19-5373; Rev 2; 2/12
71M6533/G/H and 71M6534/H
Energy Meter ICs
DATA SHEET
GENERAL DESCRIPTION
FEATURES
The Teridian™ 71M6533 and 71M6534 are third-generation
polyphase metering systems-on-chips (SoCs) with a 10MHz 8051-
compatible MPU core, low-power RTC, flash, and LCD driver. The
Single Converter Technology® with a 22-bit delta-sigma ADC, seven
analog inputs, digital temperature compensation, precision voltage
reference, and a 32-bit computation engine (CE) supports a wide
range of metering applications with very few external components.
•
•
•
Wh Accuracy < 0.1% Over 2000:1 Range
Exceeds IEC 62053/ANSI C12.20 Standards
Seven Sensor Inputs with Neutral Current
Measurement
•
Low-Jitter Wh and VARh Plus Two Additional
Pulse Test Outputs (4 Total, 10kHz max) with
Pulse Count
•
•
•
•
•
•
Four-Quadrant Metering
Phase Sequencing
The 71M6533 and 71M6534 add several new features to the
Teridian flagship 71M6513 polyphase meters, including an SPI
interface, advanced power management with < 1µA sleep current,
4KB shared RAM, and 128KB (71M6533/H, 71M6534), or 256KB
(71M6533G, 71M6534H) flash, which can be programmed in the
field with new code and/or data during meter operation. Higher
processing and sampling rates and larger memory offer a
powerful metering platform for commercial and industrial meters
with up to class 0.2 accuracy.
Line Frequency Count for RTC
Digital Temperature Compensation
Independent 32-Bit CE
46-64 Hz Line Frequency Range with Same
Calibration; Phase Compensation (± 7°)
Three Battery-Backup Modes with Wake-Up
on Timer or Pushbutton:
•
A complete array of ICE and development tools, programming
libraries and reference designs enable rapid development and
certification of meters that meet all ANSI and IEC electricity metering
standards worldwide.
Brownout Mode (82µA typ, 71M6533)
LCD Mode (21µA typ, DAC active)
Sleep Mode (0.7µA typ)
•
•
Energy Display During Mains Power Failure
CT/COIL
LIVE
39mW (typ) Consumption at 3.3V, MPU
Clock Frequency 614kHz
NEUT
LOAD
LIVE
LIVE
•
•
8-Bit MPU (80515), 10MHz (max), One
Clock Cycle per Instruction with Integrated
ICE for Debug
POWER SUPPLY
NEUTRAL
LCD Driver with Four Common Segment
Drivers:
Up to 228 Pixels (71M6533) or 300 Pixels
(71M6534)
CONVERTER
V3P3A V3P3SYS
GNDA GNDD
IA
PWR MODE
CONTROL
VA
•
•
Four Dedicated + 35 (71M6533) or 48
(71M6534) Multifunction DIO Pins
TERIDIAN
71M6533
71M6534
WAKE-up
IB
REGULATOR
VB
IC
RTC for TOU Functions with Clock-Rate Adjust
Register
VBAT
V2P5
BATTERY
VC
ID
TEMP
SENSOR
LCD DRIVER
DIO ,PULSE
•
•
•
•
Hardware Watchdog Timer, Power-Fail Monitor
I2C/MICROWIRE® EEPROM Interface
VREF
RAM
COM0..3
SEG
SERIAL PORTS
8888.8888
High-Speed Slave SPI Interface to Data RAM
COMPUTE
ENGINE
TX
RX
SEG/DIO
AMR
IR
Two UARTs for IR and AMR, IR Driver with
Modulation
PULSES,
DIO
FLASH
DIO
RX
MOD
•
Flash Memory with Security and In-System
Program Update:
128KB (71M6533/H, 71M6534)
256KB (71M6533G, 71M6534H)
TX
I2C or µWire
EEPROM
COMPARATOR
MPU
RTC
TIMERS
OSC/PLL
POWER
FAULT
V1
XIN
32kHz
V2*
ICE
XOUT
•
•
•
4KB RAM
* 71M6534 only
9/24/2008
Industrial Temperature Range
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.
100-Pin (71M6533/G/H) or 120-Pin
(71M6534/H) Lead(Pb)-Free LQFP Package
Rev 2
1