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 SolutionwPz嘉泰姆

Supports Up to 5 Multiplexed InputswPz嘉泰姆

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

Dual-Core Architecture Improves System PerformancewPz嘉泰姆

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

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

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

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

Supports Current Transformers or Shunts for Current MeasurementwPz嘉泰姆

RTC with Hardware Temperature CompensationwPz嘉泰姆

Digital Temperature Compensation for MetrologywPz嘉泰姆

45Hz to 65Hz Line Frequency RangewPz嘉泰姆

Phase Compensation (10)wPz嘉泰姆

Four Pulse OutputswPz嘉泰姆

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

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

Five General-Purpose TimerswPz嘉泰姆

Touch Switch InputwPz嘉泰姆

SPI (Master and Slave)wPz嘉泰姆

I²C (Master and Slave)wPz嘉泰姆

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

Small 64-Pin LQFP Package Saves Board SpacewPz嘉泰姆

Low-Power Operation Extends Battery LifewPz嘉泰姆

Enables Metering Mode Operation During Neutral Disconnect TamperingwPz嘉泰姆

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

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

1.75μA Typical Sleep Mode CurrentwPz嘉泰姆

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Residential MeterswPz嘉泰姆

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