78M6612 Datasheet, PDF (1/46 Pages) Teridian Semiconductor Corporation – Single-Phase, Dual-Outlet Power and Energy Measurement IC

19-5348; Rev 2; 1/12
78M6612
Single-Phase, Dual-Outlet
Power and Energy Measurement IC
DS_6612_001
DESCRIPTION
The Teridian™ 78M6612 is a highly integrated, single-phase,
power and energy measurement and monitoring system-on-
chip (SoC) that includes a 32-bit compute engine (CE), an
MPU core, RTC, and flash. Our Single Converter
Technology^® with a 22-bit delta-sigma ADC, four analog
inputs, digital temperature compensation, and precision
voltage reference supports a wide range of single-phase,
dual-outlet power measurement applications with very few
external components.
With measurement technology leveraged from Maxim’s flagship
utility metering ICs, the device offers features including 32 KB
of flash program memory, 2 KB shared RAM, three low-power
modes with internal timer or external event wake-up, two
UARTs, I²C/MICROWIRE® EEPROM I/F, and an in-system
programmable flash. Complete outlet measurement unit (OMU)
and AC power monitor (AC-PMON) firmware is available or can
be preloaded into the IC.
A complete array of ICE and development tools, programming
libraries and reference designs enable rapid development and
certification of power and energy measurement solutions that
meet the most demanding worldwide electricity metering
standards.
LIVE
CT
NEUT
OUTLET
POWER SUPPLY
POWER
FAULT
32 kHz
CONVERTER
IA
VA
IB
VB
VOLTAGE REF
VREF
VBIAS
SERIAL PORTS
TX0
RX0
RX1
TX1
COMPARATOR
V1
OSC/PLL
XIN
XOUT
V3.3A
V3.3
SYS
TERIDIAN
78M6612
GNDA GNDD
PWR MODE
CONTROL
WAKE-UP
REGULATOR
VBAT
V2.5
TEMP
SENSOR
DIO, PULSE
RAM
FLASH
COMPUTE
ENGINE
COM0..3
SEG0..18
SEG 24..31/
DIO 4..11
SEG 34..37/
DIO 14..17
MPU
RTC
TIMERS
SEG 32,33,
38/ICE
ICE_E
ICE
OPTIONAL
BATTERY
OPTIONAL
I² C or µWire
EEPROM
V3P3D
GNDD
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.
DATA SHEET
FEATURES
• Measures Each Outlet of a Duplex Receptacle with
a Single IC
• Provides Complete Energy Measurement and
Communication Protocol Capability in a Single IC
• Intelligent Switch Control Capability
• < 0.5% Wh Accuracy Over 2000:1 Current Range
and Over Temperature
• Exceeds IEC 62053/ANSIC12.20 Standards
• Voltage Reference < 40 ppm/°C
• Four Sensor Inputs – VDD Referenced
• Low Jitter Wh and VARh Pulse Test Outputs
(10 kHz max)
• Pulse Count for Pulse Outputs
• Line Frequency Count for RTC
• Digital Temperature Compensation
• Sag Detection for Phase A and B
• Independent 32-Bit Compute Engine
• 46-64 Hz Line Frequency Range with Same Calibration
• Phase Compensation (±7°)
• Battery Backup for RTC and Battery Monitor
• Three Battery Modes with Wake-Up Timer:
Brownout Mode (48 µA)
LCD Mode (5.7 µA)
Sleep Mode (2.9 µA)
• Energy Display on Main Power Failure
• Wake-Up Timer
• 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
• 32 kHz Time Base
• 32 KB Flash with Security
• 2 KB MPU XRAM
• Two UARTs
• Digital I/O Pins Compatible with 5 V Inputs
• 64-Pin LQFP or 68-Pin QFN Package
• RoHS-Compliant (6/6) Lead(Pb)-Free Packages
• Complete Application Firmware Available
Rev 2
1