Analog Devices MAX71314 (ZON M3)

Description

The MAX71314/MAX71315 integrate dual 32-bit processors for demanding single-phase metering applications with 256kB flash (MAX71315) or 128kB flash (MAX71314), 12kB RAM, and a single-cycle 32 x 32 + 64 multiplier. The user processor (MPU) is a 32-bit MAXQ®30 core. The metrology compute engine (CE) is a 32-bit processor dedicated to computing the metering parameters from voltage and current samples.

Features

• Four Independent Integrated Metrology Channels Provide High-Accuracy Performance ◦0.1% Typical Accuracy Over 5000:1
• Two Remote ADC Interfaces Provide Cost-Effective and Reliable Isolation for Shunts
• Dual-Core Architecture Improves System Performance and Allows Application Code Portability

◦Dedicated 32-Bit DSP Core for High-Rate Metrology Processing

◦MAXQ30 32-Bit RISC Applications MPU, 10 MIPS (at 10MHz)

• Low-Power Consumption Extends Battery Life

◦1.75µA Sleep Mode

• 100-Pin LQFP Package Offers Optimized Trade-Off Between Board Space and Digital IO Pins
• Highly Integrated Product Features and Flexible Peripherals Support Broad Application Needs

◦256KB Flash, 12KB SRAM (ZON M3)

◦128KB Flash, 12KB SRAM (ZON M3L)

◦Support Current Transformers, Rogowski Coils, and Shunts

◦RTC with Temperature Compensation

◦Digital Temperature Compensation for Metrology

◦45Hz to 65Hz Line Frequency Range with the Same Calibration

◦Phase Compensation (±10°)

◦Four Pulse Outputs from the Compute Engine (CE)

◦LCD Controller Supporting Up to Eight Common Planes

◦Two PWM Relay Control Channels with Programmable Frequency, Duty Cycle, and Ramp Time

◦Five General-Purpose Timers

◦Two Touch Switch Inputs

◦SPI (Master and Slave), Master I2C, 4x UARTs

◦Two Smart Card Ports

◦38kHz IR Encoder/Decoder

◦Low-Power 5ksps ADC for Environmental Monitoring

◦On-Chip Digital Temperature Sensor

Typical applications

• •Residential Electricity Meters
• •Energy Measurement

More information

• IC product information