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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