6541
The 71M6541D/F are Teridian’s 4th-generation single-phase metering SOCs with a 5 MHz 8051-compatible MPU core, low-power RTC, Flash memory and LCD driver. Teridian’s patented Single-Converter Technology® with a 22-bit delta-sigma ADC, three or four analog inputs, digital temperature com-pensation, precision voltage reference and a 32-bit computation engine (CE) support a wide range of metering applications with very few external components. The 71M6541D/F support optional interfaces to the Teridian 71M6XXX series of Isolated Sensors, which offer BOM cost reduction, immunity to magnetic tamper and en-hanced reliability. Other features include an SPI interface, advanced power management, ultra-low power operation in active and battery modes, 3/5 KB shared RAM and 32/64 KB of Flash memory which may be programmed in the field with code and/or data during meter operation. High processing and sam-pling rates combined with differential inputs offer a powerful metering platform for residential meters with up to class 0.2 accuracy.
NDA REQUIRED
Features
< 0.5% Wh accuracy over industrial temperature and 2000:1 current range
Two current sensor inputs with differential mode selectable
SPI Interface w/flash program capability
32KB (6541D) or 64KB (6541F) FLASH with security
3KB (6541D) or 5KB (6541F) MPU XRAM
Up to 51 multi-function digital I/O pins
LCD driver (up to 210 pixels)
Low Power Consumption
64-pin LQFP package
Programming Tools:
Teridian TFP2 Flash Programmer
AMD51-ICE (In-Circuit Emulator) - Signum Systems
Third Party Programmer Supplier - BPM Micro - www.bpmmicro.com
Firmware Development Tools - Keil - www.keil.com
