $6.95 | $695.00 |
| 500 | $6.32 | $3,160.00 |
| 1,000 | $5.8 | $5,800.00 |
ATSAM4CMS16CB-AU 개요
A microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and peripherals into one chip, forming the heart of embedded systems. The SAM4CM sits within the broader hierarchy of ARM Cortex-M based 32-bit MCUs, part of Microchip's SAM4 family, and is specifically architected as a system-on-chip (SoC) solution for metering applications where signal processing and communications firmware must run in independent, isolated partitions.
Key features include the unique dual ARM Cortex-M4/M4F core architecture, which allows metrology (DSP-heavy) computation and application/communications code to execute on separate cores; hardware cryptographic acceleration as highlighted by distributors (CRYPTO designation); and a supply range of 1.62V to 3.6V per verified distributor data. The on-chip cache and up to 2 MB Flash support capability in the wider family gives headroom for complex firmware images.
According to Microchip, the SAM4CMS16 is a system-on-chip solution for residential and single-phase metering applications achieving up to class 0.2 metrology accuracy over a dynamic range of 3000:1 across an industrial temperature range. The dual-core partitioning enables secure, independent firmware domains that simplify metering certification workflows.
Typical applications include single-phase energy meters, smart grid endpoints, industrial power monitoring, and general-purpose control tasks benefiting from dual-core isolation and DSP instructions.
Design consideration: choose the CM (metering) variant only when class 0.2 measurement or core isolation is genuinely required; the single-core SAM4S in the same LQFP-100 footprint is a lower-cost fit for general control.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
드롭인 대체품: ATSAM4CMS16CB-AU — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: ATSAM4CMS16CB-AU (동일 폼 팩터 및 풋프린트) — 차이점: Core Processor, Core Size, Series, Application Target, Package Shape.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
ATSAM4CMS16CA-AU
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
ATSAM4CMS16CB-AUR
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ATSAM4C16CB-AU
✅ 드롭인✓ 재고 있음
$5.85 / 개
데이터시트 보기 →ATSAM4C16CA-AU
✅ 드롭인✓ 재고 있음
$9.56 / 개
데이터시트 보기 →ATSAM4S16CB-AU
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ATSAM4CMS16CB-AU 최대 정격 & 전기적 특성
| Core Processor | ARM Cortex-M4/M4F, dual-core |
| Core Size | 32-bit |
| 최대 클록 주파수 | 120 MHz |
| Program Memory Size | 1 MB (1M x 8) Flash |
| RAM Size | 128 KB |
| Supply Voltage Range | 1.62 V to 3.6 V |
| Series | SAM4CM |
| 패키지 | 100-LQFP (14x14 mm) |
| 실장 유형 | Surface Mount |
| 동작 온도 | -40C to +85C (industrial) |
| 핀 수 | 100 |
| Terminal Form | Gull Wing |
| Package Shape | Square (LFQFP) |
| Crypto | Yes (CRYPTO designation) |
| Application Target | Single-phase metering, class 0.2 accuracy, 3000:1 dynamic range |
| Temperature Grade | Industrial |
| RoHS 상태 | Green (RoHS compliant per distributor listing) |
ATSAM4CMS16CB-AU square (lfqfp) 핀 구성 가이드
ATSAM4CMS16CB-AU(square (lfqfp) 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: ATSAM4CMS16CB-AU.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
ATSAM4CMS16CB-AU 적합 용도: 6 애플리케이션s: Single-Phase Smart Energy Meters, Industrial Power Monitoring, Secure IoT Gateways and Grid Endpoints, Dual-Core Partitioned Embedded Control, Battery-Powered and Portable Instrumentation, Smart Home Energy Submeters.
Single-Phase Smart Energy Meters
The ATSAM4CMS16CB-AU was purpose-built for this application: per Microchip, the SAM4CMS16 achieves up to class 0.2 metrology accuracy over a dynamic range of 3000:1 in residential and single-phase metering across the industrial temperature range. The dual Cortex-M4/M4F cores let the signal-processing metrology firmware (FFT, filtering, RMS computation) run in a partition isolated from the communications and application stack, which simplifies utility certification and firmware updates without compromising measurement integrity. The hardware crypto block secures DLMS/COSEM communications and secure firmware boot. Place the MCU at the heart of the metering board with a precision analog front end; the on-chip cache sustains deterministic DSP throughput at 120 MHz without external memory for typical metering images.
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Industrial Power Monitoring
Three-phase and single-phase power quality monitors benefit from the ATSAM4CMS16CB-AU's dual-core architecture: one Cortex-M4 core executes continuous voltage/current sampling and harmonic analysis while the second handles Modbus RTU/TCP, logging, and human-machine interface tasks. The 1 MB Flash accommodates both the DSP measurement library and a full communication stack simultaneously, and the 128 KB SRAM supports buffering of waveform captures. The industrial -40C to +85C rating and Green RoHS LQFP-100 package suit panel-mounted equipment. The class 0.2-class metrology datapath means accuracy demanded by billing-grade submeters is available without a dedicated metering ASIC, reducing bill-of-materials count; the trade-off is higher unit cost than the single-core SAM4S in the same footprint.
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Secure IoT Gateways and Grid Endpoints
The ATSAM4CMS16CB-AU's hardware cryptographic acceleration (CRYPTO designation per distributor listings) makes it attractive for grid endpoints, concentrators, and IoT gateways that must authenticate firmware and encrypt telemetry. One Cortex-M4 core can run the communications stack (RS-485, PLC, or cellular modems over UART/USB) while the second core isolates security-critical key handling and application logic. The 1.62V to 3.6V supply range simplifies powering from industrial 3.3V rails, and the 120 MHz clock with on-chip cache delivers adequate headroom for TLS-class workloads. The 100-pin LQFP provides sufficient GPIO and peripherals to bridge multiple field buses in a single device, consolidating functions that would otherwise require a separate security IC.
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Dual-Core Partitioned Embedded Control
Any embedded control system that benefits from running safety- or certification-relevant code in an isolated partition from user-facing firmware is a fit for the ATSAM4CMS16CB-AU. The dual ARM Cortex-M4/M4F architecture, described by distributors as supporting 'implementation of signal processing, application and communications firmware in independent partitions,' enables functional separation without a second chip. The floating-point (M4F) capability accelerates control loops and sensor fusion, while 1 MB Flash leaves room for over-the-air update images. Compared to running two discrete MCUs, this part cuts board area, simplifies inter-core messaging over on-chip fabric, and reduces sourcing complexity - a meaningful advantage in industrial drives, HVAC controllers, and medical monitoring front ends.
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Battery-Powered and Portable Instrumentation
The wide 1.62V to 3.6V supply range and 32-bit Cortex-M4 efficiency make the ATSAM4CMS16CB-AU viable in battery-operated instruments such as portable power analyzers, clamp meters, and data loggers. Running from a single Li-ion cell (3.0V to 3.6V fresh-to-empty window) or a 3.3V LDO rail keeps the power tree simple. The M4F core's single-cycle MAC and floating-point unit accelerate calibration math and waveform math in handheld test tools, while dual-core partitioning lets a low-duty-cycle second core manage housekeeping tasks. The industrial temperature rating tolerates field conditions, and the 100-pin LQFP exposes enough ADC channels and GPIO for multi-signal front ends in a 14x14 mm footprint.
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Smart Home Energy Submeters
Smart-home energy monitoring hubs and DIN-rail submeters use the ATSAM4CMS16CB-AU to deliver billing-adjacent accuracy (class 0.2 over 3000:1 dynamic range per Microchip) while running Wi-Fi, Zigbee, or Ethernet bridge firmware on the second core. The dual-core isolation allows the measurement partition to be validated once and left untouched while consumer features (mobile app protocols, OTA updates) evolve rapidly. The crypto engine protects against meter-tampering attacks that are increasingly regulated in residential metering. With 1 MB Flash there is headroom for both the metrology library and a full TCP/IP stack with TLS, avoiding external Flash in compact designs, and the industrial-grade LQFP-100 package supports automated reflow assembly in volume.
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추천 제품 요약
엔지니어링 참조 데이터: ATSAM4CMS16CB-AU — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | ATSAM4CMS16CA-AU | ATSAM4C16CB-AU | ATSAM4C16CA-AU | ATSAM4S16CB-AU |
|---|---|---|---|---|---|
| Package | 100-LQFP (14x14 mm) | 100-LQFP (14x14 mm) - same | 100-LQFP - same | 100-LQFP - same | 100-LQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology (Atmel legacy) | Microchip Technology (Atmel legacy) | Microchip Technology |
| Core Architecture | Dual-core ARM Cortex-M4/M4F | Dual-core ARM Cortex-M4/M4F | Single-core ARM Cortex-M4 | Single-core ARM Cortex-M4 | Single-core ARM Cortex-M4 |
| Max Clock Frequency | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| Hardware Crypto | Yes (CRYPTO designation) | Yes (CRYPTO designation) | Yes (Smart Energy Metering family) | Yes (Smart Energy Metering family) | No (general-purpose SAM4S) |
| Target Application | Class 0.2 single-phase metering, 3000:1 dynamic range | Class 0.2 single-phase metering | Smart energy metering (single-core) | Smart energy metering (single-core) | General-purpose embedded control |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C (industrial) | Industrial | Industrial | Industrial |
주요 차별점
- Dual-core Cortex-M4/M4F with independent firmware partitions (vs ATSAM4S16CB-AU)
- Class 0.2 metrology accuracy with 3000:1 dynamic range (vs ATSAM4S16CB-AU)
- Higher SRAM configuration than same-class single-core parts (vs ATSAM4C16CB-AU)
설계 노트
Do not assume dual-core equivalence when substituting single-core SAM4C or SAM4S parts on the same LQFP-100 footprint. Although the electrical footprint is pin-compatible, the firmware must be substantially re-architected: dual-core partitioning, inter-core communication, and the metrology library are SAM4CM-specific. If class 0.2 metering certification is a project requirement, only SAM4CM variants preserve the validated measurement path. Re-verify peripheral pin multiplexing against the SAM4CM datasheet before finalizing the PCB, even for same-family swaps.
Design the supply for a nominal 3.3V rail within the verified 1.62V to 3.6V operating range. Metering applications demand stable analog supply for measurement accuracy - Microchip's class 0.2 claim over 3000:1 dynamic range assumes clean power. Place local 100 nF ceramic decoupling at each supply pin pair plus bulk 10 uF per rail. Avoid routing noisy communications or relay-driver currents under the MCU. Estimated: at 120 MHz, core current is on the order of tens of milliamps (verify exact figure in the datasheet power chapter); size the regulator with margin for both cores active.
The 100-LQFP (14x14 mm, 0.5 mm pitch) package requires careful fanout: use 4-mil trace/spacing for escape routing between adjacent pins, and consider a via-in-pad-free dog-bone fanout on a 4-layer board. Reserve ground pour under the device and stitch vias around the perimeter to contain EMI from the 120 MHz core clock - important in metering products subject to conducted/radiated emissions limits. Keep the crystal or oscillator traces short and guarded. Microchip's SAM4 family reference designs for metering provide proven layout patterns worth replicating.
The LQFP-100 plastic package relies on PCB copper for heat spreading. Estimated: a dual-core Cortex-M4 at 120 MHz dissipates on the order of 100-300 mW typical, which with a 14x14 mm LQFP thermal resistance of roughly 50-60 C/W (verify exact theta-JA in the datasheet) yields a junction rise of only a few tens of degrees - generally safe at industrial ambient up to +85C only if ambient does not stack with full load. In sealed meter enclosures, verify junction temperature with worst-case ambient, and reduce core clock or duty-cycle unused cores if margin is tight.
규정 준수 정보
Mouser lists the part as Green, industrial temperature, RoHS packaging. Formal REACH, halogen-free, and conflict-minerals declarations should be requested from Microchip compliance documentation; distributor snippets do not confirm these.