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71M6511-IGTR Datasheet(PDF) 4 Page - Teridian Semiconductor Corporation |
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71M6511-IGTR Datasheet(HTML) 4 Page - Teridian Semiconductor Corporation |
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4 / 95 page  71M6511/71M6511H Single-Phase Energy Meter IC DATA SHEET AUGUST 2007 Page: 4 of 95 © 2005-2007 TERIDIAN Semiconductor Corporation V2.6 SPECIFICATIONS ....................................................................................................................................................... 83 Electrical Specifications ................................................................................................................................. 83 LOGIC LEVELS............................................................................................................................... 84 VREF, VBIAS .................................................................................................................................. 86 CRYSTAL OSCILLATOR ................................................................................................................ 86 LCD BOOST.................................................................................................................................... 88 LCD DRIVERS ................................................................................................................................ 88 RTC ................................................................................................................................................. 88 RESETZ .......................................................................................................................................... 88 COMPARATORS ............................................................................................................................ 88 RAM AND FLASH MEMORY .......................................................................................................... 89 FLASH MEMORY TIMING .............................................................................................................. 89 EEPROM INTERFACE.................................................................................................................... 89 Recommended External Components ........................................................................................................... 89 Packaging Information ................................................................................................................................... 90 Pinout (Top View) ............................................................................................................................ 91 Pin Descriptions............................................................................................................................... 92 I/O Equivalent Circuits: .................................................................................................................... 94 ORDERING INFORMATION ......................................................................................................................... 95 Figures Figure 1: IC Functional Block Diagram ............................................................................................................7 Figure 2: General Topology of a Chopped Amplifier ......................................................................................10 Figure 3: AFE Block Diagram ........................................................................................................................11 Figure 4: Samples in Multiplexer Cycle..........................................................................................................13 Figure 5: Accumulation Interval......................................................................................................................13 Figure 6: Memory Map...................................................................................................................................15 Figure 7: Interrupt Structure...........................................................................................................................35 Figure 8: DIO Ports Block Diagram................................................................................................................36 Figure 9: Oscillator Circuit..............................................................................................................................39 Figure 10: LCD Voltage Boost Circuitry .........................................................................................................40 Figure 11: Voltage Range for V1....................................................................................................................42 Figure 12: Voltage. Current, Momentary and Accumulated Energy ...............................................................46 Figure 13: Timing Relationship between ADC MUX, CE, and Serial Transfers .............................................47 Figure 14: RTM Output Format......................................................................................................................48 Figure 15: SSI Timing, (SSI_FPOL = SSI_RDYPOL = 0) ..............................................................................48 Figure 16: SSI Timing, 16-bit Field Example (External Device Delays SRDY)...............................................48 Figure 17: MPU/CE Data Flow.......................................................................................................................49 Figure 18: MPU/CE Communication (Functional) ..........................................................................................50 Figure 19: MPU/CE Communication (Processing Sequence) ........................................................................50 Figure 20: Timing Diagram for Voltages, Current and Operation Modes after Power-Up ..............................51 Figure 21: Chop Polarity w/ Automatic Chopping...........................................................................................53 Figure 22: Sequence with Alternate Multiplexer Cycles .................................................................................53 Figure 23: Sequence with Alternate Multiplexer Cycles and Controlled Chopping.........................................54 Figure 24: Wh Accuracy, 0.3A - 200A/240V ..................................................................................................74 Figure 25: VARh Accuracy for 0.3A to 200A/240V Performance ...................................................................74 Figure 26: 71M6511H Wh Accuracy over Current at Various Temperatures .................................................74 |
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