The LP239 is obsolete and is no longer supplied.
LP239, LP339, LP2901 LOWPOWER QUAD DIFFERENTIAL COMPARATORS
SLCS004B - OCTOBER 1987 - REVISED SEPTEMBER 2004
D Wide Supply-Voltage Range . . . 3
Original
Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.