SMSC LAN8720i User Manual
Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
Datasheet
Revision 1.0 (05-28-09)
76
SMSC LAN8720/LAN8720i
DATASHEET
Chapter 9 Package Outline
Notes:
1. Controlling Unit: millimeter.
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).
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.
4. Coplanarity zone applies to exposed pad and terminals.
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