Product Descriptions
The TERIDIAN 71M6511 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, 3 analog inputs, digital temperature compensation, precision voltage reference and 32-bit computation engine (CE) supports a wide range of single-phase 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.
Maximum design flexibility is supported with multiple UARTs, I2 C, a power fail comparator, a 5V LCD charge pump, up to 12 DIO pins and an insystem programmable FLASH. The device is offered in high (0.1%) and standard (0.5%) accuracy versions for multifunction residential/commercial meter applications requiring multiple voltage/current inputs and complex LCD or DIO configurations.
A complete array of ICE and development tools, programming libraries and reference designs enable rapid development and certification of meters that meet most demanding worldwide electricity metering standards.
Product Features
Wh accuracy over temperature and 2000:1 range
< 0.1 PERCENT -- 71M6511H,
<0.5 PERCENT -- 71M6511
Exceeds IEC62053 / ANSIC12.20.
Voltage reference
< 10ppm/°C -- 71M6511H,
< 50ppm/°C -- 71M6511
Three sensor inputs - VDD referenced
Low jitter Wh/VARh pulse outputs
Pulse count for pulse outputs
Four-quadrant metering
Voltage/current angle
Line frequency count for RTC
Digital temperature compensation
Sag detection
Independent 32-bit compute engine
40-70Hz line frequency range with same calibration
Phase compensation (±7°)
Battery Backup for RAM and RTC
22mW @3.3V, 7.2µW back up
Flash memory option with security
22-bit delta-sigma ADC
8-bit MPU (80515) - 1 clock cycle per instruction
LCD driver (≤128 pixels)
High speed SSI serial output
RTC for time-of-use functions
Hardware watchdog timer
Up to 12 general purpose I/O pins
64KB Flash, 7KB RAM
Two UARTs for IR and AMR
64-lead LQFP package
Product Photos
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