XR88C681_06 Datasheet, PDF (97/101 Pages) Exar Corporation – CMOS Dual Channel UART (DUART)

XR88C681
D D₁
Rev. 2.11
44 LEAD PLASTIC LEADED CHIP CARRIER
(PLCC)
Rev. 1.00
D
D1
2 1 44
45° x H2
C
45° x H1
Seating Plane
A₂
B₁
D₃
B _D2
e
R
D₃
A₁
A
INCHES
MILLIMETERS
SYMBOL
MIN
MAX
MIN
MAX
A
0.165 0.180
4.19
4.57
A₁
0.090 0.120
2.29
3.05
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
0.685 0.695
17.40
17.65
D₁
0.650 0.656
16.51
16.66
D₂
0.590 0.630
14.99
16.00
D₃
0.500 typ.
12.70 typ.
e
0.050 BSC
1.27 BSC
H1
0.042 0.056
1.07
1.42
H2
0.042 0.048
1.07
1.22
R
0.025 0.045
0.64
1.14
Note: The control dimension is the inch column
97