产品概述 返回TOPmEA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TOPmEA嘉泰姆

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

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

Exceeds IEC 62053/ANSI C12.20 StandardsmEA嘉泰姆

Four-Quadrant MeteringmEA嘉泰姆

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

Phase Compensation (±10°)mEA嘉泰姆

Independent 32-Bit Compute EnginemEA嘉泰姆

64KB Flash, 5KB RAMmEA嘉泰姆

Built-In Flash SecuritymEA嘉泰姆

SPI Interface to Host with Flash Program CapabilitymEA嘉泰姆

Up to Four Pulse Outputs with Pulse CountmEA嘉泰姆

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

Full-Speed MPU Clock in Brownout ModemEA嘉泰姆

Up to 29 Multifunction DIO PinsmEA嘉泰姆

Hardware Watchdog Timer (WDT)mEA嘉泰姆

UART for AMR or Other Communication DutiesmEA嘉泰姆

I²C/MICROWIRE^®EEPROM InterfacemEA嘉泰姆

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

Four Current Sensor Inputs with Selectable Differential ModemEA嘉泰姆

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

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

Digital Temperature Compensation Improves System PerformancemEA嘉泰姆

Metrology CompensationmEA嘉泰姆

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

Power Management Extends Battery Life During Power OutagesmEA嘉泰姆

Brownout Mode (BRN)mEA嘉泰姆

Sleep Mode (SLP)mEA嘉泰姆

Two Battery-Backup Modes:mEA嘉泰姆

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

1μA in Sleep ModemEA嘉泰姆

   应用范围 返回TOPmEA嘉泰姆

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

   技术规格书（产品PDF) 返回TOP mEA嘉泰姆

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