ATSAM4CMP8CC-AUR - Dual-Core 120MHz Metering MCU | Microchip
MPN： ATSAM4CMP8CC-AUR ✓ 啟用中ATSAM4CMP8CC-AUR 概覽
A metrology microcontroller is a specialized class of MCU within the power-management and smart-grid semiconductor hierarchy that integrates precision analog front-ends and metrology computation engines alongside a general-purpose processing core. Where a standard Cortex-M MCU only runs application firmware, a metering SoC such as the SAM4CM also digitizes current and voltage channels and computes active, reactive, and apparent energy to utility-grade accuracy, removing the need for a separate dedicated metering IC.
Key features of the ATSAM4CMP8CC include dual-core operation, in which one Cortex-M4 core executes the metering algorithms while the second core handles communications and application tasks, isolating metrology integrity from protocol stacks. The device achieves poly-phase, 7-channel metrology with class 0.2 accuracy across a 3000:1 dynamic range, and integrates hardware cryptographic acceleration for smart-grid security.
The SAM4CM architecture is a seamless extension of the Atmel (now Microchip) SAM4 and SAM4C families, allowing code reuse across existing smart-meter platforms. Peripherals shared with the SAM4C line, including USART, SPI, TWI, and PWM controllers, simplify board designs that combine metering with PLC, RF, or cellular communication front-ends.
Typical applications include residential and poly-phase electricity meters, industrial sub-meters, smart energy gateways, and grid-security communication concentrators, where the on-chip metrology engine and crypto hardware directly address accuracy certification and data-integrity requirements.
When designing with the SAM4CMP8, budget the analog front-end calibration effort early: class 0.2 accuracy over a 3000:1 dynamic range depends on external shunt or CT selection and factory calibration procedures, not only on the SoC itself.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design guidance that are not consolidated in the manufacturer datasheet, adding information gain for sourcing and engineering evaluation.
直接替換替代品，適用於 ATSAM4CMP8CC-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： ATSAM4CMP8CC-AUR （相同外形與佔位） — 差異在於 Core Processor, Metrology Accuracy, Packaging, Series, Flash Memory.
ATSAM4CMP8CB-AUR
✅ 直接替換聯絡詢價
查看資料表 →ATSAM4CMP8CA-AUR
✅ 直接替換聯絡詢價
查看資料表 →ATSAM4C8C-CUR
✅ 直接替換📋 參考替代品（不在目錄中）
ATSAM4C16C-CUR
✅ 直接替換📋 參考替代品（不在目錄中）
ATSAM4CMP8CC-AU
✅ 直接替換聯絡詢價
查看資料表 →ATSAM4CMP8CC-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 |
| Flash Memory | 512 KB (512K x 8) |
| Series | SAM4CM |
| 封裝 | 100-LQFP (14x14 mm) |
| 安裝類型 | Surface Mount |
| Application Focus | Poly-phase metering, 7 channels, high accuracy |
| Metrology Accuracy | Class 0.2, 3000:1 dynamic range (per manufacturer) |
| Number of ADCs | 1 |
| Security Features | Hardware crypto acceleration |
| 工作溫度 | -40C to +85C (industrial) |
| Packaging | Tape & Reel (AUR suffix), green LQFP |
ATSAM4CMP8CC-AUR 100-lqfp (14x14 mm) 腳位配置指南
ATSAM4CMP8CC-AUR（100-lqfp (14x14 mm) 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： ATSAM4CMP8CC-AUR.
請參閱 資料表 以查看完整腳位配置。
典型應用
ATSAM4CMP8CC-AUR 適用於 6 應用s: Residential Smart Electricity Meters, Poly-Phase Industrial and Commercial Sub-Meters, Smart Grid Security and Communication Concentrators, Renewable Energy Generation Monitoring, Battery Management and Energy Storage Meters, Streetlight and IoT Energy Telemetry Nodes.
Residential Smart Electricity Meters
The ATSAM4CMP8CC-AUR was architected specifically for residential metering: its integrated 7-channel poly-phase metrology front-end achieves class 0.2 accuracy over a 3000:1 dynamic range, which covers the low-current standby loads that residential tariffs must bill correctly. One Cortex-M4 core executes metrology and billing firmware while the second core runs the communication stack, so protocol activity never perturbs energy computation. In a typical single- or three-phase residential meter, current and voltage channels feed the on-chip ADCs through shunts or CTs, and the SoC outputs energy pulses and tamper events directly. Hardware crypto secures firmware and billing data against smart-grid tampering requirements.
推薦
Poly-Phase Industrial and Commercial Sub-Meters
Three-phase commercial sub-metering demands simultaneous sampling of multiple current channels, and the SAM4CMP8's 7-channel front-end covers the neutral, phase, and voltage channels that poly-phase tariff metering requires. The class 0.2 rating over a 3000:1 dynamic range allows one hardware platform to meter both light-load and full-load conditions without channel gain switching. The dual-core split lets the second Cortex-M4 core handle Modbus, DLMS/COSEM, or Ethernet communication while the first core maintains metrology integrity, and the 120 MHz clock budget leaves headroom for harmonic analysis firmware. The 100-pin LQFP (14x14 mm) keeps PCB area compatible with compact DIN-rail sub-meter housings.
推薦
Smart Grid Security and Communication Concentrators
Microchip positions the SAM4CM family as a solution for smart grid security and communications, and the ATSAM4CMP8CC-AUR's hardware crypto acceleration directly serves data concentrator and head-end node designs that aggregate meter data over PLC or RF links. The dual-core Cortex-M4 architecture at 120 MHz concurrently runs the security stack (TLS, key management, authenticated firmware updates) on one core and the application protocol on the other. Shared SAM4C-family peripherals (multiple USARTs, SPI, TWI) connect to PLC modems and RF modules without glue logic. For concentrator designs without metrology needs, the pin-compatible SAM4C8C offers a lower-complexity drop-in from the same firmware base.
推薦
Renewable Energy Generation Monitoring
Solar string inverters and small wind controllers need revenue-grade energy measurement on both generation and export paths, and the ATSAM4CMP8CC-AUR's class 0.2 metrology over a 3000:1 dynamic range handles the wide irradiance-driven current swings of photovoltaic systems without range switching. The 7-channel front-end measures multiple PV strings plus grid voltage channels simultaneously, and the dual-core split lets one Cortex-M4 run MPPT and grid-monitoring algorithms while the other manages inverter supervision and cloud telemetry. The industrial -40C to +85C operating range matches outdoor combiner-box and inverter-adjacent environments, and the LQFP-100 package simplifies certification-friendly single-board metering and control integration.
推薦
Battery Management and Energy Storage Meters
Battery energy storage systems require bidirectional energy metering that is accurate at both high charge currents and very low trickle currents, a profile matched by the SAM4CMP8's 3000:1 dynamic range and class 0.2 accuracy. The 7-channel front-end can monitor pack current, grid-side current, and multiple voltage sense channels concurrently, giving coulomb-counting and revenue-metering data from one silicon source. The dual-core architecture isolates safety-critical monitoring firmware on one Cortex-M4 core from the second core's inverter communication and cloud protocol tasks, supporting functional-separation arguments during certification. Hardware crypto protects billing-relevant charge/discharge records against manipulation.
推薦
Streetlight and IoT Energy Telemetry Nodes
Smart city streetlight controllers and IoT energy telemetry nodes measure consumption per luminaire or feeder for pay-per-use billing, and the ATSAM4CMP8CC-AUR provides metering-grade accuracy with a single SoC instead of a discrete metering IC plus MCU. Its 3000:1 dynamic range captures the tiny currents of LED drivers in dimmed states as reliably as full-power operation, and the second Cortex-M4 core runs NB-IoT, LoRa, or PLC communication concurrently with metrology. The -40C to +85C industrial range survives unconditioned pole-mounted enclosures, and SAM4C-family firmware reuse shortens development for teams already shipping Microchip-based metering products.
推薦
推薦產品摘要
工程參考資料，適用於 ATSAM4CMP8CC-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 | ATSAM4CMP8CB-AUR | ATSAM4CMP8CA-AUR | ATSAM4C8C-CUR | ATSAM4C16C-CUR |
|---|---|---|---|---|---|
| Package | 100-LQFP (14x14 mm) | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same | 100-LQFP - same footprint family | 100-LQFP - same footprint family |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | Dual-core ARM Cortex-M4/M4F, 120 MHz | Dual-core Cortex-M4/M4F, 120 MHz | Dual-core Cortex-M4/M4F, 120 MHz | Dual-core Cortex-M4, 120 MHz | Dual-core Cortex-M4, 120 MHz |
| Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB | 1 MB |
| Integrated Metrology Front-End | Yes - 7-channel poly-phase, class 0.2, 3000:1 | Yes - same metrology engine | Yes - same metrology engine | No - requires external metering IC | No - requires external metering IC |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Packaging | Tape & Reel (AUR) | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel |
主要差異化特點
- Integrated poly-phase metrology engine (對比ATSAM4C8C-CUR)
- Larger memory option in same footprint (對比ATSAM4C16C-CUR)
- Family variant flexibility without redesign (對比ATSAM4CMP8CB-AUR)
設計說明
The 100-pin LQFP (14x14 mm) uses 0.5 mm pin pitch; specify the land pattern per Microchip's SAM4CM package outline drawing and verify stencil design for fine-pitch paste release. Place 100 nF decoupling capacitors at each VDD/VDDIO pin pair within 2 mm of the pin, plus bulk 10 uF per supply domain. Route the metrology analog inputs as differential pairs with guard traces from the shunt/CT connection points, and keep the analog front-end ground separate from the switching supply ground, joining at a single star point under the device.
Do not assume variant interchange without checking the SAM4CM ordering-code table: the CA, CB, and CC suffixes denote different device variant coding within the same family, as reflected in FindIC comparisons. Achieving the advertised class 0.2 accuracy over a 3000:1 dynamic range depends heavily on external sensor selection (shunt vs CT), anti-alias filtering of the metrology ADC inputs, and factory calibration procedures - the SoC alone does not guarantee accuracy. Validate firmware on the exact variant ordered, since SAM4C-family code reuse does not extend to the metrology register map of the SAM4CM.
Dual-core operation at 120 MHz drives supply current that scales with both cores' clock activity; budget the VDDCORE regulator for worst-case simultaneous core loading rather than single-core typical figures. Estimated: with core and I/O supplies drawn from an upstream buck converter, add at least 30% regulator margin above measured worst-case current from Microchip's SAM4CM power-characterization data before finalizing the DC-DC selection. Sequence VDDCORE before VDDIO per the SAM4CM power-supply requirements, and verify brown-out behavior on the analog front-end supply, since uncontrolled analog supply collapse can corrupt calibration RAM.
合規資訊
Distributor listings (Mouser) describe the part as 'LQFP, Green, IND' indicating green/lead-free packaging and industrial temperature grade. REACH and conflict-minerals status not stated in provided data.