71M6511/71M6511H
Single-Phase Energy Meter IC
DATA SHEET
AUGUST 2007
GENERAL DESCRIPTION
FEATURES
ꢀ Wh accuracy over temperature and
The TERIDIAN 71M6511 is a highly integrated SOC with an MPU core,
RTC, FLASH and LCD driver. TERIDIAN’s patented Single Converter
Technology with a 22-bit delta-sigma ADC, 3 analog inputs, digital
temperature compensation, precision voltage reference and 32-bit
computation engine (CE) supports a wide range of single-phase 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.
2000:1 range
< 0.1% -- 71M6511H,
<0.5% -- 71M6511
ꢀ Exceeds IEC62053 / ANSIC12.20.
ꢀ Voltage reference
< 10ppm/°C -- 71M6511H,
< 50ppm/°C -- 71M6511
Maximum design flexibility is supported with multiple UARTs, I2C, a power
fail comparator, a 5V LCD charge pump, up to 12 DIO pins and an in-
system programmable FLASH. The device is offered in high (0.1%) and
standard (0.5%) accuracy versions for multifunction residential/commercial
meter applications requiring multiple voltage/current inputs and complex
LCD or DIO configurations.
ꢀ Three sensor inputs - VDD
referenced
ꢀ Low jitter Wh/VARh pulse outputs
ꢀ Pulse count for pulse outputs
ꢀ Four-quadrant metering
A complete array of ICE and development tools, programming libraries and
reference designs enable rapid development and certification of meters that
meet most demanding worldwide electricity metering standards.
ꢀ Voltage/current angle
ꢀ Line frequency count for RTC
ꢀ Digital temperature compensation
ꢀ Sag detection
CT/SHUNT
LIVE
POWER SUPPLY
LOAD
NEUT
ꢀ Independent 32-bit compute engine
ꢀ 40-70Hz line frequency range with
CONVERTER
IA
same calibration
V3.3A V3.3D GNDA GNDD
5V BOOST
ꢀ Phase compensation (±7°)
VA
VDRV
TERIDIAN
IB
V or I
ꢀ Battery Backup for RAM and RTC
ꢀ 22mW @3.3V, 7.2µW back up
ꢀ Flash memory option with security
ꢀ 22-bit delta-sigma ADC
71M6511
REGULATOR
BATTERY
VBAT
V2.5
TEMP
LCDDRIVER
DIO, PULSE
VOLTAGE REF
VREF
VBIAS
SENSOR
VLCD
RAM
3V/5V LCD
COM0..3
SERIAL PORTS
SEG0..19
SEG 24..32
DIO 0..11
88.88.8888
ꢀ 8-bit MPU (80515) - 1 clock cycle per
FLASH
TX
RX
AMR
instruction
COMPUTE
ENGINE
SEG 32..41
DIO 12..21
EEPROM
ꢀ LCD driver (≤128 pixels)
ꢀ High speed SSI serial output
ꢀ RTC for time-of-use functions
ꢀ Hardware watchdog timer
ꢀ Up to 12 general purpose I/O pins
ꢀ 64KB Flash, 7KB RAM
SENSE
DRIVE
RX
TX
IR
COMPARATOR
TEST PULSES
MPU
RTC
TIMERS
POWER
FAULT
V1
OSC/PLL
XIN
32 kHz
ICE
XOUT
7/20/2007
ꢀ Two UARTs for IR and AMR
ꢀ 64-lead LQFP package
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© 2005-2007 TERIDIAN Semiconductor Corporation
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