71M6545HT

Poly-phase 80515 SoCs

Part Number	71M6545HT
Phase	3P
User MPU Core	80515
Internal Flash (KBytes)	64
Internal RAM (KBytes)	5
Analog Input	Differential
Sensor Inputs (Current+Voltage)	4D + 3
MCU MIPS	5
RTC	Yes
LCD Driver Pixels (max)
GPIO	29
UARTs	1
Package

SoC Integration and Unique Isolation Technique Reduces BOM Cost Without Sacrificing Performance
- 0.1% Typical Accuracy Over 2000:1 Current Range
- Exceeds IEC 62053/ANSI C12.20 Standards
- Four-Quadrant Metering
- 46-64Hz Line Frequency Range with the Same Calibration
- Phase Compensation (±10°)
- Independent 32-Bit Compute Engine
- 64KB Flash, 5KB RAM
- Built-In Flash Security
- SPI Interface to Host with Flash Program Capability
- Up to Four Pulse Outputs with Pulse Count
- 8-Bit MPU (80515), Up to 5 MIPS (Optional Use)
- Full-Speed MPU Clock in Brownout Mode
- Up to 29 Multifunction DIO Pins
- Hardware Watchdog Timer (WDT)
- UART for AMR or Other Communication Duties
- I²C/MICROWIRE^®EEPROM Interface
Innovative Isolation Technology (Requires Companion 71M6xxx Sensor, also from Maxim Integrated) Eliminates Current Transformers
- Four Current Sensor Inputs with Selectable Differential Mode
- Selectable Gain of 1 or 8 for One Current Input to Support Neutral Current Shunt
- High-Speed Wh/VARh Pulse Outputs with Programmable Width
Digital Temperature Compensation Improves System Performance
- Metrology Compensation
- Accurate RTC for TOU Functions with Automatic Temperature Compensation for Crystal in All Power Modes
Power Management Extends Battery Life During Power Outages
- Two Battery-Backup Modes:
  - Brownout Mode (BRN)
  - Sleep Mode (SLP)
Wake-Up on Pin Events and Wake-On Timer
- 1µA in Sleep Mode