Chapter 9 package outline, Table 9.1 24 terminal qfn package parameters, Datasheet – SMSC FlexPWR LAN8720 User Manual
Page 76
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.
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.
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