QFP: what it means.
Quad flat package is a family of surface-mount packages with leads arranged on four sides. The family name helps distinguish it from two-sided packages and no-lead variants. (Texas Instruments: packaging terminology)
The exact number, spacing and shape of the leads depend on the package option. Do not derive a board footprint from the acronym alone or infer a device’s function from its package. (Texas Instruments: packaging terminology)
Put the definition to work.
QFP and QFN sound similar but make their board connections differently. Always use the exact package designation and drawing rather than relying on a familiar-looking abbreviation.
Questions to ask next.
Use these questions as a reading checklist, not as a device-selection recommendation. Exact manufacturer documentation takes priority over a general definition.
- Lead count and pitch
- Body dimensions and orientation
- Package-specific land pattern
For the broader explanation, explore the complete integrated circuits guide. This page defines the term; the companion guide connects it to the rest of the system.
Common QFP questions.
What is the main naming difference between QFP and QFN?
QFP identifies the flat leaded family, while QFN identifies a quad flat no-lead family. Always confirm the detailed mechanical drawing and terminal layout. (Texas Instruments: packaging terminology)