Interfacing to the RX Pin of the Teridian 6511, 6513 and 6515
Abstract:Due to its unique circuitry, the RX input functions differently than the other digital inputs on the Teridian 71M6511, 71M6511H, 71M6513, and 71M6515H family of single- and 3-phase energy-metering ICs. This application note explains what unique considerations apply when interfacing signals that exceed the 0 to 3.6V range to the RX pin. The article also describes the pin summary and considerations when connecting 5V-based circuitry to the RX pin.
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