st16c554 Exar Corporation, st16c554 Datasheet - Page 36

• Manufacturer Part Number: st16c554
• Description: Quad Uart With 16-byte Fifos
• Manufacturer: Exar Corporation

ST16C554/554D
2.97V TO 5.5V QUAD UART WITH 16-BYTE FIFO
68 LEAD PLASTIC LEADED CHIP CARRIER (PLCC)
D
D
1
Note: The control dimension is the inch column
SYMBOL
A
A
B
D
D
D
H
H
A
B
C
D
R
e
1
2
1
1
2
3
1
2
2
D
D
1
D
1
3
0.165
0.090
0.020
0.013
0.026
0.008
0.985
0.950
0.890
0.042
0.042
0.025
MIN
68
0.050 BSC
0.800 typ.
INCHES
MAX
0.200
0.130
0.021
0.032
0.013
0.995
0.958
0.930
0.056
0.048
0.045
---.
36
D
3
45 ° x H
25.02
24.13
22.61
MIN
4.19
2.29
0.51
0.33
0.66
0.19
1.07
1.07
0.64
MILLIMETERS
2
20.32 typ.
1.27 BSC
45 ° x H
MAX
25.27
24.33
23.62
5.08
3.30
0.53
0.81
0.32
1.42
1.22
1.14
---
1
C
A
A
1
Seating Plane
R
A
2
B
B
e
1
D
2
REV. 4.0.1