ZON P3/P3L Polyphase Electricity Meter SoC

The ZON™ P3L/P3 (MAX71334L/MAX71335L) metering SoC (systems on chip) integrates dual 32-bit processors for polyphase metering applications. It contains 256KB flash (ZON P3) or 128KB flash (ZON P3L), 12KB RAM and a single-cycle 32 x 32 + 64 multiplier. The application processor (CPU) is a 32-bit MAXQ®30 core. The metrology processor is a proprietary compute engine (CE), a 32-bit RISC processor dedicated to computing the metering parameters from voltage and current samples.

Applications

* Polyphase electricity meters * Polyphase energy monitoring * Smart Meters

* Dual-Core Architecture for Improved System Performance and Flexibility

* Dedicated 32-Bit DSP Compute Engine for Metrology Processing

* MAXQ30 32-Bit RISC MPU Core, Up to 10 MIPS (at 10MHz), with 256kB Flash or 128kB Flash, and 12kB data RAM

* Advanced AFE with High Accuracy and Temperature Stability

* Four Independent ADCs Measuring Four Current Channels and Three Voltage Channels

* 0.1% Wh Accuracy over 2000:1 Current Range

* Digital Temperature Compensation for Metrology and RTC

* 40Hz–70Hz Line Frequency Range, Phase Compensation (±10°)

* Low-Power 5ksps Auxiliary ADC for Environmental Monitoring

* On-Chip Digital Temperature Sensor

* Highly Integrated Product Features and Flexible Peripherals Support Broad Application Needs

* LCD Controller Supporting Up to Eight Common Planes

* Two PWM Control Channels with Programmable Frequency, Duty Cycle, Ramp Time

* Two Touch Switch Inputs

* Oscillator Based on 32kHz Watch Crystal with Internal 24MHz Backup R/C Oscillator

* SPI (Master and Slave), Master I2C

* Four UARTs (Configurable Pins), Smart Card Interface, 38kHz IR Decoder

* 100-Pin LQFP