48TQFP SMSC | Alldatasheet
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Technical content
48 PIN TQFP/TQN PACKAGE OUTLINE
c D1/4 E1/4 e D b E GAUGE PLANE 0°-7° 0.25 SEATING PLANE L SEE DETAIL "A" ccc C C c A 3-D VIEW DETAIL "A" SIDE VIEW TOP VIEW Min Nominal Max Note Remark A 1.60 Overall Package Height 0.05 0.15 Standoff 1.35 1.40 1.45 Package Body Thickness D/E 8.80 9.00 9.20 X/Y Span D1/E1 6.80 7.00 7.20 X/Y Body Size L 0.45 0.60 0.75 Lead Foot Length
1.00 REF
b 0.17 0.22 0.27 2,4 Lead Width c 0.09 0.20 Lead Thickness e
0.50 BSC
0.08 Coplanarity Notes: 1. All dimensions are in millimeters. 2. True position spread tolerance of each lead is ± 0.04 mm at maximum material condition. Dimension "b" does not include dambar protrusion. 3. Dimensions "D1" and "E1" do not include mold protrusions. Maximum allowed protrusion is 0.25 mm per side. "D1" and "E1" are maximum plastic body size dimensions including mold mismatch. 4. Dimensions "b" and "c" apply to the flat section of the lead between 0.10 mm and 0.25 mm from the lead tip. 5. Details of pin 1 identifier are optional, but must be located within the zone indicated. 6. Provided for reference only - contact your SMSC Regional Sales Office for latest information. Rev. 8/23/05
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