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What is the Programmable LVD option on new 3120 Neuron Chips?

April 26, 2017chips LVD Neuron option Programmable

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What is the Programmable LVD option on new 3120 Neuron Chips?

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The existing LVD on the Neuron Chips trip whenever the Vdd input is less than 3.8 ~ 4.5V. The programmable LVD feature allows the user to select a higher trip voltage, if necessary. One of the Vdd pins of the 3120 chips is reassigned as the LVD control pin (LVDin). The programmable LVD trips if the LVDin input is below 1.2 ± 0.2V or Vdd is below 3.8 ~ 4.5V. This behavior is backward compatible with earlier Neuron Chips; if the LVDin input is connected to Vdd, only the LVD of Vdd is operational. The LVDin is pin 2 for the SOP-32 package, and pin 41 for the QFP-44 package.