78M6612
Single-Phase, Dual-Outlet
Power and Energy Measurement IC
Simplifying System Integration
TM
DATA SHEET
June 2009
DESCRIPTION
The Teridian 78M6612 is a highly integrated,
single-phase, power and energy measurement and
monitoring SOC which includes a 32-bit compute engine
(CE), an MPU core, RTC, and Flash. The Teridian
patented Single
Converter Technology
®
with a 22-bit delta-sigma ADC, 4
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 Teridian’s
flagship utility metering IC’s it 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, 2 UARTs , I
2
C/Micro wire 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 pre-loaded 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
NEUT
CT
OUTLET
POWER SUPPLY
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 IEC62053 / ANSIC12.20 standards
•
Voltage reference < 40 ppm/°C
•
Four sensor inputs – VDD referenced
•
Low jitter Wh and VARh pulse test outputs (10 kHz
maximum)
•
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 w/
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-free packages
•
Complete Application Firmware available
CONVERTER
IA
VA
IB
VB
V3.3A
V3.3
SYS
GNDA GNDD
PWR MODE
CONTROL
WAKE-UP
REGULATOR
VBAT
V2.5
BATTERY
OPTIONAL
TERIDIAN
78M6612
VOLTAGE REF
VREF
VBIAS
SERIAL PORTS
TX0
RX0
RX1
TX1
COMPARATOR
V1
OSC/PLL
XIN
XOUT
TEMP
SENSOR
RAM
FLASH
COMPUTE
ENGINE
DIO, PULSE
COM0..3
SEG0..18
SEG 24..31/
DIO 4..11
SEG 34..37/
DIO 14..17
SEG 32,33,
38/ICE
2
OPTIONAL
I C or µWire
EEPROM
POWER
FAULT
32 kHz
MPU
RTC
TIMERS
ICE
ICE_E
V3P3D
GNDD
Rev. 1.2
© 2009 Teridian Semiconductor Corporation
1
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
