10/100 Mbps LAN Physical Layer Interface Datasheet

Datasheet 53

Networking Silicon — 82555

12.0 82555 Package Information

This section provides the physical packaging information for the 82555. The 82555 is an 100-pin

plastic Quad Flat Pack (QFP) device. Package attributes are provided in Table 7 and the dimensions

are shown in Figure 27.

Figure 27. Dimension Diagram for the 82555 QFP

Table 7. Dimensions for the 82555 QFP

Symbol Description Min Norm Max

N Lead Count - 100 -

A Overall Height - - 3.15

A1 Stand Off 0.05 - 0.40

b Lead Width 0.20 0.30 0.40

c Lead Thickness 0.10 0.15 0.20

D Terminal Dimension 17.5 17.9 18.3

D1 Package Body - 14.0 -

E Terminal Dimension 23.5 23.9 24.3

E1 Package Body - 20.0 -

e1 Lead Pitch 0.53 0.65 0.77

L1 Foot Length 0.60 0.80 1.00

Seating

Plane

Seating

Plane

See Detail A

Detail A

PC-3712