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DME1737-NR Datasheet(PDF) 5 Page - SMSC Corporation |
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DME1737-NR Datasheet(HTML) 5 Page - SMSC Corporation |
5 / 5 page SMSC DME1737 5 Rev. 05-21-04 PRODUCT PREVIEW Package Outline Figure 2 128 Pin QFP Package Outline, 14X20X2.7 Body, 3.2 mm Footprint Notes: 1. Controlling Unit: millimeter. 2. Controlling Unit: millimeter. 3. Tolerance on the position of the leads is ± 0.04 mm maximum. 4. Package body dimensions D1 and E1 do not include the mold protrusion. 5. Maximum mold protrusion is 0.25 mm. 6. Dimension for foot length L measured at the gauge plane 0.25 mm above the seating plane. 7. Details of pin 1 identifier are optional but must be located within the zone indicated. Table 1 128 Pin QFP Package Parameters MIN NOMINAL MAX REMARKS A ~ ~ 3.4 Overall Package Height A1 0.05 ~ 0.5 Standoff A2 2.55 ~ 3.05 Body Thickness D 23.00 23.20 23.40 X Span D1 19.90 20.00 20.10 X body Size E 17.00 17.20 17.40 Y Span E1 13.90 14.00 14.10 Y body Size H 0.09 ~ 0.20 Lead Frame Thickness L 0.73 0.88 1.03 Lead Foot Length L1 ~ 1.60 ~ Lead Length e 0.50 Basic Lead Pitch q0o ~7o Lead Foot Angle W 0.10 ~ 0.30 Lead Width R1 0.08 ~ ~ Lead Shoulder Radius R2 0.08 ~ 0.30 Lead Foot Radius ccc ~ ~ 0.08 Coplanarity |
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