nsbmc290 National Semiconductor Corporation, nsbmc290 Datasheet - Page 3

• Manufacturer Part Number: nsbmc290
• Description: Burst Mode Memory Controller
• Manufacturer: National Semiconductor Corporation

Pin Descriptions
Note In order for the switching characteristics of this device to be guaranteed it is necessary to connect all of the power pins (V
levels The use of low impedance wiring to the power pins is required In systems using the Am29000 with its attendant high switching rates multi-layer printed
circuit boards with buried power and ground planes are required
PGA Pin
M13
K11
N13
K13
H11
L12
J12
J13
J11
M3
M1
G2
G1
N1
K1
K2
H2
H1
F1
F3
F2
E1
E2
D1
D2
C1
E3
B1
C2
D3
A1
B2
A2
B3
C4
C3
J2
J1
L2
L3
L1
QFP Pin
132
131
129
130
128
126
125
124
123
122
127
121
120
118
119
112
110
111
113
115
11
21
12
20
10
53
54
55
56
59
60
61
62
65
6
5
7
8
9
3
2
Signal
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
AA0
AA1
AA2
AA3
AA4
AA5
AA6
AA7
AA8
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
PGA Pin
M10
M11
M12
G13
G12
D13
N12
N10
N11
C11
B11
A12
A11
F11
E13
E12
B13
B12
M9
M5
M4
M8
M6
C9
C7
N6
N8
N7
N2
B9
A9
B8
A7
B7
A5
B5
A4
B4
L8
L6
L4
QFP Pin
100
101
105
106
107
108
66
67
87
88
89
90
93
94
95
96
99
30
71
72
73
74
37
41
43
31
40
42
39
26
19
24
35
32
44
45
36
29
22
77
80
3
DREQT0
DREQT1
DBREQ
DBACK
CASA0
CASA1
CASA2
CASA3
CASB0
CASB1
CASB2
CASB3
DBLEA
DBLEB
DBTXA
DBTXB
IBREQ
MWEA
MWEB
Signal
IBACK
IREQT
DRDY
DREQ
IBTXA
IBTXB
AA10
AB10
IRDY
IREQ
BINV
AA9
AB0
AB1
AB2
AB3
AB4
AB5
AB6
AB7
AB8
AB9
PGA Pin
G11
A13
C12
D11
B10
D12
E11
H12
A10
C10
C13
H13
K12
L10
F13
L13
F12
L11
M2
G3
M7
K3
N3
N9
N5
N4
A6
A3
A8
B6
H3
C5
C6
C8
L5
L7
J3
L9
CC
QFP Pin
V
SS
102
103
109
104
114
15
13
23
28
38
27
25
68
78
79
82
34
46
14
47
57
63
69
75
81
91
97
33
48
58
64
70
76
86
92
98
1
4
) to the appropriate power
Reserved
Reserved
Reserved
Reserved
RSTOUT
SYSCLK
RESET
Signal
R W
RASA
RASB
OPT0
OPT1
OPT2
PDA
PEN
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
PIA
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS