XRK4991 Datasheet, PDF (11/12 Pages) Exar Corporation – 3.3V HIGH-SPEED (85 MHZ) PROGRAMMABLE SKEW CLOCK BUFFER

xr
REV. 1.0.1
XRK4991
3.3V HIGH-SPEED (85 MHZ) PROGRAMMABLE SKEW CLOCK BUFFER
PACKAGE DIMENSIONS
32 LEAD PLASTIC LEADED CHIP CARRIER
(PLCC)
Rev. 1.00
D
D1
2 1 32
45° x H2
30° x H1
A1
A2
Corner Chamfer
E3
E1 ^E
B1
B _D2
e
7°±2 deg typ.
C
R
D3
A
SEATING PLANE
INCHES
MILLIMETERS
SYMBOL MIN
MAX
MIN
MAX
A
0.120
0.140
3.05
3.56
A1
0.075
0.095
1.91
2.41
A2
0.020
---
0.51
---
B
0.013
0.021
0.33
0.53
B1
0.026
0.032
0.66
0.81
C
0.008
0.013
0.19
0.32
D
0.485
0.495
12.33
12.58
D1
0.448
0.454
11.39
11.54
D2
0.400
0.440
10.17
11.18
D3
0.300 typ.
7.62 typ.
E
0.585
0.595
14.87
15.11
E1
0.545
0.557
13.85
14.15
E2
0.500
0.540
12.71
13.72
E3
0.400 typ.
10.16 typ.
e
0.050 BSC
1.27 BSC
H1
0.023
0.029
0.58
0.74
H2
0.042
0.048
1.07
1.22
R
0.025
0.045
0.64
1.14
Note: The control dimension is in inches.
11