71M6521BE
Energy Meter IC
DATA SHEET
JANUARY 2008
FEATURES
GENERAL DESCRIPTION
• < 0.4% Wh accuracy over 2000:1 current range
and over temperature
• Exceeds IEC62053 / ANSI C12.20 standards
• Voltage reference < 40ppm/°C
• Four sensor inputs—VDD referenced
• Low jitter Wh test output (10kHz maximum)
• Pulse count for Wh pulse output
• Tamper detection: Neutral current with CT or
shunt
The TERIDIAN 71M6521BE is a highly integrated SOC with an MPU core,
FLASH and LCD driver. TERIDIAN’s patented Single Converter Technol-
ogy™ 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 further reduces system cost. The IC
supports 2-wire single-phase residential metering along with tamper-
detection mechanisms.
• Line frequency count for time keeping
• Digital temperature compensation
• Sag detection for phase A and B
• Independent 32-bit compute engine
• 46-64Hz line frequency range with same
calibration
Maximum design flexibility is provided by multiple UARTs, I2C, μWire, up to
14 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 AMR and
Prepay meters that comply with worldwide electricity metering standards.
• Phase compensation (±7°)
• Battery monitor
CT/SHUNT
A
• Three battery modes w/ wake-up on push-button
or timer:
LOAD
POWER SUPPLY
NEUT
LOAD
B
Brownout mode (48µA)
LCD mode (5.7µA)
Sleep mode (2.9µA)
CONVERTER
V3.3
SYS
V3.3A
GNDA GNDD
IA
• Energy display on main power failure
• Wake-up with push-button
• 22-bit delta-sigma ADC
PWR MODE
CONTROL
VA
IB
TERIDIAN
71M6521BE
WAKE-UP
VB
REGULATOR
VBAT
• 8-bit MPU (80515), 1 clock cycle per instruction
w/ integrated ICE for MPU debug
• Hardware watchdog timer, power fail monitor
• LCD driver (up to 140 pixels)
• Up to 14 general purpose I/O pins
• 32kHz time base
• 8KB FLASH with security
• 2KB MPU XRAM
• Two UARTs for IR and AMR
• Digital I/O pins compatible with 5V inputs
• 64-pin LQFP
V2.5
BATTERY
TEMP
SENSOR
VOLTAGE REF
DIO, PULSE
VREF
VBIAS
RAM
3.3V LCD
COM0..3
SERIAL PORTS
SEG0..18
SEG 24..31/
DIO 4..11
888888.88
FLASH
TX
RX
AMR
IR
SEG 34..37/
DIO 14..17
I2C or µWire
EEPROM
COMPUTE
ENGINE
RX/DIO1
TX/DIO2
SENSE
DRIVE/MOD
SEG 32,33,
38
COMPARATOR
MPU
POWER
FAULT
TEST PULSE
V1
TIMERS
OSC/PLL
XIN
V3P3D
GNDD
ICE_E
32 kHz
ICE
XOUT
11/14/2007
• Lead Free package
V1.0
© 2005-2008 TERIDIAN Semiconductor Corporation
Page: 1 of 97
5秒后页面跳转
MAX487芯片引脚图及功能、应用领域详解
IR2110驱动芯片引脚图及功能、电路图详解
74LS74是什么芯片 74LS74引脚图及功能表
CD4511芯片引脚图及功能、电路图解析
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
技术参数
数据手册
如果您发现信息不准确，
