71m6521fe Maxim Integrated Products, Inc., 71m6521fe Datasheet - Page 97

• Manufacturer Part Number: 71m6521fe
• Description: Energy Meter Ic
• Manufacturer: Maxim Integrated Products, Inc.

Note 1: Do not place unmasked vias in region denoted by dimension “d”.
Note 2: Soldering of bottom internal pad is not required for proper operation.
Note 3: The ‘y’ dimension has been elongated to allow for hand soldering and reworking. Production assembly may allow this
v1.0
dimension to be reduced as long as the ‘G’ dimension is maintained.
Recommended PCB Land Pattern for the QFN-68 Package
Symbol
G
A
e
x
y
d
Recommended PCB Land Pattern Dimensions
© 2005-2008 TERIDIAN Semiconductor Corporation
Description
Lead pitch
Pad width
Pad length, see note 3
See note 1
71M6521DE/71M6521FE
Dimension
0.23mm
6.63mm
Typical
0.4mm
0.8mm
6.3mm
7.2mm
Energy Meter IC
DATASHEET
JANUARY 2008
Page: 97 of 101