40-70Hz line frequency range
Sag detection
CT Phase compensation (±7°)
Battery backup for RAM and RTC
22mW @3.3V, 7.2μW battery backup
Flash memory option with security
8-bit MPU (80515), 1 clock cycle per
instruction
Integrated ICE for MPU debug
High speed SSI serial output
RTC for time-of-use functions
Two event counter/timers
Watchdog timer, power fail monitor
LCD driver (up to 144 pixels)
Up to 16 general-purpose I/O pins
32kHz time base for RTC, CE, and MPU
64kB FLASH, 7kB total RAM
Two UARTs for IR and AMR
68-pin QFN package
71M6512 / 71M6512H Block Diagram
A
NEUT
B
CT/SHUNT
LOAD
LOAD
POWER SUPPLY
CONVERTER
IA
VA
IB
VB
V3.3A V3.3D
GNDA GNDD
REGULATOR
VBAT
V2.5
5V BOOST
VLCD
DIO, PULSE, SSI
VDRV
COM0..3
SEG 3..7/SSI
SEG 0..2,
SEG 8..19
SEG 24..32/
DIO 4..12
SEG 34..40/
DIO 14..20
+ -
BATTERY
TERIDIAN
71M6512
VOLTAGE REF
TEMP
SENSOR
RAM
FLASH/ROM
COMPUTE
ENGINE
MPU
RTC
TIMERS
ICE
VREF
VBIAS
SERIAL PORTS
AMR
IR
POWER
FAULT
32 kHz
RX/DIO1
TX/DIO2
TX
RX
SENSE
DRIVE/MOD
COMPARATOR
V1
XIN
XOUT
OSC/PLL
3.3V/5V
LCD
88.88.8888
IIC EEPROM
TEST PULSES
Ordering Information
PART DESCRIPTION
ORDERING NUMBER
PACKAGE MARKING
71M6512
68-pin MLF, lead free, 0.5% accuracy
71M6512H
68-pin MLF, lead free, 0.1% accuracy
71M6512-IM/F
71M6512H-IM/F
71M6512-IM
71M6512H-IM
For immediate technical information and the name of a local representative or distributor,
visit www.teridian.com,
send an e-mail to support@teridian.com or call (714) 508-8800.
No responsibility is assumed by Teridian Semiconductor Corporation for use of this product nor for any infringements of patents and trade-
marks or other rights of third parties resulting from its use. No license is granted under any patents, patent rights or trademarks of Teridian
Semiconductor Corporation, and the company reserves the right to make changes in specifications at any time without notice. Accordingly,
the reader is cautioned to verify that the data sheet is current before placing orders.
© 2007 Teridian Semiconductor Corporation
6/07 - rev 1.0
6440 Oak Canyon, Irvine, CA 92618-5201
714-508-8800 (Tel)
714-508-8878 (Fax)
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
