ATSAM4CMP8CB-AUR - Dual-Core 120MHz MCU, 512KB Flash | Microchip
料号： ATSAM4CMP8CB-AUR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $9.85 | $9.85 |
| 10 | $8.95 | $89.50 |
| 100 | $7.9 | $790.00 |
| 500 | $7.15 | $3,575.00 |
| 1,000 | $6.55 | $6,550.00 |
ATSAM4CMP8CB-AUR 概述
A microcontroller (MCU) is a single-chip embedded computer that integrates a processor core, memory, and programmable peripherals on one die. The SAM4CM extends this concept into a metrology system-on-chip (SoC): it belongs to the power-management hierarchy of smart-meter silicon, where an MCU core, hardware crypto acceleration, and precision metrology engine combine to replace several discrete components. The ATSAM4CMP8CB-AUR is a seamless extension of the Atmel/Microchip SAM4 and SAM4C families, preserving software and peripheral compatibility while adding metrology features.
Key features include class 0.2 metrology accuracy over a 3000:1 dynamic range, dual Cortex-M4/M4F cores for concurrent computation and communication, a 512 KB (512K x 8) Flash array, 128 KB RAM, and hardware cryptography targeted at smart-grid security. Connectivity peripherals include EBI/EMI, I2C, IrDA, SPI, and UART/USART, allowing the chip to drive both analog front-end work and communication stacks simultaneously.
Technically, the dual-core architecture partitions tasks: one core handles 3-phase metrology computation (RMS, power, energy accumulation), while the other runs protocol and UI stacks such as DLMS/COSEM. The industrial temperature grade and green/RoHS LQFP packaging support direct deployment in outdoor meter enclosures. Mouser describes the device as 'LQFP, Green, IND TEMP, CRYPTO, 3ph SOC, MRLC, 1024K', reflecting the SAM4CM metrology SoC positioning.
Typical applications include residential and poly-phase (3-phase) electricity meters, industrial energy monitoring, smart-grid security gateways, and power-quality analysis instruments requiring class 0.2 accuracy.
Design consideration: budget the metrology analog front-end routing to keep sense lines away from switching supplies; the class 0.2 accuracy claim depends on clean supply and reference design following the Microchip reference meter design.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： ATSAM4CMP8CB-AUR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ATSAM4CMP8CB-AUR （相同外形与封装尺寸） ——差异在于 Core Processor, Packaging, Series, Metrology Accuracy, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
ATSAM4CMP8CB-AU
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →ATSAM4CMP8CC-AUR
✅ 直接替换✓ 有现货
$2.95 / 个
查看数据手册 →ATSAM4CMS8CA-AUR
✅ 直接替换✓ 有现货
$5.92 / 个
查看数据手册 →ATSAM4CMP8CB-CTR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ATSAM4CMP8CU-AUR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ATSAM4CMP8CB-AUR 最大额定值与电气特性
| Core Processor | ARM Cortex-M4/M4F dual-core, 32-bit |
| Core Frequency | 120 MHz |
| Flash Program Memory | 512 KB (512K x 8) |
| RAM | 128 KB |
| Series | SAM4CM |
| Metrology Accuracy | Class 0.2 over 3000:1 dynamic range |
| Metrology Type | 3-phase metering SoC |
| Connectivity Peripherals | EBI/EMI, I2C, IrDA, SPI, UART/USART |
| Security Features | Hardware cryptography (CRYPTO) |
| 封装 | 100-LQFP (14x14 mm) |
| 安装类型 | Surface Mount |
| Terminal Form | Gull Wing |
| Number of Terminals | 100 |
| Package Code | LFQFP, Square |
| Temperature Grade | Industrial |
| Halogen/RoHS Status | Green (RoHS compliant per Mouser listing) |
| Metrology Channels | 7 channels (per FindIC listing) |
ATSAM4CMP8CB-AUR lfqfp, square 引脚配置指南
ATSAM4CMP8CB-AUR（lfqfp, square 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： ATSAM4CMP8CB-AUR.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ATSAM4CMP8CB-AUR 适用于 6 应用s: Poly-Phase (3-Phase) Smart Electricity Meters, Industrial Energy Monitoring Systems, Smart Grid Security and Communications Gateways, Residential Smart Meters, Power Quality Analysis Instruments, Solar Inverter and DER Metering.
Poly-Phase (3-Phase) Smart Electricity Meters
The ATSAM4CMP8CB-AUR is purpose-built for 3-phase electricity metering, achieving class 0.2 metrology accuracy across a 3000:1 dynamic range according to Microchip's product data. Its dual Cortex-M4/M4F cores allow hard partitioning: one core executes the metrology accumulation algorithms (RMS voltage/current, active/reactive power, energy registers) while the second core runs the communication and tariff stack with floating-point headroom from the M4F FPU. Because the metrology engine is integrated on-chip, the design avoids an external metrology AFE, reducing BOM count and simplifying certification. Firmware upgrades and DLMS/COSEM compliance fit comfortably in the 512 KB Flash. The industrial temperature grade supports outdoor meter enclosures without derating.
推荐
Industrial Energy Monitoring Systems
Industrial power analyzers and sub-metering panels benefit from the ATSAM4CMP8CB-AUR's 3000:1 dynamic range, which captures both light-load standby draw and full motor inrush on a single gain range. The 120 MHz dual-core throughput sustains per-cycle FFT and harmonic analysis while the second core streams results over UART/USART or SPI to SCADA gateways via I2C/SPI-connected modems. Hardware crypto secures measured-data reporting against tampering. The EBI/EMI interface can attach external memory for waveform logging. Class 0.2 accuracy means installations meet commercial billing requirements, not just monitoring, allowing one hardware platform to serve both internal audit and revenue-grade metering points.
推荐
Smart Grid Security and Communications Gateways
Microchip positions the SAM4CM family as a solution for smart-grid security and communications applications, and the ATSAM4CMP8CB-AUR carries this role with on-chip hardware crypto accelerators. The dedicated cryptography offloads AES-class operations for secure firmware-over-the-air updates and authenticated meter-to-head-end sessions, freeing the 120 MHz dual cores for protocol processing. USART/UART channels support RS-485, PLC, and RF modem attachments, while the second core isolates security-sensitive code in a separate execution domain. The 128 KB RAM buffers multiple concurrent sessions. Designers should follow Microchip's smart-meter reference designs for key-storage and secure-boot implementation patterns.
推荐
Residential Smart Meters
For single-phase and residential meters, the ATSAM4CMP8CB-AUR provides a single-chip solution combining metrology-grade measurement, tamper detection, and communication. Class 0.2 accuracy over a 3000:1 dynamic range ensures billing accuracy even at trickle loads such as standby electronics. The 512 KB Flash accommodates prepaid-metering logic, anti-tamper event logging, and multiple protocol stacks simultaneously. Its industrial temperature grade tolerates unconditioned outdoor enclosures common in distribution networks. Because the metrology engine is fully on-chip, residential meter designs achieve a compact, low-component-count layout with fewer calibration points, reducing manufacturing test time on high-volume automated production lines.
推荐
Power Quality Analysis Instruments
The 120 MHz dual-core architecture and floating-point M4F capability let the ATSAM4CMP8CB-AUR compute THD, sags/swells, and harmonic spectra in real time on the metrology core, while the second core drives a display or logs waveforms via EBI/EMI-attached memory. The 3000:1 dynamic range avoids range-switching artifacts during transients, a common weakness of multiplexed input instruments. Seven metrology input channels (per FindIC family data) allow monitoring three phases plus neutral simultaneously. Hardware crypto protects logged forensic data in compliance-critical installations. For bench instruments, its LQFP package simplifies prototyping on standard 100-pin QFP sockets and emulators.
推荐
Solar Inverter and DER Metering
Distributed energy resources such as rooftop solar inverters require bidirectional, revenue-grade energy measurement, and the ATSAM4CMP8CB-AUR's metrology engine measures energy in both directions at class 0.2 accuracy. The 3000:1 dynamic range tracks output from early-morning trickle generation to peak array output without gain switching. Its dual cores split duties between inverter control communication (grid-code monitoring via fast ADC sampling) and secure metering data reporting to utility aggregators. Hardware crypto supports utility-required authentication for export-limiting commands. The industrial temperature rating suits rooftop combiner boxes where ambient temperatures swing widely across seasons.
推荐
推荐产品汇总
工程参考数据： ATSAM4CMP8CB-AUR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ATSAM4CMP8CB-AU | ATSAM4CMP8CC-AUR | ATSAM4CMS8CA-AUR |
|---|---|---|---|---|
| Package | 100-LQFP (14x14 mm) | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same family |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | ARM Cortex-M4/M4F dual-core 120 MHz | ARM Cortex-M4/M4F dual-core 120 MHz | ARM Cortex-M4/M4F dual-core 120 MHz | ARM Cortex-M4/M4F dual-core |
| Metrology Accuracy | Class 0.2, 3000:1 dynamic range | Class 0.2, 3000:1 | Class 0.2 (family spec) | Class 0.2 (family spec) |
| Hardware Crypto | Yes (CRYPTO) | Yes | Yes | Yes |
| Temperature Grade | Industrial | Industrial | Industrial | Industrial |
| Packaging | Tape & Reel | Tray | Tape & Reel | Tape & Reel |
关键差异点
- Integrated class 0.2 metrology engine （对比 ATSAM4CMS8CA-AUR)
- Tape & Reel packaging for high-volume SMT （对比 ATSAM4CMP8CB-AU)
- No cross-brand drop-in exists - design lock-in protection （对比 Generic Cortex-M4 MCUs (e.g., STM32-class))
设计说明
Estimated: to preserve class 0.2 metrology accuracy, route voltage and current sense traces differentially and away from switching supplies and communication lines; keep the analog ground region under the metrology front-end separate from digital ground returns and join at a single point. The 100-pin LQFP (14x14 mm) places mixed-signal pins adjacent, so a 4-layer stack (SIG-GND-PWR-SIG) with a solid ground plane is strongly recommended. Follow the Microchip SAM4CM metering reference design for decoupling placement before committing the footprint.
Do not confuse ordering codes when sourcing: ATSAM4CMP8CB-AUR is the Tape & Reel industrial-grade part, while ATSAM4CMP8CB-AU is the tray-packed equivalent and ATSAM4CMP8CB-CTR is a commercial-temperature variant - mixing them into an outdoor meter build can cause field temperature failures. Also verify that the -AUR suffix is what your CM and purchasing system reference; secondary-market sites (Veswin, Avaq, LoveChip) resell this MPN and require authenticity screening for revenue-metering programs.
Estimated: budget a clean 3.3 V analog supply rail for the metrology front-end with an RC or LDO filter separate from the digital core rail; ripple on the metrology supply directly translates into energy-measurement error that calibration cannot fully remove at light load (the bottom of the 3000:1 dynamic range is most sensitive). Use 100 nF ceramic capacitors at each supply pin of the LQFP plus bulk 10 uF per rail, and sequence power-up per the SAM4CM datasheet to avoid latch-up on the EBI/EMI bus.
合规信息
Mouser lists the part as 'LQFP, Green, IND TEMP' - Green denotes Microchip RoHS/halogen-free packaging. Formal REACH and conflict-minerals declarations should be obtained from Microchip's compliance portal.