RCV56HCF PCI/CardBus Modem Designer’s Guide

4.4 PACKAGE DIMENSIONS

The package dimensions are shown in Figure 4-1 (144-pin TQFP) and Figure 4-2 (176-pin TQFP) .

D

D1

D2

PIN 1

REF

D D1 D2

e

b

D1

A

A2

 

 

 

c

 

A1

L

 

 

 

 

L1

DETAIL A

D1

DETAIL A

 

Millimeters

Inches*

Dim.

Min.

Max.

Min.

Max.

A

1.6 MAX

0.0630 MAX

A1

0.05

0.15

0.0020

0.0059

A2

1.4 REF

0.0551 REF

D

21.75

22.25

0.8563

0.8760

D1

20.0 REF

0.7874 REF

D2

17.5 REF

0.6890 REF

L

0.5

0.75

0.0197

0.0295

L1

1.0 REF

0.0394 REF

e

0.50 BSC

0.0197 BSC

b

0.17

0.27

0.0067

0.0106

c

0.11

0.17

0.0043

0.0067

Coplanarity

0.08 MAX

0.0031 MAX

 

 

 

 

 

Ref: 144-PIN TQFP (GP00-D252)

*Metric values (millimeters) should be used for PCB layout. English values (inches) are converted from metric values and may include round-off errors.

PD-TQFP-144 (040395)

Figure 4-1. Package Dimensions - 144-Pin TQFP

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Hayes Microcomputer Products RCV56HCF manual Package Dimensions 144-Pin Tqfp