![](http://datasheet.mmic.net.cn/Exar-Corporation/XR17D158IV-F_datasheet_100070/XR17D158IV-F_2.png)
XR17D158
xr
UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
REV. 1.2.2
2
FIGURE 2. PIN OUT OF THE DEVICE
ORDERING INFORMATION
PART NUMBER
PACKAGE
OPERATING TEMPERATURE RANGE
DEVICE STATUS
XR17D158CV
144-Lead LQFP
0°C to +70°C
Active
XR17D158IV
144-Lead LQFP
-40°C to +85°C
Active
RX4
GN
D
MPIO5
GND
TMRCK
ENIR
XR17D158
108
107
106
105
104
103
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
MP
IO0
MP
IO1
VC
C
GN
D
CTS4
#
TX
5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
AD
24
C
BE3
ID
SEL
VI
O
GN
D
AD
23
AD
22
AD
21
AD
20
AD
19
AD
18
AD
17
AD
16
C
BE2
F
R
AME#
IR
D
Y
#
T
RDY
#
D
EVSEL
#
VI
O
ST
O
P
#
P
E
RR#
S
E
RR#
PAR
C
BE1
AD
15
AD
14
AD
13
AD
12
AD
11
TX7
RX6
CTS6#
DSR6#
CD6#
RI6#
RTS6#
DTR6#
TX6
GND
VCC
MPIO7
MPIO6
MPIO4
RX5
CTS5#
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
RX1
CTS1#
DSR1#
CD1#
RI1#
RTS1#
DTR1#
TX1
EECS
EEDI
EECK
EEDO
VCC
TEST#
XTAL1
XTAL2
128
127
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
111
110
109
31
32
33
34
AD
10
AD
9
AD
8
VI
O
35
36
GN
D
C
BE0
MP
IO2
78
77
76
75
74
73
DTR
5#
RTS5
#
RI5
#
CD
5#
MP
IO3
RI7#
DTR7#
AD7
AD6
AD5
AD4
AD3
AD2
AD1
AD0
VIO
RX7
CTS7#
DSR7#
CD7#
RTS7#
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
AD26
AD27
AD28
AD29
AD30
AD31
VIO
GND
CLK
RST#
144
143
142
141
140
139
138
137
136
135
134
133
132
131
130
129
TX
4
DTR
4#
RTS4
#
RI4
#
CD
4#
RX3
CTS3
#
TX
3
DTR
3#
RTS3
#
RI3
#
CD
3#
RX2
CTS2
#
TX
2
DTR
2#
RTS2
#
RI2
#
CD
2#
DSR
2#
DSR
3#
DSR
4#
DSR
5#
RX0
CTS0#
DSR0#
CD0#
RI0#
RTS0#
DTR0#
TX0
INTA#
AD25