71M6521BE
Energy Meter IC
DATA SHEET
JANUARY 2008
CE TRANSFER VARIABLES ..........................................................................................................79
Other CE Parameters......................................................................................................................80
ELECTRICAL SPECIFICATIONS................................................................................................................................83
ABSOLUTE MAXIMUM RATINGS ................................................................................................................83
RECOMMENDED EXTERNAL COMPONENTS ...........................................................................................84
RECOMMENDED OPERATING CONDITIONS ............................................................................................84
PERFORMANCE SPECIFICATIONS............................................................................................................85
INPUT LOGIC LEVELS...................................................................................................................85
OUTPUT LOGIC LEVELS...............................................................................................................85
POWER-FAULT COMPARATOR....................................................................................................85
BATTERY MONITOR......................................................................................................................85
SUPPLY CURRENT........................................................................................................................86
V3P3D SWITCH..............................................................................................................................86
2.5V VOLTAGE REGULATOR........................................................................................................86
LOW POWER VOLTAGE REGULATOR.........................................................................................87
CRYSTAL OSCILLATOR ................................................................................................................87
VREF, VBIAS ..................................................................................................................................87
ADC CONVERTER, V3P3A REFERENCED...................................................................................88
OPTICAL INTERFACE....................................................................................................................88
TEMPERATURE SENSOR .............................................................................................................89
LSB values do not include the 9-bit left shift at CE input. ................................................................89
LCD DRIVERS ................................................................................................................................88
TIMING SPECIFICATIONS ...........................................................................................................................90
RAM AND FLASH MEMORY ..........................................................................................................90
FLASH MEMORY TIMING ..............................................................................................................90
EEPROM INTERFACE....................................................................................................................90
RESET ............................................................................................................................................90
TYPICAL PERFORMANCE DATA ..................................................................................................91
PACKAGE OUTLINE (LQFP 64) ...................................................................................................................92
PINOUT (LQFP-64) .......................................................................................................................................93
PIN DESCRIPTIONS.....................................................................................................................................94
Power/Ground Pins:.........................................................................................................................94
Analog Pins: ....................................................................................................................................94
Digital Pins:......................................................................................................................................95
I/O Equivalent Circuits:....................................................................................................................96
ORDERING INFORMATION .........................................................................................................................97
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