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 Solutionwqx嘉泰姆

Supports Up to 5 Multiplexed Inputswqx嘉泰姆

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

Dual-Core Architecture Improves System Performancewqx嘉泰姆

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

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

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

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

Supports Current Transformers or Shunts for Current Measurementwqx嘉泰姆

RTC with Hardware Temperature Compensationwqx嘉泰姆

Digital Temperature Compensation for Metrologywqx嘉泰姆

45Hz to 65Hz Line Frequency Rangewqx嘉泰姆

Phase Compensation (10)wqx嘉泰姆

Four Pulse Outputswqx嘉泰姆

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

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

Five General-Purpose Timerswqx嘉泰姆

Touch Switch Inputwqx嘉泰姆

SPI (Master and Slave)wqx嘉泰姆

I²C (Master and Slave)wqx嘉泰姆

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

Small 64-Pin LQFP Package Saves Board Spacewqx嘉泰姆

Low-Power Operation Extends Battery Lifewqx嘉泰姆

Enables Metering Mode Operation During Neutral Disconnect Tamperingwqx嘉泰姆

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

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

1.75μA Typical Sleep Mode Currentwqx嘉泰姆

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Residential Meterswqx嘉泰姆

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