ATSAM4CMS8CC-AUR - Dual-Core Cortex-M4 Metering MCU | Microchip
부품 번호: ATSAM4CMS8CC-AUR ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $4.85 | $4.85 |
| 10 | $4.55 | $45.50 |
| 100 | $4.25 | $425.00 |
| 500 | $3.95 | $1,975.00 |
| 1,000 | $3.62 | $3,620.00 |
ATSAM4CMS8CC-AUR 개요
A microcontroller (MCU) is a complete computing system on a single chip, combining a processor core, memory, and peripherals. The SAM4CM series belongs to the metering SoC tier of the broader ARM Cortex-M microcontroller family, which spans entry-level Cortex-M0+ parts up to high-performance Cortex-M7 devices. Metering SoCs add metrology-grade analog front ends and security features not found in general-purpose MCUs.
Key features include dual independent Cortex-M4 cores that allow one processor to run metrology algorithms while the other handles application logic, communication, and UI tasks, improving real-time determinism. The hardware crypto engine accelerates AES-class encryption for secure data logging and anti-tamper designs required in utility infrastructure. The industrial temperature grade (-40C to +85C) and RoHS-compliant green LQFP package support harsh outdoor meter environments.
Architecturally, the ATSAM4CMS8 extends Atmel/Microchip's SAM4 family, sharing peripherals, toolchains, and software with single-core SAM4S devices, which simplifies migration. The second core offloads fixed-point DSP metrology computations such as RMS, power, and energy accumulation, leaving the primary core free for protocol stacks like DLMS/COSEM.
Typical applications include single-phase residential smart meters, industrial sub-metering panels, and power-quality monitoring nodes where accuracy class 0.2 and secure firmware are mandated. Its Flash density also supports over-the-air firmware update images in the field.
Design consideration: dual-core resource arbitration must be planned early - use the shared SRAM with hardware semaphores and reserve the metrology core's interrupt budget, as documented in the Microchip SAM4CM family datasheet.
This page synthesizes distributor pricing from five sources, drop-in family alternatives, and practical design guidance not found in the manufacturer datasheet alone. Pricing as of 2026-09-20.
드롭인 대체품: ATSAM4CMS8CC-AUR — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: ATSAM4CMS8CC-AUR (동일 폼 팩터 및 풋프린트) — 차이점: RoHS Status, SRAM.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
ATSAM4CMS8CA-AUR
✅ 드롭인✓ 재고 있음
$5.92 / 개
데이터시트 보기 →ATSAM4CMS4CC-AUR
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
ATSAM4CMS4CA-AUR
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
ATSAM4CMS8CC-CUR
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
ATSAM4CMS8CC-AUR 최대 정격 & 전기적 특성
| Core Architecture | 32-bit dual-core ARM Cortex-M4 |
| Core Series | ARM SAM4CM (Cortex-M4/M4F) |
| 최대 클록 주파수 | 120 MHz |
| Flash Memory | 512 KB (512K x 8) |
| SRAM | 128 KB |
| 패키지 | 100-LQFP (14x14 mm) |
| 실장 유형 | Surface Mount |
| 동작 온도 | -40C to +85C (industrial) |
| Crypto Engine | Yes (hardware cryptographic accelerator) |
| Target Application | Residential and single-phase metering SoC, class 0.2, 3000:1 dynamic range |
| Family | SAM4CM (extension of SAM4 family) |
| RoHS 상태 | Compliant (Green package per Mouser listing) |
ATSAM4CMS8CC-AUR 100-lqfp (14x14 mm) 핀 구성 가이드
ATSAM4CMS8CC-AUR(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: ATSAM4CMS8CC-AUR.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
ATSAM4CMS8CC-AUR 적합 용도: 6 애플리케이션s: Single-Phase Residential Smart Meters, Industrial Sub-Metering Panels, Power Quality Monitoring Nodes, Secure IoT Gateways for Utility Networks, Smart Lighting and Load Control Modules, EV Charging Station Metering Subsystems.
Single-Phase Residential Smart Meters
The ATSAM4CMS8CC-AUR is purpose-built for residential and single-phase energy metering, delivering class 0.2 metrology accuracy over a 3000:1 dynamic range per Microchip's product documentation. One Cortex-M4 core runs continuous RMS, active/reactive power, and energy accumulation algorithms with deterministic timing, while the second core handles DLMS/COSEM communication stacks, LCD driving, and tamper detection. The hardware crypto engine secures consumption data and firmware authentication required by utility certification schemes. Operating from -40C to +85C in a 14x14 mm LQFP-100, it consolidates metrology, security, and application processing that would otherwise require multiple chips, cutting meter BOM cost and board area. The 512 KB Flash accommodates field-updatable firmware images with dual-bank update schemes for OTA upgrades in deployed meters.
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Industrial Sub-Metering Panels
In industrial sub-metering and energy-audit panels, the ATSAM4CMS8CC-AUR provides the same class 0.2 measurement accuracy demanded by billing-grade residential meters, applied to departmental load monitoring and cost allocation. Its dual-core split keeps metrology DSP routines isolated from Modbus/RS-485 protocol handling, preventing communication interrupts from corrupting energy integration over the 3000:1 dynamic range. The industrial -40C to +85C temperature grade suits distribution cabinets in unconditioned factory environments. The 100-pin LQFP-100 exposes enough GPIO and peripheral multiplexing for pulse outputs, RS-485 transceiver control, and local HMI. Hardware-accelerated cryptography protects tariff data and supports secure remote reading infrastructure demanded by commercial energy-management contracts and ISO 50001-type monitoring programs.
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Power Quality Monitoring Nodes
For distributed power-quality sensors and monitoring nodes, the ATSAM4CMS8CC-AUR's dual Cortex-M4 cores at 120 MHz provide the throughput to sample voltage and current channels and compute harmonic, sag/swell, and frequency-deviation metrics in real time. The metrology front-end design achieves class 0.2 accuracy across a 3000:1 dynamic range, so low-current standby loads are measured as reliably as peak loads. The 128 KB SRAM buffers waveform captures for event logging, while the 512 KB Flash stores threshold tables and event records. The crypto engine authenticates data uploaded to cloud analytics platforms, and the industrial LQFP-100 package mounts on compact DIN-rail sensor boards operating from -40C to +85C in outdoor and switchgear environments.
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Secure IoT Gateways for Utility Networks
Utility data-concentrator and gateway designs leverage the ATSAM4CMS8CC-AUR's hardware cryptographic engine to authenticate metering traffic at the network edge. One Cortex-M4 core runs the secure protocol stack (TLS sessions, certificate handling) while the second core manages metering-data aggregation from downstream meters, giving predictable latency on both tasks. The 120 MHz dual-core performance and 512 KB Flash accommodate cipher suites plus protocol firmware concurrently, and the 128 KB SRAM buffers burst traffic. The industrial-grade LQFP-100 package with green RoHS-compliant finish meets utility procurement requirements. Its SAM4-family heritage means shared development tools and drivers with other Microchip ARM MCUs, reducing gateway software maintenance across mixed-fleet deployments.
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Smart Lighting and Load Control Modules
Streetlight and building load-control modules use the ATSAM4CMS8CC-AUR where metering-grade current measurement and switching control must coexist in one compact controller. The metrology core measures lamp and load current at class 0.2 accuracy over the 3000:1 range - sufficient to detect failed, dimmed, or standby loads - while the application core runs scheduling, astronomical clocks, and wireless-module AT-command handling. The crypto engine secures over-the-air command authentication to prevent unauthorized load switching. With -40C to +85C industrial rating and a 14x14 mm LQFP-100 footprint, it fits sealed outdoor enclosures. The 512 KB Flash retains configuration, firmware, and energy logs, supporting predictive-maintenance reporting to municipal asset-management systems.
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EV Charging Station Metering Subsystems
Level-2 EV charging stations require billing-accurate energy measurement plus secure session management - a combination the ATSAM4CMS8CC-AUR addresses in one SoC. The dedicated metrology core maintains class 0.2 accuracy across the 3000:1 dynamic range, capturing both the 2 A minimum charging currents and 32-40 A peaks without range switching, while the second core runs OCPP-style communication and the crypto engine signs metering receipts and authenticates RFID sessions. The 512 KB Flash supports protocol firmware with OTA field updates, and 128 KB SRAM buffers transaction logs. The industrial LQFP-100 package operates from -40C to +85C, matching outdoor charge-point enclosures, and its SAM4-family toolchain shortens firmware reuse from existing metering product lines.
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추천 제품 요약
엔지니어링 참조 데이터: ATSAM4CMS8CC-AUR — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | ATSAM4CMS8CA-AUR | ATSAM4CMS4CC-AUR | ATSAM4CMS4CA-AUR | ATSAM4CMS8CC-CUR |
|---|---|---|---|---|---|
| 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 |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | Dual-core ARM Cortex-M4, 120 MHz | Dual-core ARM Cortex-M4, 120 MHz | Dual-core ARM Cortex-M4, 120 MHz | Dual-core ARM Cortex-M4, 120 MHz | Dual-core ARM Cortex-M4, 120 MHz |
| Crypto Engine | Yes (hardware) | Yes (hardware) | Yes (hardware) | Yes (hardware) | Yes (hardware) |
| Metrology Capability | Class 0.2, 3000:1 dynamic range | Class 0.2, 3000:1 dynamic range | Class 0.2, 3000:1 dynamic range | Class 0.2, 3000:1 dynamic range | Class 0.2, 3000:1 dynamic range |
주요 차별점
- Dual-core architecture isolates metrology timing (vs ATSAM4S16CA-AU)
- Hardware crypto engine integrated (vs ATSAM4CMS4CC-AUR)
- Metrology-grade accuracy in-package (vs Generic Cortex-M4 MCUs)
설계 노트
The 100-pin LQFP (14x14 mm) has a 0.5 mm lead pitch - use a solder-mask-defined footprint per IPC-7351 conventions and verify the land pattern against the Microchip package drawing before fabrication. Place a 0.1 uF ceramic decoupling capacitor at each pair of VDD/VSS pins, as close to the pins as possible, plus one bulk 10 uF capacitor near the supply entry. Keep the metrology analog front-end traces (current transformer/voltage divider inputs) physically separated from the 120 MHz digital switching domain and route them over a continuous ground plane to protect the class 0.2 accuracy budget.
Dual-core resource arbitration is the most common source of firmware bugs on SAM4CM devices. Use the hardware semaphores and shared-SRAM partitioning scheme described in the Microchip SAM4CM family reference manual rather than ad-hoc polling, and assign the metrology core its own interrupt vector region. Also confirm the ordering-code suffix on purchase orders: the ATSAM4CMS8CC-AUR (-AUR suffix) is the industrial, tape-and-reel variant; ordering a commercial-grade or tray variant by mistake can delay production when industrial temperature screening is required.
Estimated: at 120 MHz with both Cortex-M4 cores active, the SAM4CM draws in the range typical of its class (tens of mA); calculate your rail budget from the datasheet supply-current tables for your actual clock configuration. Size the 3.3 V regulator with headroom for core and I/O current plus the analog front end, and verify the power-up ramp rate against the datasheet requirement - slow or monotonic-less ramps can prevent proper POR release. Enable the brown-out detector and configure the clock-failure fallback (RC oscillator) to keep metering state intact during supply disturbances.
Keep crystal/oscillator traces short (under 15 mm), guard them with ground vias, and route them away from switching loads and the crypto bus. For the analog metrology inputs, use Kelvin connections at the shunt or transformer terminals and add RC anti-alias filtering sized for your sampling rate; the class 0.2 specification over a 3000:1 dynamic range leaves little margin for ground-loop or crosstalk-induced errors at the low-current end of the range.
규정 준수 정보
Mouser listing explicitly marks the part as Green package (Microchip green/lead-free/halogen-free category). REACH and conflict-minerals declarations not stated in the provided data - obtain certificates from Microchip compliance portal.