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XR16M654 Datasheet, PDF (51/58 Pages) Exar Corporation – 1.62V TO 3.63V QUAD UART WITH 64-BYTE FIFO
REV. 1.0.0
PACKAGE DIMENSIONS
XR16M654/654D
1.62V TO 3.63V QUAD UART WITH 64-BYTE FIFO
48 LEAD QUAD FLAT NO LEAD (7 x 7 x 0.9 mm, 0.50 mm pitch QFN)
Note: The actual center pad is
metallic and the size (D2) is
device-dependent with a typical
tolerance of 0.3mm. The lead
may be half-etched terminal.
Note: The control dimension is the millimeter column
INCHES
MILLIMETERS
SYMBOL MIN
MAX
MIN
MAX
A
0.031
0.039
0.80
1.00
A1
0.000
0.002
0.00
0.05
A3
0.006
0.010
0.15
0.25
D
0.270
0.281
6.85
7.15
D2
0.201
0.209
5.10
5.30
b
0.007
0.012
0.18
0.30
e
0.0197 BSC
0.50 BSC
L
0.012
0.020
0.30
0.50
k
0.008
-
0.20
-
51