ATSAM4CMS16CB-AU - Dual-Core Cortex-M4 120MHz MCU | Microchip
MPN: ATSAM4CMS16CB-AU ✓ فعالATSAM4CMS16CB-AU جائزہ
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.
کے لیے ڈراپ اِن متبادل ATSAM4CMS16CB-AU — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں ATSAM4CMS16CB-AU (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Core Processor, Core Size, Series, Application Target, Package Shape.
ATSAM4CMS16CA-AU
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہ📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
ATSAM4CMS16CB-AUR
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
ATSAM4C16CB-AU
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ATSAM4C16CA-AU
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ATSAM4S16CB-AU
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
ATSAM4CMS16CB-AU زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Processor | ARM Cortex-M4/M4F, dual-core |
| Core Size | 32-bit |
| زیادہ سے زیادہ کلاک فریکوئنسی | 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 |
| پیکیج | 100-LQFP (14x14 mm) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| آپریٹنگ درجہ حرارت | -40C to +85C (industrial) |
| پنز کی تعداد | 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 اسٹیٹس | Green (RoHS compliant per distributor listing) |
ATSAM4CMS16CB-AU square (lfqfp) پن کنفیگریشن گائیڈ
ATSAM4CMS16CB-AU (square (lfqfp) پیکیج) کے لیے پن کنفیگریشن۔ اس ڈیجیٹل IC میں GPIO، کمیونیکیشن انٹرفیس (UART، SPI، I2C) اور پاور پنز شامل ہیں۔ متبادل پن فنکشنز اور کنفیگریشن آپشنز کے لیے مینوفیکچرر کے ڈیٹا شیٹ سے رجوع کریں۔ ایمبیڈڈ سسٹم ڈیزائن اور PCB لے آؤٹ کے لیے ضروری۔
کے لیے تفصیلی پن آؤٹ ڈیٹا دستیاب نہیں ATSAM4CMS16CB-AU.
رجوع کریں ڈیٹا شیٹ مکمل پن کنفیگریشن کے لیے۔
عام استعمالات
ATSAM4CMS16CB-AU کے لیے موزوں ہے 6 ایپلیکیشنs: 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.
تجویز کردہ
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.
تجویز کردہ
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.
تجویز کردہ
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.
تجویز کردہ
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.
تجویز کردہ
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.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا ATSAM4CMS16CB-AU — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | 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 |
اہم امتیازی خصوصیات
- Dual-core Cortex-M4/M4F with independent firmware partitions (بمقابلہATSAM4S16CB-AU)
- Class 0.2 metrology accuracy with 3000:1 dynamic range (بمقابلہATSAM4S16CB-AU)
- Higher SRAM configuration than same-class single-core parts (بمقابلہATSAM4C16CB-AU)
ڈیزائن نوٹس
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.
تعمیل کی معلومات
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.