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 SolutionSpr嘉泰姆

Supports Up to 5 Multiplexed InputsSpr嘉泰姆

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

Dual-Core Architecture Improves System PerformanceSpr嘉泰姆

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

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

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

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

Supports Current Transformers or Shunts for Current MeasurementSpr嘉泰姆

RTC with Hardware Temperature CompensationSpr嘉泰姆

Digital Temperature Compensation for MetrologySpr嘉泰姆

45Hz to 65Hz Line Frequency RangeSpr嘉泰姆

Phase Compensation (10)Spr嘉泰姆

Four Pulse OutputsSpr嘉泰姆

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

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

Five General-Purpose TimersSpr嘉泰姆

Touch Switch InputSpr嘉泰姆

SPI (Master and Slave)Spr嘉泰姆

I²C (Master and Slave)Spr嘉泰姆

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

Small 64-Pin LQFP Package Saves Board SpaceSpr嘉泰姆

Low-Power Operation Extends Battery LifeSpr嘉泰姆

Enables Metering Mode Operation During Neutral Disconnect TamperingSpr嘉泰姆

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

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

1.75μA Typical Sleep Mode CurrentSpr嘉泰姆

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Residential MetersSpr嘉泰姆

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