xr17v254 Exar Corporation, xr17v254 Datasheet - Page 66

• Manufacturer Part Number: xr17v254
• Description: 66mhz Pci Bus Quad Uart With Power Management Support
• Manufacturer: Exar Corporation

XR17V254
66MHZ PCI BUS QUAD UART WITH POWER MANAGEMENT SUPPORT
PACKAGE DIMENSIONS
N
OTE
: Note: The control dimension is the millimeter column
Seating Plane
109
144
A
SYMBOL
A
1
A1
A2
D1
A
B
C
D
α
108
e
L
1
A
2
144 LEAD LOW-PROFILE QUAD FLAT PACK
0.020 BSC
e
0.055
0.002
0.053
0.007
0.004
0.858
0.783
0.018
MIN
0°
(20 x 20 x 1.4 mm LQFP)
INCHES
B
0.063
0.006
0.057
0.011
0.008
0.874
0.791
0.030
D
MAX
D
1
66
7°
0.50 BSC
21.80
19.90
1.40
0.05
1.35
0.17
0.09
0.45
MIN
MILLIMETERS
0°
73
36
22.20
20.10
MAX
1.60
0.15
1.45
0.27
0.20
0.75
7°
72
37
L
D
C
1
D
α
REV. 1.0.0