maximum operating (supply) voltage

The maximum supply voltage at which a device is specified to operate in compliance with the applicable device specification.

NOTE 1 "Maximum" refers to the magnitude of supply voltage and can be either positive or negative.

NOTE 2 The maximum operating voltage is not the absolute maximum-rated voltage, i.e., the voltage beyond which permanent damage is likely.

References: 

JESD22-A108C, 6/05
JESD78A, 2/06
JESD89-2, 11/04
JESD89-3, 9/05