71M6511 Datasheet, PDF (1/95 Pages) Teridian Semiconductor Corporation – Single-Phase Energy Meter IC

71M6511/71M6511H
Single-Phase Energy Meter IC
DATA SHEET
AUGUST 2007
GENERAL DESCRIPTION
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.
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.
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.
CT/SHUNT
LIVE
NEUT
LOAD
POWER SUPPLY
V or I
AMR
IR
POWER
FAULT
32 kHz
CONVERTER
IA
VA
IB
VOLTAGE REF
VREF
VBIAS
SERIAL PORTS
TX
RX
SENSE RX
DRIVE _TX
COMPARATOR
V1
OSC/PLL
XIN
XOUT
V3.3A V3.3D GNDA GNDD
5V BOOST
TERIDIAN
VDRV
71M6511 REGULATOR
TEMP
SENSOR
RAM
FLASH
VBAT
V2.5
LCD DRIVER
DIO, PULSE
VLCD
COM0..3
SEG0..19
SEG 24..32
DIO 0..11
COMPUTE
ENGINE
SEG 32..41
DIO 12..21
MPU
RTC
TIMERS
ICE
BATTERY
3V/5V LCD
88.88.8888
EEPROM
TEST PULSES
7/20/2007
FEATURES
Wh accuracy over temperature and
2000:1 range
< 0.1% -- 71M6511H,
<0.5% -- 71M6511
Exceeds IEC62053 / ANSIC12.20.
Voltage reference
< 10ppm/°C -- 71M6511H,
< 50ppm/°C -- 71M6511
Three sensor inputs - VDD
referenced
Low jitter Wh/VARh pulse outputs
Pulse count for pulse outputs
Four-quadrant metering
Voltage/current angle
Line frequency count for RTC
Digital temperature compensation
Sag detection
Independent 32-bit compute engine
40-70Hz line frequency range with
same calibration
Phase compensation (±7°)
Battery Backup for RAM and RTC
22mW @3.3V, 7.2µW back up
Flash memory option with security
22-bit delta-sigma ADC
8-bit MPU (80515) - 1 clock cycle per
instruction
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
Two UARTs for IR and AMR
64-lead LQFP package
Page: 1 of 95
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