71M6521DE Datasheet, PDF (4/101 Pages) Teridian Semiconductor Corporation – Energy Meter IC

71M6521DE/71M6521FE
Energy Meter IC
DATASHEET
JANUARY 2008
CE Calculations ...............................................................................................................................80
CE STATUS ....................................................................................................................................80
CE TRANSFER VARIABLES ..........................................................................................................82
ELECTRICAL SPECIFICATIONS ................................................................................................................................86
ABSOLUTE MAXIMUM RATINGS ................................................................................................................86
RECOMMENDED EXTERNAL COMPONENTS ...........................................................................................87
RECOMMENDED OPERATING CONDITIONS ............................................................................................87
PERFORMANCE SPECIFICATIONS ............................................................................................................88
INPUT LOGIC LEVELS ...................................................................................................................88
OUTPUT LOGIC LEVELS ...............................................................................................................88
POWER-FAULT COMPARATOR....................................................................................................88
BATTERY MONITOR ......................................................................................................................88
SUPPLY CURRENT ........................................................................................................................89
V3P3D SWITCH ..............................................................................................................................89
2.5V VOLTAGE REGULATOR ........................................................................................................89
LOW POWER VOLTAGE REGULATOR.........................................................................................89
CRYSTAL OSCILLATOR ................................................................................................................90
VREF, VBIAS ..................................................................................................................................90
LCD DRIVERS ................................................................................................................................90
ADC CONVERTER, V3P3A REFERENCED...................................................................................91
OPTICAL INTERFACE....................................................................................................................91
TEMPERATURE SENSOR .............................................................................................................91
TIMING SPECIFICATIONS ...........................................................................................................................92
FLASH MEMORY TIMING ..............................................................................................................92
EEPROM INTERFACE....................................................................................................................92
RESET and V1 ................................................................................................................................92
RTC .................................................................................................................................................92
TYPICAL PERFORMANCE DATA ..................................................................................................93
PACKAGE OUTLINE (LQFP 64) ...................................................................................................................94
PACKAGE OUTLINE (QFN 68) .....................................................................................................................95
PINOUT (LQFP-64) .......................................................................................................................................96
PINOUT (QFN 68) .........................................................................................................................................96
Recommended PCB Land Pattern for the QFN-68 Package .........................................................................97
PIN DESCRIPTIONS .....................................................................................................................................98
Power/Ground Pins:.........................................................................................................................98
Analog Pins: ....................................................................................................................................98
Digital Pins:......................................................................................................................................99
I/O Equivalent Circuits: .................................................................................................................. 100
ORDERING INFORMATION ....................................................................................................................... 101
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