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首页 > 产品中心 > MCU存储ADC时钟数据线 > MCU > 电能计量专用电路 >CXEP2331A CXEP2331B四个传感器输入采用32kHz的晶体时基为RAM和RTC提供内部电池备份支持2线3线和4线单相和双相住宅计量以及篡改检测机制两个电流通道和两个单端电压输入提供单端输入两个差分电流输入和三个单端电压输入
CXEP2331A CXEP2331B四个传感器输入采用32kHz的晶体时基为RAM和RTC提供内部电池备份支持2线3线和4线单相和双相住宅计量以及篡改检测机制两个电流通道和两个单端电压输入提供单端输入两个差分电流输入和三个单端电压输入
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CXEP2331A 整个系统采用32kHz的晶体时基,并为RAM和RTC提供内部电池备份支持,进一步降低了系统成本。该集成电路支持2线、3线和4线单相和双相住宅计量以及篡改检测机制。CXEP2331为两个电流通道和两个单端电压输入提供单端输入。CXEP2331有两个差分电流输入和三个单端电压输入。CXEP2331/32是高度集成的SoC设备,具有MPU核、RTC、闪存和LCD驱动器。专利的单转换器技术具有22位delta-sigma ADC、4个模拟输入、数字温度补偿、精确电压基准、电池电压监视器和32位计算引擎(CE),支持多种住宅计量应用,很少有低成本的外部组件。最大的设计灵活性是由多个UART、I2C,多达21个DIO管脚和系统内可编程闪存,可在运行中使用数据或应用程序代码进行更新。一整套ICE和开发工具、编程库和参考设计使符合全球电力计量标准的分时、自动抄表和预付费电表得以快速开发和认证。

在2000:1电流范围内,Wh精度<0.1%
超过IEC62053/ANSI C12.20标准
四个传感器输入
低抖动Wh和VARh加上两个附加脉冲测试输出(总共4个,最大10 kHz),脉冲计数
四象限计量
篡改检测(CT、Rogowski或分路中性电流、磁篡改输入)
RTC的线路频率计数
数字温度补偿
相位A和B的弧垂检测
独立的32位计算引擎
具有相同校准的46-64 Hz线频率范围。相位补偿(7度)
三种电池模式,带计时器或按钮唤醒:无电模式(52μA典型)、LCD模式(21μA典型、DAC激活)睡眠模式(0.7μA典型)
电网断电时的能量显示
在3.3 V、MPU时钟频率614 kHz时,39 mW典型功耗
具有3360 Hz或2520 Hz采样率的22位增量西格玛ADC
·8位MPU(80515),每条指令1个时钟周期,最大10 MHz,带集成ICE进行调试
带时钟速率调整寄存器的TOU功能的RTC
硬件看门狗定时器、电源故障监视器
带4个公共段驱动程序的LCD驱动程序:高达156(CXEP2331A/B)或268像素(CXEP2331A/B)
最多22个(CXEP2331A/B)或43个(CXEP2331A/B)通用I/O引脚。与5 V输入兼容的数字I/O引脚
32 kHz时基
高速从SPI接口到数据RAM
两个用于IR和AMR的uart,带调制的IR驱动器
带安全和系统内程序更新的闪存:128 KB(CXEP2331A/32A)256 KB(CXEP2331B/32B)
4kb微处理器x内存
工业温度范围
用于CXEP2331A/B的68针QFN封装可兼容,用于CXEP2331A/B的100针LQFP封装,无铅

CXEP2331A CXEP2331B四个传感器输入采用32kHz的晶体时基为RAM和RTC提供内部电池备份支持2线3线和4线单相和双相住宅计量以及篡改检测机制两个电流通道和两个单端电压输入提供单端输入两个差分电流输入和三个单端电压输入
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目录

1.产品概述       2.产品特点     hOU嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)hOU嘉泰姆

5.产品封装       6.电路原理图  hOU嘉泰姆

7.相关产品hOU嘉泰姆

   产品概述 返回TOPhOU嘉泰姆


A 32kHz crystal time base for the entire system and internal battery-backup support for RAM and RTC further reduce system cost. The IC supports 2-wire, 3-wire, and 4-wire single-phase and dual-phase residential metering along with tamper-detection mechanisms. The CXEP2331 offers single-ended inputs for two current channels and two single-ended voltage inputs. The CXEP2331 have two differential current inputs and three single-ended voltage inputs.The CXEP2331/32 are highly integrated SoC devices with an MPU core, RTC, flash, and LCD driver. The patented Single Converter Technology with a 22-bit, delta-sigma ADC; four analog inputs; digital temperature compensation; precision voltage reference; battery voltage monitor; and 32-bit computation engine (CE) supports a wide range of residential metering applications with very few low-cost external components.Maximum design flexibility is provided by multiple UARTs, I2C, up to 21 DIO pins, and in-system programmable flash memory, which can be updated with data or application code in operation.  A complete array of ICE and development tools, programming libraries, and reference designs enable rapid development and certification of TOU, AMR, and prepay meters that comply with worldwide electricity metering standards.

   产品特点 返回TOPhOU嘉泰姆


 Wh accuracy < 0.1% over 2000:1 current range hOU嘉泰姆

 Exceeds IEC62053/ANSI C12.20 standards hOU嘉泰姆

 Four sensor inputs hOU嘉泰姆

 Low-jitter Wh and VARh plus two additional pulse test outputs (4 total, 10 kHz maximum) with pulse count hOU嘉泰姆

 Four-quadrant metering hOU嘉泰姆

 Tamper detection (Neutral current with CT, Rogowski or shunt, magnetic tamper input) hOU嘉泰姆

 Line frequency count for RTC hOU嘉泰姆

 Digital temperature compensation hOU嘉泰姆

 Sag detection for phase A and B hOU嘉泰姆

 Independent 32-bit compute engine hOU嘉泰姆

 46-64 Hz line frequency range with same calibration. Phase compensation ( 7) hOU嘉泰姆

 Three battery modes with wake-up on timer or push-button: BROWNOUT Mode (52 μA typ.) LCD Mode (21 μA typ., DAC active) SLEEP Mode (0.7 μA typ.) hOU嘉泰姆

 Energy display during mains power failure hOU嘉泰姆

 39 mW typical consumption @ 3.3 V, MPU clock frequency 614 kHz hOU嘉泰姆

 22-bit delta-sigma ADC with 3360 Hz or 2520 Hz sample rate hOU嘉泰姆

 8-bit MPU (80515),1 clock cycle per instruction, 10 MHz maximum, with integrated ICE for debug hOU嘉泰姆

 RTC for TOU functions with clock-rate adjust register hOU嘉泰姆

 Hardware watchdog timer, power fail monitor hOU嘉泰姆

 LCD driver with 4 common segment drivers: Up to 156 (CXEP2331A/B) or 268 pixels (CXEP2331A/B) hOU嘉泰姆

 Up to 22 (CXEP2331A/B) or 43 (CXEP2331A/B) general-purpose I/O pins. Digital I/O pins compatible with 5 V inputs hOU嘉泰姆

 32 kHz time base hOU嘉泰姆

 High-speed slave SPI interface to data RAM hOU嘉泰姆

 Two UARTs for IR and AMR, IR driver with modulation hOU嘉泰姆

 FLASH memory with security and in-system program update: 128 KB (CXEP2331A/32A) 256 KB (CXEP2331B/32B) hOU嘉泰姆

 4 KB MPU XRAM hOU嘉泰姆

 Industrial temperature range hOU嘉泰姆

 68-pin QFN package for CXEP2331A/B pincompatible , 100-pin LQFP package for CXEP2331A/B, lead freehOU嘉泰姆

   应用范围 返回TOPhOU嘉泰姆


High-End Residential Meters, AMR/AMI, and TOUhOU嘉泰姆

Industrial, Commercial, and Grid MetershOU嘉泰姆

   技术规格书(产品PDF) 返回TOP hOU嘉泰姆


     需要详细的PDF规格书请扫一扫微信联系我们,还可以获得免费样品以及技术支持!hOU嘉泰姆

 QQ截图20160419174301.jpghOU嘉泰姆

产品封装图 返回TOPhOU嘉泰姆


image.pnghOU嘉泰姆

电路原理图 返回TOPhOU嘉泰姆


image.pnghOU嘉泰姆

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228(38x6)hOU嘉泰姆

288(36x8)hOU嘉泰姆

88hOU嘉泰姆

5hOU嘉泰姆

CXEP2346hOU嘉泰姆

3PhOU嘉泰姆

512hOU嘉泰姆

48hOU嘉泰姆

DifferentialhOU嘉泰姆

4D + 3SEhOU嘉泰姆

20hOU嘉泰姆

YeshOU嘉泰姆

160(40x4) hOU嘉泰姆

228(38x6) hOU嘉泰姆

288(36x8)hOU嘉泰姆

88hOU嘉泰姆

5hOU嘉泰姆

CXEP2347hOU嘉泰姆

1P hOU嘉泰姆

1P/2PhOU嘉泰姆

1024hOU嘉泰姆

128hOU嘉泰姆

DifferentialhOU嘉泰姆

2D + 2hOU嘉泰姆

54hOU嘉泰姆

YeshOU嘉泰姆

300(50x6)hOU嘉泰姆

70hOU嘉泰姆

7hOU嘉泰姆

CXEP2348hOU嘉泰姆

3PhOU嘉泰姆

1024hOU嘉泰姆

128hOU嘉泰姆

DifferentialhOU嘉泰姆

4D + 3SEhOU嘉泰姆

54hOU嘉泰姆

YeshOU嘉泰姆

300(50x6)hOU嘉泰姆

70hOU嘉泰姆

8hOU嘉泰姆