ATSAM4CMS4CC-AU - Dual-Core 120MHz MCU 256KB | Microchip
Référence : ATSAM4CMS4CC-AU ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $3.38 | $3,38 |
| 10 | $3.05 | $30,50 |
| 100 | $2.72 | $272,00 |
| 500 | $2.45 | $1 225,00 |
| 1 000 | $2.21 | $2 210,00 |
ATSAM4CMS4CC-AU Présentation
A microcontroller (MCU) is a single-chip computer that integrates a processor core, memory, and peripherals on one die, sitting within the broader hierarchy of semiconductor devices under embedded processors and system-on-chip (SoC) solutions. The SAM4CM subfamily extends Microchip's SAM4C ARM Cortex-M4 family by adding metrology-specific signal processing hardware aimed at energy metering.
Key features of the ATSAM4CMS4CC-AU include its unique dual-core ARM Cortex-M4 architecture, which separates signal processing firmware from application and communications firmware in independent memory partitions, improving security and real-time determinism. It delivers up to class 0.2 metrology accuracy over a dynamic range of 3000:1, integrates a cryptographic accelerator for smart-grid security, and operates over the full industrial temperature range.
Technically, the SAM4CM SoC couples two 120 MHz Cortex-M4 processors with on-chip cache, embedded flash (256 KB on this density grade), SRAM, and a rich peripheral set. The parallel memory bus capability allows program and data memory extension beyond the embedded flash, supporting larger metering application images.
Typical applications include residential and single-phase electricity meters, smart-grid communication concentrators, industrial energy monitoring, and secure data-concentrator nodes. The metrology acceleration and crypto engine make this MCU particularly well-suited to tariff metering with encrypted telemetry.
Design consideration: verify power-supply sequencing and use the manufacturer metrology reference designs to achieve class 0.2 accuracy; PCB layout of analog metering front ends directly affects dynamic range.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
Alternatives de remplacement direct pour ATSAM4CMS4CC-AU — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec ATSAM4CMS4CC-AU (même facteur de forme et même empreinte) — différant par Operating Temperature, RoHS Status, Maximum Clock Frequency, Package, Core.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATSAM4CMS8CC-AU
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$3.35 / unité
Voir la fiche technique →ATSAM4CMS4CA-AU
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
ATSAM4SD32BA-AUR
✅ Remplacement direct✓ En stock
$6.78 / unité
Voir la fiche technique →ATSAM3N4BA-MU
✅ Remplacement direct✓ En stock
$3.48 / unité
Voir la fiche technique →ATSAM4CMS4CC-AU Valeurs maximales et caractéristiques électriques
| Core | 32-bit Dual-Core ARM Cortex-M4 |
| Fréquence d'horloge maximale | 120 MHz |
| Flash Memory | 256 KB |
| Boîtier | 100-LQFP (14x14 mm) |
| Type de montage | Surface Mount |
| Number of I/O Terminals | 100 |
| Family | SAM4CM (SAM4C family extension) |
| Metrology Accuracy | Class 0.2 over 3000:1 dynamic range |
| Metering Type | Single-phase metering SoC |
| Security | Integrated crypto accelerator |
| On-chip Cache | Yes |
| Memory Extension | Parallel memory interface for program/data extension |
| Temperature Range | Industrial temperature range |
| Target Application | Residential and single-phase energy metering |
| Statut RoHS | Green package (per Mouser listing) |
| SRAM (family max) | Up to 304 KB (SAM4CM family, density-dependent) |
Guide de configuration des broches du ATSAM4CMS4CC-AU 100-lqfp (14x14 mm)
Configuration des broches du ATSAM4CMS4CC-AU (boîtier 100-lqfp (14x14 mm)). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour ATSAM4CMS4CC-AU.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
ATSAM4CMS4CC-AU convient pour 6 applications: Single-Phase Residential Electricity Meters, Smart Grid Data Concentrators, Industrial Energy Monitoring and Submetering, Secure IoT Edge Nodes for Utility Infrastructure, Building Energy Management Systems, Solar Inverter and Distributed Generation Metering.
Single-Phase Residential Electricity Meters
The ATSAM4CMS4CC-AU is purpose-designed by Microchip for residential and single-phase metering, achieving up to class 0.2 metrology accuracy over a dynamic range of 3000:1. Its integrated metrology acceleration hardware samples voltage and current channels and computes active, reactive, and apparent energy without burdening the main CPU, so billing-grade accuracy is maintained even while application firmware runs. One 120 MHz Cortex-M4 core can be dedicated to metrology signal processing while the second core handles protocol stacks and display logic in isolated memory partitions. This dual-core partitioning reduces certification risk because billing code is protected from communication-layer faults, and the 100-pin LQFP provides enough GPIO for LCD drivers, tamper detection, and relay control in a single chip.
Recommandé
Smart Grid Data Concentrators
In smart-grid infrastructure, data concentrators aggregate readings from many neighborhood meters and forward them over secure backhaul. The ATSAM4CMS4CC-AU fits this role because its dual ARM Cortex-M4 cores at 120 MHz can run a communication stack on one core while the other manages aggregation and buffering, supported by on-chip cache and a parallel memory interface for extending program and data memory beyond embedded flash. The integrated cryptographic accelerator provides authenticated, encrypted links required by modern smart-grid security standards, offloading symmetric crypto from software. Its industrial temperature rating keeps the part reliable in street-cabinet and pole-mounted enclosures, while the 3000:1 dynamic range metrology front end also lets the concentrator perform local load profiling.
Recommandé
Industrial Energy Monitoring and Submetering
Factory energy audits and submetering panels need billing-adjacent accuracy in compact hardware. The ATSAM4CMS4CC-AU delivers class 0.2 accuracy across a 3000:1 dynamic range, meaning it resolves both the small standby currents of idle equipment and the large inrush currents of motor starts on one measurement chain. Operating over the industrial temperature range, it survives panel environments near drives and switchgear. The crypto accelerator protects collected consumption data transmitted to energy-management systems, and the dual-core architecture isolates real-time metering interrupts from Modbus or Ethernet application code, keeping measurement jitter low. With up to 304 KB of SRAM available across the SAM4CM family densities, load-profile logging can be buffered on-chip between communication windows.
Recommandé
Secure IoT Edge Nodes for Utility Infrastructure
Utility IoT endpoints such as streetlight controllers, transformer monitors, and load-control switches require a secure processor with communications headroom. The ATSAM4CMS4CC-AU provides 120 MHz dual-core Cortex-M4 performance, an integrated crypto engine for device identity and secure firmware updates, and 256 KB flash sufficient for stripped RTOS-based stacks. The parallel memory interface allows external program/data memory when applications grow, avoiding an early MCU redesign. Because the SoC is a seamless extension of the SAM4C family, existing SAM4C firmware and the Microchip software ecosystem port directly, shortening development. The 100-pin LQFP offers generous GPIO for relays, sensors, and RF module interfaces on a single surface-mount footprint.
Recommandé
Building Energy Management Systems
Commercial building energy management requires many metering points feeding a controller network. The ATSAM4CMS4CC-AU serves both the metering end nodes and local aggregation controllers: its metering SoC capabilities deliver class 0.2 accuracy for tenant billing submeters, while dual Cortex-M4 cores handle BACnet or Modbus communication concurrently with measurement tasks. Crypto acceleration secures tenant consumption data, and the industrial temperature range suits rooftop and plant-room installations. On-chip cache and the parallel memory extension interface let the aggregation firmware cache datasets and expand storage. Using one MCU family across endpoints and controllers reduces the qualification burden and spare-part inventory for building automation OEMs.
Recommandé
Solar Inverter and Distributed Generation Metering
Grid-tied solar installations require revenue-accurate generation and export meters. The ATSAM4CMS4CC-AU's 3000:1 dynamic range captures the very low output of dawn, dusk, and cloudy conditions with the same accuracy as peak sun, meeting class 0.2 requirements across the full operating envelope. One Cortex-M4 core performs metrology DSP while the second runs inverter communication and anti-islanding logic, and the crypto accelerator supports utility-side data authentication for feed-in tariff settlement. The parallel memory interface supports data logging for generation profiling, and the industrial temperature rating covers outdoor combiner-box environments. Microchip positions the SAM4CM as a direct extension of its metering-proven SAM4C platform, easing certification reuse.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATSAM4CMS4CC-AU — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATSAM4CMS8CC-AU | ATSAM4SD32BA-AUR | ATSAM3N4BA-MU |
|---|---|---|---|---|
| Package | 100-LQFP (14x14 mm) | 100-LQFP (14x14 mm) - same | LQFP (same family footprint) | LQFP (same family footprint) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | Dual-core ARM Cortex-M4 | Dual-core ARM Cortex-M4 | Single-core ARM Cortex-M4 | Single-core ARM Cortex-M3 |
| Max Clock Frequency | 120 MHz | 120 MHz | 120 MHz | 96 MHz |
| Flash Memory | 256 KB | 512 KB | 2 MB (up to, per family) | 256 KB |
| Metrology Capability | Class 0.2, 3000:1 dynamic range | Class 0.2, 3000:1 dynamic range | None (general-purpose) | None (general-purpose) |
Principaux différenciateurs
- Dual-core Cortex-M4 metrology partitioning (vs ATSAM4SD32BA-AUR)
- Class 0.2 accuracy with integrated crypto (vs ATSAM3N4BA-MU)
- Seamless flash-density upgrade path (vs ATSAM4CMS8CC-AU)
Notes de conception
To achieve class 0.2 metrology accuracy over a 3000:1 dynamic range, treat the analog metering front-end as a mixed-signal island: use a solid ground plane, star-route the voltage and current channel references back to the ADC reference pin, and keep switching loads (relay coils, LCD backlight) physically away from the sample inputs. Microchip's SAM4CM reference designs for single-phase metering should be used as the layout template; deviations from the reference layout are the most common cause of accuracy shortfalls in first-build meters.
Design the power supply for the full industrial temperature range with adequate margin, and sequence the core and I/O rails per the Microchip SAM4CM power-up requirements. Because the SoC integrates a crypto accelerator and two 120 MHz Cortex-M4 cores, supply current is workload-dependent; size the regulator for peak concurrent operation of both cores plus crypto rather than idle-typical values. Add local 100 nF decoupling at every VDD pin pair plus bulk capacitance near the LQFP supply entry points.
Two frequent mistakes with this family: (1) assuming the AU and CU suffix parts are interchangeable - the suffix encodes the package, so an AU (100-LQFP) cannot be soldered onto a CU land pattern; verify the suffix on purchase orders. (2) Filling the 256 KB flash with combined metrology plus communication firmware; the dual-core architecture expects firmware in independent partitions, so budget memory partition sizes early, or select the ATSAM4CMS8CC-AU (512 KB, same footprint) if the stack will grow.
Informations de conformité
Mouser listing describes the package as 'LQFP, Green, IND TEMP', indicating a green (halogen-reduced) RoHS package; full REACH and conflict-minerals status should be confirmed via Microchip's official compliance documentation.