Electrical characteristics

RHFLVDS2281

10/17

DocID027588 Rev 1

Cold sparing

The RHFLVDS2281 features a cold spare input and output buffer. In high reliability

applications, cold sparing enables a redundant device to be tied to the data bus with its

the I/Os to the power supplies. Cold sparing also allows redundant devices to be kept

powered off so that they can be switched on only when required. This has no impact on the

application. Cold sparing is achieved by implementing a high impedance between the I/Os

Fail-safe

In many applications, inputs need a fail-safe function to avoid an uncertain output state

when the inputs are not connected properly. In case of an LVDS input short circuit or floating

inputs, the LVDS outputs remain in stable logic-high state.