Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support

Datasheet

Chapter 9 Package Outline

Figure 9.1 LAN8720/LAN8720i-EZK 24-QFN Package Outline, 4 x 4 x 0.9 mm Body (Lead-Free)

 

 

Table 9.1 24 Terminal QFN Package Parameters

 

 

 

 

 

 

MIN

NOMINAL

MAX

REMARKS

 

 

 

 

 

A

0.70

~

1.00

Overall Package Height

A1

0

0.02

0.05

Standoff

A2

~

~

0.90

Mold Thickness

D

3.85

4.0

4.15

X Overall Size

D1

3.55

~

3.95

X Mold Cap Size

D2

2.40

2.50

2.60

X exposed Pad Size

E

3.85

4.0

4.15

Y Overall Size

E1

3.55

~

3.95

Y Mold Cap Size

E2

2.40

2.50

2.60

Y exposed Pad Size

L

0.30

~

0.50

Terminal Length

e

 

0.50 BSC

 

Terminal Pitch

b

0.18

0.25

0.30

Terminal Width

ccc

~

~

0.08

Coplanarity

Notes:

1.Controlling Unit: millimeter.

2.Dimension b applies to plated terminals and is measured between 0.15mm and 0.30mm from the terminal tip. Tolerance on the true position of the leads is ± 0.05 mm at maximum material conditions (MMC).

3.Details of terminal #1 identifier are optional but must be located within the zone indicated.

4.Coplanarity zone applies to exposed pad and terminals.

Revision 1.0 (05-28-09)

76

SMSC LAN8720/LAN8720i

 

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