78M6610+LMU Data Sheet
Table of Contents
Electrical Specifications.............................................................................................................................5
Absolute Maximum Ratings ..................................................................................................................5
Recommended External Components..................................................................................................5
Recommended Operating Conditions...................................................................................................5
Performance Specifications ..................................................................................................................6
Input Logic Levels .......................................................................................................................6
Output Logic Levels ....................................................................................................................6
Supply Current ............................................................................................................................6
Crystal Oscillator .........................................................................................................................6
Internal RC Oscillator..................................................................................................................6
ADC Converter, V3P3 Referenced................................................................................................7
Timing Specifications............................................................................................................................8
Reset...........................................................................................................................................8
SPI Slave Port.............................................................................................................................8
I2C Slave Port (Note 1)................................................................................................................9
Pin Configuration......................................................................................................................................10
Package Information...........................................................................................................................11
On-Chip Resources Overview .................................................................................................................12
IC Block Diagram ................................................................................................................................12
Clock Management.............................................................................................................................13
Power-On and Reset Circuitry ............................................................................................................14
Watchdog Timer..................................................................................................................................14
Analog Front-End and Conversion .....................................................................................................15
24-Bit Energy Measurement Processor (EMP)...................................................................................15
Flash and RAM..........................................................................................................................15
Multipurpose DIOs ..............................................................................................................................15
Communication Interface ..........................................................................................................15
Functional Description and Operation....................................................................................................16
Measurement Interface.......................................................................................................................16
AFE Input Multiplexer................................................................................................................16
High Pass Filters and Offset Removal ......................................................................................17
Gain Correction .........................................................................................................................18
Die Temperature Compensation...............................................................................................18
Phase Compensation................................................................................................................19
Voltage Input Configuration.......................................................................................................20
Current Input Configuration.......................................................................................................23
Data Refresh Rates ............................................................................................................................26
Scaling Registers................................................................................................................................26
Calibration...........................................................................................................................................27
Voltage and Current Gain Calibration .......................................................................................27
Offset Calibration ......................................................................................................................27
Die Temperature Calibration.....................................................................................................27
Voltage Channel Measurements ........................................................................................................28
Quadrature Voltage...................................................................................................................28
Voltage Frequency....................................................................................................................28
Peak Voltage.............................................................................................................................28
RMS Voltage .............................................................................................................................28
Current Channel Measurements.........................................................................................................29
Peak Current .............................................................................................................................29
RMS Current .............................................................................................................................30
Crest Factor...............................................................................................................................30
Power Calculations .............................................................................................................................31
Active Power (P) .......................................................................................................................31
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