CXEP2342电能表片上系统（SoC）集成了双32位处理器，具有128KB或64KB闪存、8KB RAM和单周期32 x 32+64乘法器，可满足要求的单相电能表应用。低功率计量模式允许在中性点断开干扰的情况下进行计量。低功耗专用计算引擎（CE）处理高速计量处理，32位MPU核心处理其他应用功能，包括通信和显示控制。
单个ADC提供高精度性能和经济高效的解决方案
最多支持5个多路输入
0.1%（典型值）Wh精度超过2000:1电流范围
双核架构提高系统性能
用于高速计量处理的专用32位数字信号处理器核心
32位RISC MPU，10 MIPS（10MHz）
高度集成的产品功能和灵活的外围设备支持广泛的应用需求
128KB（M1）或64KB（M1L）闪存，8KB SRAM
支持电流测量用电流互感器或分流器
带硬件温度补偿的RTC
计量数字温度补偿
45Hz至65Hz线频率范围
相位补偿（10）
四脉冲输出
LCD控制器支持多达39个段驱动程序和多达6个公共平面
具有可编程频率、占空比、斜坡时间的两个PWM通道
五个通用计时器
触摸开关输入
SPI（主从）
I2C（主从）
3x UART（一个带光电编码器）
小型64针LQFP封装节省了电路板空间
低功耗操作延长电池寿命
在空档断开篡改期间启用计量模式操作
典型计量模式下3.3V下的5.6mA功耗
低功率计量模式下3.3V时的1.6mA典型电流消耗
1.75μA典型睡眠模式电流
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[ CXEP2342 ]
目录
7.相关产品
产品概述 返回TOP
The CXEP2342L electricity meter systems-on-chip (SoC) integrate dual 32-bit processors for demanding single-phase metering applications with 128KB or 64KB flash, 8KB RAM, and a single-cycle 32 x 32 + 64 multiplier. A low-power metering mode allows metering in the presence of neutral disconnect tampering. The low-power, dedicated compute engine (CE) handles high-rate metrology processing and a 32-bit MPU core handles other application functions including communications and display control.
产品特点 返回TOP
Single ADC Offers High-Accuracy Performance and Cost-Effective Solution
Supports Up to 5 Multiplexed Inputs
0.1% (typ) Wh Accuracy over 2000:1 Current Range
Dual-Core Architecture Improves System Performance
Dedicated 32-bit DSP Core for High-Rate Metrology Processing
32-Bit RISC MPU, 10 MIPS (at 10MHz)
Highly Integrated Product Features and Flexible Peripherals Support Broad Application Needs
128KB (M1) or 64KB (M1L) Flash, 8KB SRAM
Supports Current Transformers or Shunts for Current Measurement
RTC with Hardware Temperature Compensation
Digital Temperature Compensation for Metrology
45Hz to 65Hz Line Frequency Range
Phase Compensation (10)
Four Pulse Outputs
LCD Controller Supports Up to 39 Segment Drivers and Up to Six Common Planes
Two PWM Channels with Programmable Frequency, Duty Cycle, Ramp Time
Five General-Purpose Timers
Touch Switch Input
SPI (Master and Slave)
I2C (Master and Slave)
3x UARTs (One with Optical Encoder)
Small 64-Pin LQFP Package Saves Board Space
Low-Power Operation Extends Battery Life
Enables Metering Mode Operation During Neutral Disconnect Tampering
5.6mA Consumption at 3.3V in Typical Metering Mode
1.6mA Typical Current Consumption at 3.3V in Low-Power Metering Mode
1.75μA Typical Sleep Mode Current
应用范围 返回TOP
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 |
|
3P |
||||||||||
|
3P |
||||||||||
|
1P |
||||||||||
|
3P |
||||||||||
|
1P |
64 |
7 |
Singleend |
2SE + 1 |
5 |
Yes |
128 (32x4) |
12 |
2 |
|
|
1P |
64 |
7 |
Singleend |
2SE + 1 |
5 |
Yes |
128 (32x4) |
12 |
2 |
|
|
3P |
64 |
7 |
Singleend |
3SE + 3 |
5 |
Yes |
168 (42x4) |
22 |
2 |
|
|
3P |
64 |
7 |
Singleend |
3SE + 3 |
5 |
Yes |
168 (42x4) |
22 |
2 |
|
|
3P |
64 |
7 |
Singleend |
3SE + 3 |
5 |
Yes |
8 |
1 |
||
|
1P/2P |
128 |
4 |
Singleend |
2SE + 2 |
10 |
Yes |
156 (39x4) |
22 |
2 |
|
|
1P/2P |
256 |
4 |
Singleend |
2SE + 2 |
10 |
Yes |
156 (39x4) |
22 |
2 |
|
|
1P/2P |
128 |
4 |
Differential |
2D + 2 |
10 |
Yes |
268 (67x4) |
43 |
2 |
|
|
1P/2P |
256 |
4 |
Differential |
2D + 2 |
10 |
Yes |
268 (67x4) |
43 |
2 |
|
|
3P |
128 |
4 |
Differential |
4D + 3 |
10 |
Yes |
228 (57x4) |
39 |
2 |
|
|
3P |
128 |
4 |
Differential |
4D + 3 |
10 |
Yes |
228 (57x4) |
39 |
2 |
|
|
3P |
128 |
4 |
Differential |
4D + 3 |
10 |
Yes |
300 (75x4) |
52 |
2 |
|
|
3P |
256 |
4 |
Differential |
4D + 3 |
10 |
Yes |
300 (75x4) |
52 |
2 |
|
|
1P |
32 |
3 |
Differential |
2D + 1 |
5 |
Yes |
222 (37x6) |
30 |
2 |
|
|
1P |
64 |
5 |
Differential |
2D + 1 |
5 |
Yes |
222 (37x6) |
30 |
2 |
|
|
1P |
128 |
5 |
Differential |
2D + 1 |
5 |
Yes |
222 (37x6) |
30 |
2 |
|
|
1P/2P |
64 |
5 |
Differential |
2D + 2 |
5 |
Yes |
336 (56x6) |
51 |
2 |
|
|
1P/2P |
128 |
5 |
Differential |
2D + 2 |
5 |
Yes |
336 (56x6) |
51 |
2 |
|
|
3P |
64 |
5 |
Differential |
4D + 3 |
5 |
Yes |
336 (56x6) |
51 |
2 |
|
|
3P |
128 |
5 |
Differential |
4D + 3 |
5 |
Yes |
336 (56x6) |
51 |
2 |
|
|
3P |
128 |
5 |
Differential |
4D + 3 |
5 |
Yes |
336 (56x6) |
51 |
2 |
|
|
3P |
64 |
5 |
Differential |
4D + 3 |
5 |
Yes |
336 (56x6) |
51 |
2 |
|
|
3P |
64 |
5 |
Differential |
4D + 3 |
5 |
Yes |
29 |
1 |
||
|
3P |
64 |
5 |
Differential |
4D + 3 |
5 |
Yes |
29 |
1 |
||
|
1P |
||||||||||
|
1P ,3P |
0 |
0 |
Differential |
2D |
300(50x6) |
70 |
0 |
|||
|
1P/2P |
64 |
8 |
Differential |
2D + 2 |
10 |
Yes |
156(39x4) 190(38X5) 222(37x6) |
39 |
3 |
|
|
1P/2P |
128 |
8 |
Differential |
2D + 2 |
10 |
Yes |
156(39x4) 190(38X5) 222(37x6) |
39 |
3 |
|
|
1P |
256 |
48 |
Differential |
4D + 3SE |
20 |
Yes |
160(40x4) 228(38x6) 288(36x8) |
88 |
5 |
|
|
1P |
512 |
48 |
Differential |
4D + 3SE |
20 |
Yes |
160(40x4) 228(38x6) 288(36x8) |
88 |
5 |
|
|
3P |
256 |
48 |
Differential |
4D + 3SE |
20 |
Yes |
160(40x4) 228(38x6) 288(36x8) |
88 |
5 |
|
|
3P |
512 |
48 |
Differential |
4D + 3SE |
20 |
Yes |
160(40x4) 228(38x6) 288(36x8) |
88 |
5 |
|
|
1P 1P/2P |
1024 |
128 |
Differential |
2D + 2 |
54 |
Yes |
300(50x6) |
70 |
7 |
|
|
3P |
1024 |
128 |
Differential |
4D + 3SE |
54 |
Yes |
300(50x6) |
70 |
8 |
|
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