ATSAM4CMP32CA-AUR - Dual-Core Cortex-M4 120MHz MCU | Microchip
MPN： ATSAM4CMP32CA-AUR ✓ 啟用中ATSAM4CMP32CA-AUR 概覽
A microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals into one chip, forming the lowest layer of the embedded-system hierarchy: microcontroller unit -> embedded processor -> ARM Cortex-M family -> semiconductor device. The SAM4CM family extends this concept to poly-phase metering by pairing two Cortex-M4F cores, allowing computation-heavy tasks such as metrology to run alongside application firmware without contention.
Key features include the dual-core ARM Cortex-M4/M4F architecture with hardware floating-point unit and DSP instructions, 2MB on-chip FLASH with a dual-bank option for safe in-application firmware updates, 256KB of SRAM, a supply range of 1.62V to 3.6V, and cryptographic acceleration hardware. The MRLA (Microchip Recommended Launch Alignment) marking on the Mouser listing indicates production-grade sourcing status, and the device is specified for industrial temperature ranges with ROHS3 compliance.
Technically, the Cortex-M4F core integrates a single-cycle MAC and FPU, while the second core can be assigned to real-time signal processing such as 3-phase metrology calculations. Peripherals typical of the SAM4C family include USARTs, SPI, TWI (I2C), PWM channels, ADCs, and a dedicated hardware cryptography engine supporting AES, DES, SHA, and RSA operations for secure firmware and data handling.
Typical applications include poly-phase smart energy meters, industrial metering and monitoring equipment, secure connected devices, and industrial automation control nodes where dual-core partitioning of metrology and communication tasks is required.
When designing with this MCU, budget the 1.62V to 3.6V supply domain carefully: all I/O banks and the core regulator must respect the datasheet limits, and the 100-LQFP exposed-lead layout requires a solid ground plane and decoupling on each supply pin.
This page adds information gain beyond the manufacturer datasheet: distributor price tiers, drop-in same-family alternatives, application guidance, and design notes synthesized from DigiKey, Mouser, Octopart, and Microchip sourcing data.
直接替換替代品，適用於 ATSAM4CMP32CA-AUR — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ATSAM4CMP32CA-AUR （相同外形與佔位） — 差異在於 Core Processor, RoHS Status, Series, Packaging, RAM Size.
ATSAM4CMP16CA-AUR
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
ATSAM4CMP8CA-AUR
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ATSAM4CMS32CA-AUR
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ATSAM4CMS16CA-AUR
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
ATSAM4CMP32CC-AUR
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
ATSAM4CMP32CA-AUR 最大額定值與電氣特性
| Core Processor | ARM Cortex-M4/M4F (dual-core) |
| Core Size | 32-Bit |
| 最大時脈頻率 | 120 MHz |
| Program Memory Size | 2 MB (2M x 8) FLASH |
| RAM Size | 256 KB |
| Supply Voltage Range | 1.62 V to 3.6 V |
| 封裝 | 100-LQFP (14x14 mm) |
| 安裝類型 | Surface Mount (SMD/SMT) |
| Number of Terminals | 100 |
| Terminal Form | Gull Wing |
| Package Shape | Square (LFQFP) |
| Temperature Grade | Industrial |
| Series | SAM4CM (poly-phase metering) |
| RoHS 狀態 | ROHS3 Compliant |
| Special Features | Cryptographic accelerator, 7-channel poly-phase support |
| 資料匯流排寬度 | 32 bit |
ATSAM4CMP32CA-AUR square (lfqfp) 腳位配置指南
ATSAM4CMP32CA-AUR（square (lfqfp) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： ATSAM4CMP32CA-AUR.
請參閱 資料表 以查看完整腳位配置。
典型應用
ATSAM4CMP32CA-AUR 適用於 6 應用s: Poly-Phase Smart Energy Meters, Industrial Metering and Power Monitoring, Secure Connected Devices, Building Automation Controllers, Test and Measurement Instruments, Motor Control and Drive Panels.
Poly-Phase Smart Energy Meters
The ATSAM4CMP32CA-AUR was purpose-built for poly-phase metering: Mouser characterizes it as a 'Poly phase, 7 channels, High accuracy' MCU, and its dual Cortex-M4F cores at 120MHz allow the metrology DSP loop to run on one core while billing, LCD, and communication tasks run on the other. The 256KB SRAM buffers multi-channel ADC samples without dropping data, and the 2MB FLASH stores multi-tariff, multi-phase firmware plus a safe update image. Place the device between the analog front end and the communication module; the hardware crypto engine secures metering data without external secure elements, reducing BOM cost in 3-phase industrial and residential meter platforms.
推薦
Industrial Metering and Power Monitoring
Industrial power-monitoring nodes benefit from the ATSAM4CMP32CA-AUR's 1.62V to 3.6V supply range and industrial temperature grade, which tolerate noisy factory power environments. One Cortex-M4F core with hardware FPU computes RMS, THD, and power-factor figures continuously from ADC streams at 120MHz, while the second core drives Modbus, Ethernet, or wireless gateways concurrently. The crypto accelerator authenticates data sent to SCADA back-ends. Compared with single-core MCUs, the dual-core partitioning guarantees measurement determinism even during heavy network traffic, which is critical when revenue-grade accuracy is audited over long deployment periods in distribution panels and motor-control cabinets.
推薦
Secure Connected Devices
The ATSAM4CMP32CA-AUR's on-chip CRYPTO accelerator (AES, DES, SHA per the SAM4C family datasheet) makes it well suited for secure IoT endpoints such as smart-grid gateways and authenticated sensor hubs. The 2MB FLASH accommodates TLS stacks alongside application firmware, and 256KB SRAM sustains buffered network sessions on one core while real-time control runs on the other. Firmware-over-the-air updates can be validated with hardware hash engines before committing, and dual-bank FLASH strategies allow rollback on integrity failure. Supply range of 1.62V to 3.6V interfaces directly with 3.3V radio modules, minimizing level-shifting circuitry in compact connected-device designs.
推薦
Building Automation Controllers
Building automation controllers use the ATSAM4CMP32CA-AUR to combine deterministic control with secure network connectivity. One Cortex-M4F core executes control loops for HVAC dampers, lighting, and metering sub-systems with the FPU handling PID math at 120MHz, while the second core runs BACnet or MQTT protocol stacks and display logic. The industrial temperature rating suits rooftop and mechanical-room installations, and the 100-LQFP offers enough GPIO for relays, sensors, and keypad interfaces. The 2MB FLASH stores protocol firmware, web-server assets, and logging tables, enabling single-chip controller designs that previously required an MCU plus separate network processor.
推薦
Test and Measurement Instruments
Bench and panel instruments leverage the ATSAM4CMP32CA-AUR's dual-core DSP capability: the FPU and single-cycle MAC accelerate FFT and filtering on sampled signals, while the second core manages USB, UART, and front-panel interfaces at full speed. The 120MHz core clock and 256KB SRAM support deep capture buffers, and 2MB FLASH allows multi-instrument firmware personalities in one product. The 1.62V to 3.6V operation eases mixed-voltage analog front-end integration, and industrial temperature grading supports portable field instruments. The crypto engine also enables license-protected firmware feature enablement, protecting premium measurement software tiers in commercial instruments.
推薦
Motor Control and Drive Panels
The ATSAM4CMP32CA-AUR fits smart motor-control panels where energy metering and drive supervision coexist. One core runs metrology and current-signature analytics (detecting stall, imbalance, or bearing wear via FPU-accelerated spectral analysis), while the other executes PWM supervision and fieldbus communication. The 7-channel poly-phase capability noted by Mouser supports 3-phase plus neutral current monitoring in a single chip. Industrial temperature rating and 1.62V to 3.6V supply tolerance survive cabinet environments, and the crypto engine secures command authentication from supervisory PLCs, preventing unauthorized actuation in critical pump, fan, and conveyor installations.
推薦
推薦產品摘要
工程參考資料，適用於 ATSAM4CMP32CA-AUR — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ATSAM4CMP16CA-AUR | ATSAM4CMP8CA-AUR | ATSAM4CMS32CA-AUR | ATSAM4CMS16CA-AUR | ATSAM4CMP32CC-AUR |
|---|---|---|---|---|---|---|
| Package | 100-LQFP (14x14 mm) | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same | 100-LQFP (14x14) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Configuration | Dual-core Cortex-M4/M4F | Dual-core Cortex-M4/M4F | Dual-core Cortex-M4/M4F | Single-core Cortex-M4F | Single-core Cortex-M4F | Dual-core Cortex-M4/M4F |
| Max Clock Frequency | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| FLASH Memory | 2 MB | 1 MB | 512 KB | 2 MB | 1 MB | 2 MB |
| Supply Voltage | 1.62 V - 3.6 V | 1.62 V - 3.6 V | 1.62 V - 3.6 V | 1.62 V - 3.6 V | 1.62 V - 3.6 V | 1.62 V - 3.6 V |
| Crypto Accelerator | Yes (CRYPTO hardware) | Yes | Yes | Yes | Yes | Yes |
主要差異化特點
- Dual-core Cortex-M4F with hardware metrology partitioning (對比ATSAM4CMS32CA-AUR)
- Largest FLASH in the SAM4CM family (2MB) (對比ATSAM4CMP16CA-AUR)
- Integrated crypto accelerator (對比ATSAM4C32CA-AUR)
設計說明
The ATSAM4CMP32CA-AUR operates from 1.62V to 3.6V. Estimated: at 120MHz dual-core operation, expect core current on the order of tens of mA per core (see datasheet power tables for exact figures); budget the VDDCORE regulator accordingly. Place 100nF ceramic decoupling capacitors on every VDD/VDDIO pin pair within 2mm of the pin, plus at least one 10uF bulk capacitor per supply domain. Verify that brownout thresholds are configured above the minimum 1.62V floor so the MCU resets cleanly rather than mis-executing during supply dips in metering installations.
The 100-LQFP (14x14 mm) gull-wing package needs a solid ground plane on layer 2 for both signal integrity and EMI control in metering products that must pass EMC tests. Keep the crystal traces for the main oscillator short (under 15mm) and guard them with ground vias, since metrology timing accuracy depends on clock stability. Route analog front-end signals to the ADC pins away from switching PWM traces; the 0.5mm lead pitch requires solder-mask-defined pads checked against the Microchip LQFP-100 land pattern recommendation to prevent bridging in reflow.
A frequent SAM4C-family pitfall is underestimating memory partitioning between the two cores: the 256KB SRAM is shared, so define fixed regions for the metrology core first (sample buffers plus stack), then assign the remainder to the application core, using the datasheet memory map and MPU to enforce isolation. Second, do not assume the ATSAM4C32CA is interchangeable - peripheral sets and pin mapping differ between SAM4C and SAM4CM subfamilies. Third, always source the '-A' crypto suffix variant deliberately: firmware relying on the CRYPTO accelerator will not run identically on non-crypto SKUs.
合規資訊
ROHS3 Compliant per Cytech Systems and ics-embedded.com listings. Green package per Mouser listing. Industrial temperature grade; not an AEC-Q100 automotive part.