71m6521be Maxim Integrated Products, Inc., 71m6521be Datasheet - Page 4

• Manufacturer Part Number: 71m6521be
• Description: Energy Meter Ic
• Manufacturer: Maxim Integrated Products, Inc.

ELECTRICAL SPECIFICATIONS ................................................................................................................................83
Page: 4 of 97
ABSOLUTE MAXIMUM RATINGS ................................................................................................................83
RECOMMENDED EXTERNAL COMPONENTS ...........................................................................................84
RECOMMENDED OPERATING CONDITIONS ............................................................................................84
PERFORMANCE SPECIFICATIONS ............................................................................................................85
TIMING SPECIFICATIONS ...........................................................................................................................90
PACKAGE OUTLINE (LQFP 64) ...................................................................................................................92
PINOUT (LQFP-64) .......................................................................................................................................93
PIN DESCRIPTIONS .....................................................................................................................................94
ORDERING INFORMATION .........................................................................................................................97
CE TRANSFER VARIABLES ..........................................................................................................79
Other CE Parameters ......................................................................................................................80
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
RAM AND FLASH MEMORY ..........................................................................................................90
FLASH MEMORY TIMING ..............................................................................................................90
EEPROM INTERFACE....................................................................................................................90
RESET ............................................................................................................................................90
TYPICAL PERFORMANCE DATA ..................................................................................................91
Power/Ground Pins:.........................................................................................................................94
Analog Pins: ....................................................................................................................................94
Digital Pins:......................................................................................................................................95
I/O Equivalent Circuits: ....................................................................................................................96
© 2005-2008 TERIDIAN Semiconductor Corporation
Energy Meter IC
71M6521BE
DATA SHEET
JANUARY 2008
V1.0