HOLTEK QFP Series Recommended Footprints User Guide

QFP Series Recommended Footprints
User Guide
Recommended Footprints for QFP Series

QFP Series Recommended Footprints

Note that the footprint information provided here is for consultation purpose only. For the most current package drawings, please see the Holter packaging information located at http://www.holtek.com.tw

Footprints for QFP

Unit: mm| D| W| e|

x

|

y

---|---|---|---|---|---
Min| Type| Max| Min| Type| Max
44 (10×10)| 12.3 BSC| 12.3 BSC| 0.80 BSC| —| —| 0.50| —| 2.25| —
52 (10×10)| 12.3 BSC| 12.3 BSC| 0.65 BSC| —| —| 0.45| —| 2.25| —
52 (14×14)| 16.3 BSC| 16.3 BSC| 1.00 BSC| —| —| 0.55| —| 2.25| —
64 (14×14)| 16.3 BSC| 16.3 BSC| 0.80 BSC| —| —| 0.50| —| 2.25| —
208 (28×28)| 30.0 BSC| 30.0 BSC| 0.50 BSC| —| —| 0.30| —| 1.65| —

Unit: mm| D| W| e|

x

|

y

---|---|---|---|---|---
Min| Type| Max| Min| Type| Max
64 (14×20)| 17.7 BSC| 23.7 BSC| 1.00 BSC| —| —| 0.55| —| 3.05| —
80 (14×20)| 17.0 BSC| 23.0 BSC| 0.80 BSC| —| —| 0.50| —| 2.25| —
100 (14×20)| 17.6 BSC| 23.6 BSC| 0.65 BSC| —| —| 0.45| —| 2.85| —
128 (14×20)| 16.4 BSC| 22.4 BSC| 0.50 BSC| —| —| 0.30| —| 2.05| —

Footprints for LQFP/TQFP

Footprints for LQFP/TQFP(Exposed Pad)

LQFP
48 (7×7)| 8.4 BSC| 8.4 BSC| 0.5 BSC| —| —| 0.30| —| 1.65| —
128 (14×14)| 15.4 BSC| 15.4 BSC| 0.4 BSC| —| —| 0.25| —| 1.65| —
256 (28×28)| 29.4 BSC| 29.4 BSC| 0.4 BSC| —| —| 0.25| —| 1.65| —
TQFP
48 (7×7)| 8.4 BSC| 8.4 BSC| 0.5 BSC| —| —| 0.30| —| 1.65| —
64 (7×7)| 8.4 BSC| 8.4 BSC| 0.4 BSC| —| —| 0.25| —| 1.65| —
100 (14×14)| 15.4 BSC| 15.4 BSC| 0.5 BSC| —| —| 0.30| —| 1.65| —

Unit: mm

| D1| W1
---|---|---
Min| Typ| Max| Min| Typ| Max
LQFP
48 (7×7)| 4.3| —| —| 4.3| —| —
128 (14×14)| 5.8| —| —| 5.8| —| —
256 (28×28)| 8.8| —| —| 8.8| —| —
TQFP
48 (7×7)| 2.0| —| —| 2.0| —| —
64 (7×7)| 2.0| —| —| 2.0| —| —
100 (14×14)| 2.0| —| —| 2.0| —| —

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