Energy Meter

To enable a wide range of utility metering solutions, Microchip offers a flexible Microcontroller (MCU) and Digital Signal Controller (DSC) platform solution with a common Integrated Development Environment (IDE) - MPLAB^® IDE. The broad portfolio of 8/16/32-bit MCUs and DSCs lowers total system cost by enabling the appropriate level of integration to match utility metering system requirements and reducing battery life through eXtreme Low Power (XLP) performance. Design flexibilty for adapting to changing or local system requirements is provided through our unique approach that allows easy migration across the entire MCU and DSC portfolio. Available utility metering solutions with free agency calculation firmware range from a single-chip design with the PIC18F87J72 which offers ease of use and smaller board space to a flexible two-chip solution using Microchip's energy measuring IC with any PIC^® MCU or dsPIC^® DSC.

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Technology

eXtreme Low Power with XLP Technology

• Sleep currents down to 20 nA; Real-Time Clock down to 400 nA extends operation in outage conditions
• Wake-up sources including Real-Time Clock (RTC), Timer (WDT), Brown-out Reset (BOR), Interrupts, Reset, or Power-on Reset (POR)
• Active Mode currents down to 50 uA/MHz

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Integrated Real-Time-Clock and Calendar (RTCC)

• Full calendar and time with Leap Year adjustment
• Built-in RTCCAL register for Watch Crystal calibration
• Temperature compensation available with measurement from Charge Time Measurement Unit (CTMU) and external

LCD Integration

• Up to 480 Segments
• Display in Sleep Mode
• Integrated Charge
• Pump available for contrast control

Industry Leading Performance

• High performance 8, 16, and 32-bit processors
• Up to 1.65 DMIPS/MHz with the 32-bit PIC32
• Up to 80 MHz and 512KB of Flash