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

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