71M6521FE-IGT/F Maxim Integrated Products, 71M6521FE-IGT/F Datasheet - Page 2

• Manufacturer Part Number: 71M6521FE-IGT/F
• Description: IC ENERGY METER 32K FLASH 64LQFP
• Manufacturer: Maxim Integrated Products

Specifications of 71M6521FE-IGT/F

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table of Contents
GENERAL DESCRIPTION ........................................................................................................................ 1
FEATURES ................................................................................................................................................ 1
HARDWARE DESCRIPTION ..................................................................................................................... 10
Page: 2 of 107
Hardware Overview ..................................................................................................................... 10
Analog Front End (AFE) ............................................................................................................... 10
Digital Computation Engine (CE) ................................................................................................. 13
Description ................................................................................................................................... 14
On-Chip Resources ..................................................................................................................... 38
Input Multiplexer ............................................................................................................ 10
A/D Converter (ADC) ..................................................................................................... 11
FIR Filter ........................................................................................................................ 11
Voltage References ....................................................................................................... 11
Temperature Sensor ...................................................................................................... 12
Battery Monitor .............................................................................................................. 13
Functional Description ................................................................................................... 13
Meter Equations ............................................................................................................ 14
Real-Time Monitor ......................................................................................................... 15
Pulse Generator ............................................................................................................ 15
CE Functional Overview ................................................................................................ 15
80515 MPU Core ........................................................................................................... 17
Memory Organization .................................................................................................... 17
Special Function Registers (SFRs) ................................................................................ 19
Special Function Registers (Generic 80515 SFRs) ....................................................... 20
Special Function Registers Specific to the 71M6521DE/DH/FE .................................... 22
Instruction Set ................................................................................................................ 23
UART ............................................................................................................................. 23
Timers and Counters ..................................................................................................... 25
WD Timer (Software Watchdog Timer) .......................................................................... 28
Interrupts ....................................................................................................................... 30
Oscillator ....................................................................................................................... 38
PLL and Internal Clocks ................................................................................................ 38
Real-Time Clock (RTC) ................................................................................................. 38
Temperature Sensor ...................................................................................................... 38
Physical Memory ........................................................................................................... 39
Optical Interface ............................................................................................................ 40
Digital I/O ....................................................................................................................... 40
LCD Drivers ................................................................................................................... 42
Battery Monitor .............................................................................................................. 42
EEPROM Interface ........................................................................................................ 43
71M6521DE/DH/FE Data Sheet
Rev 2