CXEP2329 CXEP2329A是高度集成的soc有MPU核RTC flash和LCD驱动器delta-sigma ADC提供6个模拟输入数字温度补偿精密电压基准和32位计算引擎CE支持多种单相和多相计量应用

CXEP2329 CXEP2329A是高度集成的soc，具有MPU核、RTC、flash和LCD驱动器，delta-sigma ADC提供多达6个模拟输入。数字温度补偿、精密电压基准和32位计算引擎（CE）支持多种单相和多相计量应用，很少有低成本的外部组件。整个系统的32kHz晶体时基和RAM和RTC的内部电池备份支持进一步降低了系统成本。多个UART、I2C、电源故障比较器、5V LCD充电泵、高达22个DIO管脚和系统内可编程闪存支持最大的设计灵活性。该设备是多功能家用/商用电表应用的标准（0.5%）精度版本，需要多个电压/电流输入和复杂的LCD或DIO配置。一整套ICE和开发工具、编程库和参考设计可快速开发和认证满足大多数要求的电表要求全世界的电力计量标准。
在2000:1电流范围内，Wh精度<0.1%
超过IEC 62053/ANSIC 12.20
电压参考值<10ppm/
摄氏度（CXEP2329A）<40ppm/℃（CXEP2329）
参考六个传感器输入VDD
中性点电流的辅助模拟输入
低抖动Wh/VARh脉冲输出
脉冲输出的脉冲计数
四象限计量
相序
实时时钟的线路频率计数
数字温度补偿
垂度检测
独立的32位计算引擎
具有相同校准的40-70Hz线频率范围
相位补偿（7度）
为RAM和RTC提供备用电池
3.3V时22mW，7.2μW备用
带安全性的闪存选项
8位微处理器（80515）-每条指令一个时钟周期
液晶显示器驱动器（168像素）
高速SSI串行输出
使用时间功能的RTC

目录

1.产品概述       2.产品特点     

3.应用范围       4.技术规格书下载（PDF文档）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

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The CXEP2329 and CXEP2329A are highly integrated SoCs with an MPU core, RTC, flash, and LCD driver, delta-sigma ADC provides up to six analog inputs. Digital temperature compensation, precision voltage reference, and 32-bit computation engine (CE) supports a wide range of single and polyphase metering applications with very few low-cost external components. A 32kHz crystal time base for the entire system and internal battery-backup support for RAM and RTC further reduce system cost.Maximum design flexibility is supported with multiple UARTs, I2C, a power-fail comparator, a 5V LCD charge pump, up to 22 DIO pins, and an in-system programmable flash. The device is a standard (0.5%) accuracy version for multifunction residential/commercial meter applications requiring multiple voltage/current inputs and complex LCD or DIO configurations.A complete array of ICE and development tools, programming libraries, and reference designs enable rapid development and certification of meters that meet most demanding worldwide electricity metering standards.

   产品特点 返回TOP

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Wh Accuracy < 0.1% Over 2,000:1 Current Range 

 Exceeds IEC 62053/ANSIC 12.20 

 Voltage Reference < 10ppm/

C (CXEP2329A) < 40ppm/°C (CXEP2329) 

 Six Sensor Inputs—VDD Referenced 

 Auxiliary Analog Input for Neutral Current 

 Low Jitter Wh/VARh Pulse Outputs 

 Pulse Count For Pulse Outputs 

 Four-Quadrant Metering 

 Phase Sequencing 

 Line Frequency Count for RTC 

 Digital Temperature Compensation 

 Sag Detection 

 Independent 32-Bit Compute Engine 

 40-70Hz Line Frequency Range with Same Calibration 

 Phase Compensation (7) 

 Battery Backup for RAM and RTC 

 22mW at 3.3V, 7.2W Backup 

 Flash Memory Option with Security 

 8-Bit MPU (80515)—One Clock Cycle per Instruction 

 LCD Driver ( 168 Pixels) 

 High-Speed SSI Serial Output 

 RTC for Time-of-Use Functions 

 Hardware Watchdog Timer 

 Up to 22 General-Purpose I/O Pins 

 64KB Flash, 7KB RAM 

 Two UARTs for IR and AMR 

 100-Pin LQFP Package

   应用范围 返回TOP

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Industrial, Commercial, and Residential Meters

   技术规格书（产品PDF) 返回TOP 

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产品封装图 返回TOP

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电路原理图 返回TOP 

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Electricity Metering ICs
Part Number	Phase	Internal  Flash(KB)	Internal  RAM(KB)	Analog Input	Sensor Inputs   (Current+Voltage)	MCU MIPS	RTC	LCD Driver Pixels(max)	GPIO	UARTs
CXEP2324	3P
CXEP2325	3P
CXEP2326	1P
CXEP2327	3P
CXEP2328	1P	64	7	Singleend	2SE + 1	5	Yes	128 (32x4)	12	2
CXEP2328A	1P	64	7	Singleend	2SE + 1	5	Yes	128 (32x4)	12	2
CXEP2329	3P	64	7	Singleend	3SE + 3	5	Yes	168 (42x4)	22	2
CXEP2329A	3P	64	7	Singleend	3SE + 3	5	Yes	168 (42x4)	22	2
CXEP2330	3P	64	7	Singleend	3SE + 3	5	Yes		8	1
CXEP2331A	1P/2P	128	4	Singleend	2SE + 2	10	Yes	156 (39x4)	22	2
CXEP2331B	1P/2P	256	4	Singleend	2SE + 2	10	Yes	156 (39x4)	22	2
CXEP2332A	1P/2P	128	4	Differential	2D + 2	10	Yes	268 (67x4)	43	2
CXEP2332B	1P/2P	256	4	Differential	2D + 2	10	Yes	268 (67x4)	43	2
CXEP2333A	3P	128	4	Differential	4D + 3	10	Yes	228 (57x4)	39	2
CXEP2333B	3P	128	4	Differential	4D + 3	10	Yes	228 (57x4)	39	2
CXEP2334A	3P	128	4	Differential	4D + 3	10	Yes	300 (75x4)	52	2
CXEP2334B	3P	256	4	Differential	4D + 3	10	Yes	300 (75x4)	52	2
CXEP2335A	1P	32	3	Differential	2D + 1	5	Yes	222 (37x6)	30	2
CXEP2335B	1P	64	5	Differential	2D + 1	5	Yes	222 (37x6)	30	2
CXEP2335C	1P	128	5	Differential	2D + 1	5	Yes	222 (37x6)	30	2
CXEP2336A	1P/2P	64	5	Differential	2D + 2	5	Yes	336 (56x6)	51	2
CXEP2336B	1P/2P	128	5	Differential	2D + 2	5	Yes	336 (56x6)	51	2
CXEP2337A	3P	64	5	Differential	4D + 3	5	Yes	336 (56x6)	51	2
CXEP2337B	3P	128	5	Differential	4D + 3	5	Yes	336 (56x6)	51	2
CXEP2337C	3P	128	5	Differential	4D + 3	5	Yes	336 (56x6)	51	2
CXEP2337D	3P	64	5	Differential	4D + 3	5	Yes	336 (56x6)	51	2
CXEP2338A	3P	64	5	Differential	4D + 3	5	Yes		29	1
CXEP2338B	3P	64	5	Differential	4D + 3	5	Yes		29	1
CXEP2339	1P
CXEP2340	1P ,3P	0	0	Differential	2D			300(50x6)	70	0
CXEP2341	1P/2P	64	8	Differential	2D + 2	10	Yes	156(39x4)  190(38X5) 222(37x6)	39	3
CXEP2342	1P/2P	128	8	Differential	2D + 2	10	Yes	156(39x4)  190(38X5) 222(37x6)	39	3
CXEP2343	1P	256	48	Differential	4D + 3SE	20	Yes	160(40x4)  228(38x6) 288(36x8)	88	5
CXEP2344	1P	512	48	Differential	4D + 3SE	20	Yes	160(40x4)  228(38x6)  288(36x8)	88	5
CXEP2345	3P	256	48	Differential	4D + 3SE	20	Yes	160(40x4) 228(38x6) 288(36x8)	88	5
CXEP2346	3P	512	48	Differential	4D + 3SE	20	Yes	160(40x4)  228(38x6)  288(36x8)	88	5
CXEP2347	1P  1P/2P	1024	128	Differential	2D + 2	54	Yes	300(50x6)	70	7
CXEP2348	3P	1024	128	Differential	4D + 3SE	54	Yes	300(50x6)	70	8