Rainbow Electronics AT40K40LV - Manual (Page 63)

63
AT40K/AT40KLV Series FPGA
0896C–FPGA–04/02
208Q1 – TQFP
2325 Orchard Parkway
San Jose, CA 95131
TITLE DRAWING NO.
R
REV.
208Q1 A
11/30/01
L1
A2
A1 A1
b
D1
D
E1
E
e
Side View
Bottom View
Top View
COMMON DIMENSIONS
(Unit of Measure = mm)
SYMBOL MIN NOM MAX NOTE
208Q1, 208-lead (28 x 28 mm Body, 2.6 Form Opt.),
Plastic Quad Flat Pack (PQFP)
A1 0.25 0.50
A2 3.20 3.40 3.60
D 30.60 BSC
D1 28.00 BSC 2, 3
E 30.60 BSC
E1 28.00 BSC 2, 3
e 0.50 BSC
b 0.17 0.27 4
L1 1.30 REF
Notes: 1. This drawing is for general information only; refer to JEDEC Drawing MO-153, Variation AA, for proper dimensions, tolerances, datums, etc.
2. The top package body size may be smaller than the bottom package size by as much as 0.15 mm.
3. Dimensions D1 and E1 do not include mold protrusions. Allowable protrusion is 0.25 mm per side. D1 and E1 are maximum plastic
body size dimensions including mold mismatch.
4. Dimension b does not include Dambar protrusion. Allowable Dambar protrusion shall not cause the lead width to exceed the maximum b
dimension by more than 0.08 mm. Dambar cannot be located on the lower radius or the foot. Minimum space between protrusion
and an adjacent lead is 0.07 mm.