Integrated Silicon Solution, Inc. — 1-800-379-4774
PACKAGING INFORMATION
ISSI
®
PK13197LQ Rev. D 05/08/03
TQFP (Thin Quad Flat Pack Package)
Package Code: TQ
Thin Quad Flat Pack (TQ)
Millimeters Inches Millimeters Inches
Symbol Min Max Min Max Min Max Min Max
Ref. Std.
No. Leads (N) 100 128
A — 1.60 — 0.063 — 1.60 — 0.063
A1 0.05 0.15 0.002 0.006 0.05 0.15 0.002 0.006
A2 1.35 1.45 0.053 0.057 1.35 1.45 0.053 0.057
b 0.22 0.38 0.009 0.015 0.17 0.27 0.007 0.011
D 21.90 22.10 0.862 0.870 21.80 22.20 0.858 0.874
D1 19.90 20.10 0.783 0.791 19.90 20.10 0.783 0.791
E 15.90 16.10 0.626 0.634 15.80 16.20 0.622 0.638
E1 13.90 14.10 0.547 0.555 13.90 14.10 0.547 0.555
e 0.65 BSC 0.026 BSC 0.50 BSC 0.020 BSC
L 0.45 0.75 0.018 0.030 0.45 0.75 0.018 0.030
L1 1.00 REF. 0.039 REF. 1.00 REF. 0.039 REF.
C0
o
7
o
0
o
7
o
0
o
7
o
0
o
7
o
Notes:
1. All dimensioning and
tolerancing conforms to
ANSI Y14.5M-1982.
2. Dimensions D1 and E1 do
not include mold protrusions.
Allowable protrusion is 0.25
mm per side. D1 and E1 do
include mold mismatch and
are determined at datum
plane -H-.
3. Controlling dimension:
millimeters.
D
D1
E
E1
1
N
A2
A
A1
e
b
SEATING
PLANE
C
L1
L
