CXEP2338A

CXEP2338ACXEP2338B计量处理器基于Maxim Integrated的第四代计量体系结构,支持CXEP2338A CXEP2338B系列隔离电流传感产品,可大幅减少组件数量、抗磁干扰和无与伦比的可靠性。CXEP2338A/CXEP2338B将我们的单转换器技术与22位delta sigma ADC、用于核心计量功能的可定制32位计算引擎(CE)以及具有64KB闪存和5KB RAM的用户可编程8051兼容应用处理器(MPU)核心集成在一起外部主机处理器可以直接访问计量功能通过SPI接口,或者通过需要在计量子系统内进行计量数据采集、存储和预处理的应用程序中的嵌入式MPU核心。此外,这些设备还集成了RTC、DIO和UART。一整套ICE和开发工具、编程库和参考设计使仪表能够快速开发和认证,满足世界范围内所有ANSI和IEC电力计量标准CXEP2338A/CXEP2338B在工业温度范围内运行,并具有64针引线(Pb)自由封装。
SoC集成和独特的隔离技术在不牺牲性能的前提下降低了BOM成本
2000:1电流范围内0.1%的典型精度
超过了IEC 62053/ANSI C12.20标准
四象限测光
46-64Hz同一校准线频率范围
相位补偿(±10°)
独立32位计算引擎
64KB闪存,5KB RAM
内置闪存安全
具有闪存编程功能的主机SPI接口
最多四个脉冲输出,脉冲计数
8位MPU(80515),最高可达5 MIPS(可选使用)
全速MPU时钟处于快速模式
多达29个多功能DIO管脚
硬件看门狗定时器(WDT)
用于AMR或其他通信职责的UART
I2C/EEPROM接口
创新的隔离技术(需要配套的CXEP2338A CXEP2338B传感器,也来自Maxim Integrated)消除了电流互感器
具有可选差分模式的四个电流传感器输入
一个电流输入可选择1或8的增益,以支持中性点电流分路
可编程宽度的高速Wh/VARh脉冲输出
数字温度补偿提高系统性能
计量补偿
全功率模式下晶体温度自动补偿的TOU功能精确RTC
停电时电源管理延长电池寿命
浏览器模式(BRN)
睡眠模式(SLP)
两种备用电池模式:
针事件唤醒和计时器唤醒
睡眠模式下为1μA

CXEP2338A CXEP2338B有64KB闪存和5KB RAM的用户可编程8051兼容应用处理器MPU核心集成外部主机处理器直接访问计量功能通过SPI接口计量子系统内进行计量数据采集存储和预处理的应用程序中的嵌入式MPU核心

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1.产品概述       2.产品特点     PWd嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)PWd嘉泰姆

5.产品封装       6.电路原理图  PWd嘉泰姆

7.相关产品PWd嘉泰姆

   产品概述 返回TOPPWd嘉泰姆


The CXEP2338A/CXEP2338B metrology processors are based on Maxim Integrated’s 4th-generation metering architecture supporting the CXEP2338A CXEP2338B series of isolated current sensing products that offer drastic reduction in component count, immunity to magnetic tampering, and unparalleled reliability. The CXEP2338A/CXEP2338B  integrate our Single Converter Technology  with a 22-bit delta sigma ADC, a customizable 32-bit computation engine (CE) for core metrology functions, as well as a user-programmable 8051-compatible application processor (MPU) core with 64KB flash and 5KB RAM An external host processor can access metrology functions directly through the SPI interface, or alternatively through the embedded MPU core in applications requiring metrology data capture, storage, and preprocessing within the metrology subsystem. In addition, the devices integrate an RTC, DIO, and UART. A complete array of ICE and development tools, programming libraries, and reference designs enable rapid development and certification of meters that meet all ANSI and IEC electricity metering standards worldwide The CXEP2338A/CXEP2338B operate over the industrial temperature range and come in a 64-pin lead(Pb)-free package.

   产品特点 返回TOPPWd嘉泰姆


SoC Integration and Unique Isolation Technique Reduces BOM Cost Without Sacrificing PerformancePWd嘉泰姆

0.1% Typical Accuracy Over 2000:1 Current RangePWd嘉泰姆

Exceeds IEC 62053/ANSI C12.20 StandardsPWd嘉泰姆

Four-Quadrant MeteringPWd嘉泰姆

46-64Hz Line Frequency Range with the Same CalibrationPWd嘉泰姆

Phase Compensation (±10°)PWd嘉泰姆

Independent 32-Bit Compute EnginePWd嘉泰姆

64KB Flash, 5KB RAMPWd嘉泰姆

Built-In Flash SecurityPWd嘉泰姆

SPI Interface to Host with Flash Program CapabilityPWd嘉泰姆

Up to Four Pulse Outputs with Pulse CountPWd嘉泰姆

8-Bit MPU (80515), Up to 5 MIPS (Optional Use)PWd嘉泰姆

Full-Speed MPU Clock in Brownout ModePWd嘉泰姆

Up to 29 Multifunction DIO PinsPWd嘉泰姆

Hardware Watchdog Timer (WDT)PWd嘉泰姆

UART for AMR or Other Communication DutiesPWd嘉泰姆

I2C/EEPROM InterfacePWd嘉泰姆

Innovative Isolation Technology (Requires Companion CXEP2338A CXEP2338B Sensor, also from Maxim Integrated) Eliminates Current TransformersPWd嘉泰姆

Four Current Sensor Inputs with Selectable Differential ModePWd嘉泰姆

Selectable Gain of 1 or 8 for One Current Input to Support Neutral Current ShuntPWd嘉泰姆

High-Speed Wh/VARh Pulse Outputs with Programmable WidthPWd嘉泰姆

Digital Temperature Compensation Improves System PerformancePWd嘉泰姆

Metrology CompensationPWd嘉泰姆

Accurate RTC for TOU Functions with Automatic Temperature Compensation for Crystal in All Power ModesPWd嘉泰姆

Power Management Extends Battery Life During Power OutagesPWd嘉泰姆

Brownout Mode (BRN)PWd嘉泰姆

Sleep Mode (SLP)PWd嘉泰姆

Two Battery-Backup Modes:PWd嘉泰姆

Wake-Up on Pin Events and Wake-On TimerPWd嘉泰姆

1μA in Sleep ModePWd嘉泰姆

   应用范围 返回TOPPWd嘉泰姆


Three-Phase Residential, Commercial, and Industrial Energy MetersPWd嘉泰姆

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 QQ截图20160419174301.jpgPWd嘉泰姆

产品封装图 返回TOPPWd嘉泰姆


image.pngPWd嘉泰姆

电路原理图 返回TOPPWd嘉泰姆


image.pngPWd嘉泰姆

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