DS_21x3_001 78Q2123/78Q2133 Data Sheet
Rev. 1.6 37
6.1 Recommended PCB Land Pattern Dimensions
32 Pin - QFN
e
Ad G
x
x
e
y
y
A
d
G
6.1.1 Recommended PCB Land Pattern Dimensions
Symbol Description Min Typ Max
e Lead pitch 0.50 mm
x 0.28 mm 0.28 mm
y 0.69 mm
d See Note 1 3.00 mm
A 3.78 mm
G 3.93 mm
Note 1: Do not place unmasked vias in region denoted by dimensiond”.
Note 2: Soldering of bottom internal pad not required for proper operation
of either commercial or industrial temperature rated versions.
7 Ordering Information
Part Description Order Number Package Mark
78Q2123, Lead-Free
32-QFN, Commercial Temp
78Q2123/F
78Q2123
xxxxxP7F
78Q2123, Lead-Free
32-QFN, Commercial Temp, Tape and Reel
78Q2123R/F
78Q2123
xxxxxP7F
78Q2133, Lead-Free
32-QFN, Industrial Temp
78Q2133/F
78Q2133
xxxxxP7F
78Q2133, Lead-Free
32-QFN, Industrial Temp, Tape and Reel
78Q2133R/F
78Q2133
xxxxxP7F
78Q2123/78Q2133 Data Sheet DS_21x3_001
38 Rev. 1.6
Revision History
Rev. #
Date
Comments
1.0 9/15/2005 First publication.
1.6 4/16/2010 Removed the 32-pin TQFP option.
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78Q2123S/F

Mfr. #:
Manufacturer:
Maxim Integrated
Description:
Ethernet ICs 10/100 Base Tx Transcvr w/MDIX
Lifecycle:
New from this manufacturer.
Delivery:
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