PQFP
Encyclopedia

PQFP, or plastic quad flat pack, is a type of IC
Integrated circuit
An integrated circuit or monolithic integrated circuit is an electronic circuit manufactured by the patterned diffusion of trace elements into the surface of a thin substrate of semiconductor material...

 packaging. PQFP is a special case of QFP
QFP
A QFP or Quad Flat Package is a surface mount integrated circuit package with leads extending from each of the four sides. Socketing such packages is rare and hole mounting is not possible. Versions ranging from 32 to 304 pins with a pitch ranging from 0.4 to 1.0 mm are common...

, as is the thinner TQFP
TQFP
A thin quad flat pack is a type of surface-mounted package. TQFPs provide the same benefits of the metric QFP, but are thinner and have a standard lead-frame footprint ....

package.

PQFP packages can vary in thickness from 2.0 mm to 3.8 mm.
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