ANSI/EIA 540ABAA:1991
Detail Specification for Chip Carrier Sockets for Plastic Quad Flat Pack 0.635-mm (0.25-in) Lead Spacing (Gullwing)

Standard No.

ANSI/EIA 540ABAA:1991

Release Date

1991

Published By

American National Standards Institute （ANSI)

Scope

Provides all the information required for the identification and quality assessment of the chip carrier sockets for plastic quad flat packages (PQFP) with lead spacing on 0.635 mm (0.025 in) centers and "Gullwing" shaped leads.