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1. Describe
71M6513-IGT/F is a highly integrated system-on-chip SoC with MPU core, real-time clock (RTC), flash memory and LCD driver. Our Single Converter Technology® has a 21-bit delta-sigma ADC, six analog inputs, digital temperature compensation, a precision voltage reference, and a 32-bit calculation engine (CE) to support a wide range of multiphase metering applications-cost external components. The 32kHz crystal oscillator time base of the entire system and internal battery backup support for RAM and RTC further reduce system costs. Multiple UARTs, I2C, a power failure comparator, a 5V LCD charge pump, up to 22 DIO pins and an in-system programmable flash memory support maximum design flexibility. The device is available in high (0.1%) and standard (0.5%) accuracy versions, suitable for multi-function residential/commercial meter applications that require multiple voltage/current inputs and complex LCD or DIO configurations. A complete series of ICE and development tools, programming libraries and reference designs can quickly develop and certify electricity meters that meet the most demanding global electricity meter standards.
2. Feature
1. Within the current range of 2,000:1, Wh accuracy <0.1%
2. Exceeds IEC 62053/ANSIC 12.20
3. Reference voltage
<10ppm/°C (71M6513H)
<40ppm/°C (71M6513)
4. Six sensor inputs-refer to VDD
5. Auxiliary analog input for neutral current
6. Low jitter Wh/VARh pulse output
7. Pulse count for pulse output
8. Four-quadrant measurement
9. Phase sequence
10. RTC line frequency count
11. Digital temperature compensation
12. Sagging detection
13. Independent 32-bit calculation engine
14. 40-70Hz line frequency range, the same calibration
15. Phase compensation (±7°)
16. Battery backup of RAM and RTC
17. 22mW at 3.3V, 7.2µW backup
18. Secure flash option
19. 8-bit MPU (80515)-one clock cycle per instruction
20. LCD driver (≤ 168 pixels)
21. High-speed SSI serial output
22. RTC using time function
23. Hardware watchdog timer
24. Up to 22 general-purpose I/O pins
25. 64KB flash memory, 7KB RAM
26. Two UARTs for IR and AMR
28. 100-pin LQFP package
3. Analog Front End (AFE)
The AFE of the 71M6513 power meter IC consists of an input multiplexer and a delta-sigma A/D converter with voltage
4. Pin configuration
5. Package overview
