54F189 NSC [National Semiconductor], 54F189 Datasheet - Page 4

• Manufacturer Part Number: 54F189
• Description: 64-Bit Random Access Memory with TRI-STATEE Outputs
• Manufacturer: NSC [National Semiconductor]

Symbol
t
t
t
t
t
t
t
t
t
t
Symbol
t
t
t
t
t
t
t
t
t
t
t
PLH
PHL
PZH
PZL
PHZ
PLZ
PZH
PZL
PHZ
PLZ
AC Electrical Characteristics
AC Operating Requirements
s
s
h
h
s
s
h
h
s
h
w
T
(H)
(L)
(H)
(L)
(L)
(H)
(L)
(H)
(L)
(L)
(L)
A
e b
55 C to
Access Time HIGH or LOW
A
Access Time HIGH or LOW
CS to O
Disable Time HIGH or LOW
CS to O
Write Recovery Time
HIGH or LOW WE to O
Disable Time HIGH or LOW
WE to O
n
Setup Time HIGH or LOW
A
Hold Time HIGH or LOW
A
Setup Time HIGH or LOW
D
Hold Time HIGH or LOW
D
Setup Time LOW
CS to WE
Hold Time LOW
CS to WE
WE Pulse Width LOW
a
n
n
n
n
to O
to WE
to WE
125 C
to WE
to WE
n
n
n
n
Parameter
Parameter
n
10 0
Min
8 0
3 5
5 0
2 0
3 0
6 5
6 5
4 0
5 0
10 0
10 0
Min
2 0
2 0
6 0
6 0
V
T
0
0
0
0
0
CC
A
e a
V
T
e a
74F
C
CC
A
L
e a
e
e a
25 C
Typ
18 5
13 5
15 0
11 0
74F
6 0
9 0
4 0
5 5
7 0
9 0
5 0V
Max
50 pF
25 C
5 0V
4
Max
26 0
19 0
13 0
28 0
15 5
10 0
13 0
8 5
6 0
8 0
11 0
11 0
15 0
Min
2 0
2 0
2 0
2 0
7 5
T
0
0
0
A
V
54F
Min
9 0
8 0
3 5
5 0
2 0
2 5
6 5
6 5
3 5
5 0
CC
T
C
A
L
e
V
e
54F
CC
Mil
Max
50 pF
e
Max
23 0
15 0
10 0
17 5
15 0
32 0
10 5
37 5
12 0
8 0
Mil
T
10 0
10 0
Min
2 0
2 0
6 0
6 0
A
0
0
0
0
0
T
10 0
Min
8 0
3 5
5 0
2 0
3 0
6 5
6 5
4 0
5 0
A
V
C
CC
V
L
74F
CC
e
74F
e
50 pF
e
Com
Max
Com
Max
27 0
20 0
14 0
29 0
16 5
11 0
14 0
9 5
7 0
9 0
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns