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19-5370; Rev 3; 7/12
71M6521DE/DH/FE
Energy Meter ICs
DATA SHEET
GENERAL DESCRIPTION
The Teridian? 71M6521DE/DH/FE energy meter ICs are highly integrated
systems-on-a-chip (SoCs) with an MPU core, RTC, flash, and LCD driver.
The Single Converter Technology? with a 22-bit delta-sigma ADC, four
analog inputs, digital temperature compensation, precision voltage
reference, battery voltage monitor, and 32-bit computation engine (CE)
supports a wide range of residential metering applications with very few
low-cost external components. A 32kHz crystal time base for the entire
system and internal battery-backup support for RAM and RTC further
reduce system cost. The ICs support 2-wire, 3-wire, and 4-wire single-
phase and dual-phase residential metering along with tamper-detection
mechanisms.
Maximum design flexibility is provided by multiple UARTs, I 2 C,
MICROWIRE?, up to 18 DIO pins, and in-system programmable flash
memory, which can be updated with data or application code in operation.
A complete array of ICE and development tools, programming libraries, and
reference designs enable rapid development and certification of TOU,
AMR, and prepay meters that comply with worldwide electricity metering
standards.
FEATURES
? Up to 0.1% Wh Accuracy Over 2000:1 Current
Range
? Exceeds IEC 62053/ANSI C 12.20 Standards
? Voltage Reference < 40 ppm/°C (< 20ppm/°C for
71M6521DH)
? Four Sensor Inputs—V DD Referenced
? Low-Jitter Wh and VARh Pulse Test Outputs
(10kHz max)
? Pulse Count for Pulse Outputs
? Four-Quadrant Metering
? Tamper Detection
Neutral Current with CT or Shunt
? Line Frequency Count for RTC
? Digital Temperature Compensation
? Sag Detection for Phase A and B
? Independent 32-Bit Compute Engine
? 46-64Hz Line Frequency Range with Same
Calibration
? Phase Compensation ( ± 7 ° )
A
CT/SHUNT
? Battery backup for RTC and battery monitor
NEUT
B
LOAD
LOAD
POWER SUPPLY
? Three Battery Modes with Wake-Up on Pushbutton
or Timer:
Brownout Mode (48μA)
LCD Mode (5.7μA)
V3.3A
AMR
IR
POWER
FAULT
32 kHz
RX/DIO1
TX/DIO2
CONVERTER
IA
VA
IB
VB
VOLTAGE REF
VREF
VBIAS
SERIAL PORTS
TX
RX
SENSE
DRIVE/MOD
COMPARATOR
V1
OSC/PLL
XIN
XOUT
V3.3
SYS
TERIDIAN
71M6521
TEMP
SENSOR
RAM
FLASH
COMPUTE
ENGINE
MPU
RTC
TIMERS
ICE
GNDA GNDD
PWR MODE
CONTROL
WAKE-UP
REGULATOR
VBAT
V2.5
DIO, PULSE
COM0..3
SEG0..18
SEG 24..31/
DIO 4..11
SEG 34..37/
DIO 14..17
SEG 32,33,
38/ICE
ICE_E
07/25/2007
BATTERY
3.3V LCD
88.88.8888
IIC or uWire
EEPROM
TEST PULSES
V3P3D
GNDD
Sleep Mode (2.9μA)
? Energy Display on Main Power Failure
? Wake-Up with Pushbutton
? 22-Bit Delta-Sigma ADC
? 8-Bit MPU (80515), 1 Clock Cycle per Instruction
with Integrated ICE for MPU Debug
? RTC with Temperature Compensation
? Auto-Calibration
? Hardware Watchdog Timer, Power-Fail Monitor
? LCD Driver (Up to 152 Pixels)
? Up to 18 General-Purpose I/O Pins
? 32kHz Time Base
? 16KB (6521DE/DH) or 32KB (6521FE) Flash with
Security
? 2KB MPU XRAM
? Two UARTs for IR and AMR
? Digital I/O Pins Compatible with 5V Inputs
Teridian is a trademark and Single Converter Technology is a registered
trademark of Maxim Integrated Products Inc.
MICROWIRE is a registered trademark of National Semiconductor Corp.
Rev 3
? 64-Pin LQFP or 68-Pin QFN Package
? Lead(Pb)-Free Packages
Page: 1 of 107
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相关代理商/技术参数
71M6521FE-IGT 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Residential Energy Meter IC
71M6521FE-IGT/F 功能描述:计量片上系统 - SoC Residential Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel
71M6521FE-IGT/F1 功能描述:计量片上系统 - SoC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel
71M6521FE-IGTR 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Residential Energy Meter IC
71M6521FE-IGTR/F 功能描述:计量片上系统 - SoC Residential Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel
71M6521FE-IGTR/F1 功能描述:计量片上系统 - SoC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel
71M6521FE-IM 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Residential Energy Meter IC
71M6521FE-IM/F 功能描述:计量片上系统 - SoC Residential Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel