Dictionary U

used gate (in a gate array)

A single gate equivalent that has been interconnected and is employed in the functioning of the circuit.

References:

JESD12-1B, 8/93
JESD99B, 5/07

useful life (of an repairable unit)

The time interval between the start of use of an unrepairable unit and its statistically expected failure in an application.

References:

JEP148, 4/04

user ID

A programmable space on some devices that allows users to store nonfunctional data of any sort. It is often used to track design revision numbers or other such identifying information.

References:

JESD32, 6/96

USRT

See "universal synchronous receiver transmitter".

References:

UV-EPROM

See "ultraviolet-erasable programmable read-only memory".

References:

UW

See "upper-byte write enable".

References:

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