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1.产品概述       2.产品特点     92q嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）92q嘉泰姆

5.产品封装       6.电路原理图  92q嘉泰姆

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   产品概述 返回TOP92q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TOP92q嘉泰姆

SoC Integration and Unique Isolation Technique Reduces BOM Cost Without Sacrificing Performance92q嘉泰姆

0.1% Typical Accuracy Over 2000:1 Current Range92q嘉泰姆

Exceeds IEC 62053/ANSI C12.20 Standards92q嘉泰姆

Four-Quadrant Metering92q嘉泰姆

46-64Hz Line Frequency Range with the Same Calibration92q嘉泰姆

Phase Compensation (±10°)92q嘉泰姆

Independent 32-Bit Compute Engine92q嘉泰姆

64KB Flash, 5KB RAM92q嘉泰姆

Built-In Flash Security92q嘉泰姆

SPI Interface to Host with Flash Program Capability92q嘉泰姆

Up to Four Pulse Outputs with Pulse Count92q嘉泰姆

8-Bit MPU (80515), Up to 5 MIPS (Optional Use)92q嘉泰姆

Full-Speed MPU Clock in Brownout Mode92q嘉泰姆

Up to 29 Multifunction DIO Pins92q嘉泰姆

Hardware Watchdog Timer (WDT)92q嘉泰姆

UART for AMR or Other Communication Duties92q嘉泰姆

I²C/EEPROM Interface92q嘉泰姆

Innovative Isolation Technology (Requires Companion CXEP2338A CXEP2338B Sensor, also from Maxim Integrated) Eliminates Current Transformers92q嘉泰姆

Four Current Sensor Inputs with Selectable Differential Mode92q嘉泰姆

Selectable Gain of 1 or 8 for One Current Input to Support Neutral Current Shunt92q嘉泰姆

High-Speed Wh/VARh Pulse Outputs with Programmable Width92q嘉泰姆

Digital Temperature Compensation Improves System Performance92q嘉泰姆

Metrology Compensation92q嘉泰姆

Accurate RTC for TOU Functions with Automatic Temperature Compensation for Crystal in All Power Modes92q嘉泰姆

Power Management Extends Battery Life During Power Outages92q嘉泰姆

Brownout Mode (BRN)92q嘉泰姆

Sleep Mode (SLP)92q嘉泰姆

Two Battery-Backup Modes:92q嘉泰姆

Wake-Up on Pin Events and Wake-On Timer92q嘉泰姆

1μA in Sleep Mode92q嘉泰姆

   应用范围 返回TOP92q嘉泰姆

Three-Phase Residential, Commercial, and Industrial Energy Meters92q嘉泰姆

   技术规格书（产品PDF) 返回TOP 92q嘉泰姆

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产品封装图 返回TOP92q嘉泰姆

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电路原理图 返回TOP92q嘉泰姆

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Next▶:The CXEP2339 isolated sensor ICs enable 4th-generation CXEP2339 systems-on-chips (SoCs) to use nonisolating sensors such as resistive shunts without the need for costly and nonlinear isolation transfo