xr16v554 Exar Corporation, xr16v554 Datasheet - Page 39

• Manufacturer Part Number: xr16v554
• Description: 2.25v To 3.6v Quad Uart With 16-byte Fifo
• Manufacturer: Exar Corporation

REV. 1.0.2
PACKAGE DIMENSIONS
48 LEAD QUAD FLAT NO LEAD (7 x 7 x 0.9 mm, 0.50 mm pitch QFN)
Note: The control dimension is the millimeter column
SYMBOL
D2
A1
A3
D
A
b
e
L
k
0.031
0.000
0.006
0.270
0.201
0.007
0.012
0.008
MIN
0.0197 BSC
INCHES
0.039
0.002
0.010
0.281
0.209
0.012
0.020
MAX
39
-
2.25V TO 3.6V QUAD UART WITH 16-BYTE FIFO
0.80
0.00
0.15
6.85
5.10
0.18
0.30
0.20
MIN
MILLIMETERS
0.50 BSC
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.
MAX
1.00
0.05
0.25
7.15
5.30
0.30
0.50
-
XR16V554/554D