产品概述 返回TOPt77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TOPt77嘉泰姆

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SoC Integration and Unique Isolation Technique Reduces BOM Cost Without Sacrificing Performancet77嘉泰姆

0.1% Typical Accuracy Over 2000:1 Current Ranget77嘉泰姆

Exceeds IEC 62053/ANSI C12.20 Standardst77嘉泰姆

Four-Quadrant Meteringt77嘉泰姆

46-64Hz Line Frequency Range with the Same Calibrationt77嘉泰姆

Phase Compensation (±10°)t77嘉泰姆

Independent 32-Bit Compute Enginet77嘉泰姆

64KB Flash, 5KB RAMt77嘉泰姆

Built-In Flash Securityt77嘉泰姆

SPI Interface to Host with Flash Program Capabilityt77嘉泰姆

Up to Four Pulse Outputs with Pulse Countt77嘉泰姆

8-Bit MPU (80515), Up to 5 MIPS (Optional Use)t77嘉泰姆

Full-Speed MPU Clock in Brownout Modet77嘉泰姆

Up to 29 Multifunction DIO Pinst77嘉泰姆

Hardware Watchdog Timer (WDT)t77嘉泰姆

UART for AMR or Other Communication Dutiest77嘉泰姆

I²C/MICROWIRE^®EEPROM Interfacet77嘉泰姆

Innovative Isolation Technology (Requires Companion CXEP2338A CXEP2338B Sensor, also from Maxim Integrated) Eliminates Current Transformerst77嘉泰姆

Four Current Sensor Inputs with Selectable Differential Modet77嘉泰姆

Selectable Gain of 1 or 8 for One Current Input to Support Neutral Current Shuntt77嘉泰姆

High-Speed Wh/VARh Pulse Outputs with Programmable Widtht77嘉泰姆

Digital Temperature Compensation Improves System Performancet77嘉泰姆

Metrology Compensationt77嘉泰姆

Accurate RTC for TOU Functions with Automatic Temperature Compensation for Crystal in All Power Modest77嘉泰姆

Power Management Extends Battery Life During Power Outagest77嘉泰姆

Brownout Mode (BRN)t77嘉泰姆

Sleep Mode (SLP)t77嘉泰姆

Two Battery-Backup Modes:t77嘉泰姆

Wake-Up on Pin Events and Wake-On Timert77嘉泰姆

1μA in Sleep Modet77嘉泰姆

   应用范围 返回TOPt77嘉泰姆

Three-Phase Residential, Commercial, and Industrial Energy Meterst77嘉泰姆

   技术规格书（产品PDF) 返回TOP t77嘉泰姆

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