Product Brief
71M6512
71M6512H
Teridian Semiconductor’s Energy Meter ICs
The TERIDIAN 71M6512 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,
four analog inputs, digital temperature compensation, precision voltage reference and 32-bit
computation engine supports a wide range of residential 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. The IC supports 2-
wire and 3-wire single-phase residential metering along with tamper-detection mechanisms.
Maximum design flexibility is supported with multiple UARTs, I
2
C, power fail comparator,
5V LCD charge pump, up to 16 DIO pins and in system programmable FLASH which can
be updated with data or application code in operation.
A complete array of ICE and development tools, programming libraries and reference
designs enable rapid development and certification of TOU, AMR and Prepay meters that
meet worldwide electricity metering standards.
Applications
Residential Meters
Features
Wh accuracy over temperature and 2000:1 range
< 0.1% -- 71M6512H version
< 0.5% -- 71M6512 version
Exceeds IEC62053 / ANSIC12.20
Voltage reference
< 10ppm/°C 71M6512H version
< 50ppm/°C 71M6512 version
Four sensor inputs – VDD referenced
Digital temperature compensation
22-bit delta-sigma ADC
Independent 32-bit compute engine
Low-jitter Wh and VARh pulse outputs
Pulse count for pulse outputs
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
