LSI53C825AJ LSI, LSI53C825AJ Datasheet - Page 72

• Manufacturer Part Number: LSI53C825AJ
• Manufacturer: LSI

Specifications of LSI53C825AJ

• Lead Free Status / RoHS Status: Not Compliant

Figure 3.1
DEVSEL/
3-2
FRAME/
C_BE3/
C_BE2/
C_BE1/
C_BE0/
PERR/
STOP/
IDSEL
TRDY/
IRDY/
AD23
AD22
AD21
AD20
AD19
AD18
AD17
AD16
AD15
AD14
AD13
AD12
AD11
AD10
V
V
V
PAR/
AD9
AD8
AD7
V
V
V
V
V
V
V
V
DD-I
DD-I
DD-I
SS
SS
SS
SS
SS
SS
SS
SS
Note: The decoupling capacitor arrangement shown above is recommended to maximize
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
the benefits of the internal split ground system. Capacitor values between 0.01 and
0.1 F should provide adequate noise isolation. Because of the number of high
current drivers on the LSI53C825A, a multilayer PC board with power and ground
planes is required.
LSI53C825A Pin Diagram
Signal Descriptions
SCSI I/O Processor
Quad Flat Pack
(Top View)
160-pin
120
119
118
117
116
115
114
113
112
111
110
109
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
SDIR7
SDIRP0
V
SD12/
SD13/
SD14/
V
SD15/
SDP1/
SD0/
SD1/
V
SD2/
SD3/
SD4/
SD5/
V
SD6/
SD7/
SDP0/
SATN/
V
SBSY/
SACK/
SRST/
SMSG/
SSEL/
V
SC_D/
SREQ/
SI_O/
SD8/
V
SD9/
SD10/
SD11/
V
SDIR8
SDIR9
SDIR10
DD
SS-S
SS-S
SS-S
SS-S
SS-S
SS-S
DD