The CXEP2341L 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

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The CXEP2341L 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 MAXQ30 MPU core handles other application functions including communications and display control.

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Single ADC Offers High-Accuracy Performance and Cost-Effective Solutionq4i嘉泰姆

Supports Up to 5 Multiplexed Inputsq4i嘉泰姆

0.1% (typ) Wh Accuracy over 2000:1 Current Rangeq4i嘉泰姆

Dual-Core Architecture Improves System Performanceq4i嘉泰姆

Dedicated 32-bit DSP Core for High-Rate Metrology Processingq4i嘉泰姆

MAXQ30 32-Bit RISC MPU, 10 MIPS (at 10MHz)q4i嘉泰姆

Highly Integrated Product Features and Flexible Peripherals Support Broad Application Needsq4i嘉泰姆

128KB (M1) or 64KB (M1L) Flash, 8KB SRAMq4i嘉泰姆

Supports Current Transformers or Shunts for Current Measurementq4i嘉泰姆

RTC with Hardware Temperature Compensationq4i嘉泰姆

Digital Temperature Compensation for Metrologyq4i嘉泰姆

45Hz to 65Hz Line Frequency Rangeq4i嘉泰姆

Phase Compensation (10)q4i嘉泰姆

Four Pulse Outputsq4i嘉泰姆

LCD Controller Supports Up to 39 Segment Drivers and Up to Six Common Planesq4i嘉泰姆

Two PWM Channels with Programmable Frequency, Duty Cycle, Ramp Timeq4i嘉泰姆

Five General-Purpose Timersq4i嘉泰姆

Touch Switch Inputq4i嘉泰姆

SPI (Master and Slave)q4i嘉泰姆

I²C (Master and Slave)q4i嘉泰姆

3x UARTs (One with Optical Encoder)q4i嘉泰姆

Small 64-Pin LQFP Package Saves Board Spaceq4i嘉泰姆

Low-Power Operation Extends Battery Lifeq4i嘉泰姆

Enables Metering Mode Operation During Neutral Disconnect Tamperingq4i嘉泰姆

5.6mA Consumption at 3.3V in Typical Metering Modeq4i嘉泰姆

1.6mA Typical Current Consumption at 3.3V in Low-Power Metering Modeq4i嘉泰姆

1.75μA Typical Sleep Mode Currentq4i嘉泰姆

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Residential Metersq4i嘉泰姆

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