74F189 データシートの表示（PDF） - Fairchild Semiconductor
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74F189 Datasheet PDF : 7 Pages
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AC Electrical Characteristics
Symbol
Parameter
tPLH
Access Time, HIGH or LOW
tPHL
An to On
tPZH
Access Time, HIGH or LOW
tPZL
CS to On
tPHZ
Disable Time, HIGH or LOW
tPLZ
CS to On
tPZH
Write Recovery Time,
tPZL
HIGH or LOW WE to On
tPHZ
Disable Time, HIGH or LOW
tPLZ
WE to On
TA = +25°C
VCC = +5.0V
CL = 50 pF
Min
Typ
Max
10.0
18.5
26.0
8.0
13.5
19.0
3.5
6.0
8.5
5.0
9.0
13.0
2.0
4.0
6.0
3.0
5.5
8.0
6.5
15.0
28.0
6.5
11.0
15.5
4.0
7.0
10.0
5.0
9.0
13.0
AC Operating Requirements
TA = −55°C to +125°C
VCC = +5.0V
CL = 50 pF
Min
Max
9.0
32.0
8.0
23.0
3.5
10.5
5.0
15.0
2.0
8.0
2.5
10.0
6.5
37.5
6.5
17.5
3.5
12.0
5.0
15.0
TA = 0°C to +70°C
VCC = +5.0V
CL = 50 pF
Min
Max
10.0
27.0
8.0
20.0
3.5
9.5
5.0
14.0
2.0
7.0
3.0
9.0
6.5
29.0
6.5
16.5
4.0
11.0
5.0
14.0
Units
ns
ns
ns
ns
ns
Symbol
Parameter
tS(H)
tS(L)
tH(H)
tH(L)
tS(H)
tS(L)
tH(H)
tH(L)
tS(L)
tH(L)
tW(L)
Setup Time, HIGH or LOW
An to WE
Hold Time, HIGH or LOW
An to WE
Setup Time, HIGH or LOW
Dn to WE
Hold Time, HIGH or LOW
Dn to WE
Setup Time, LOW
CS to WE
Hold Time, LOW
CS to WE
WE Pulse Width, LOW
TA = +25°C
VCC = +5.0V
Min
Max
0
0
2.0
2.0
10.0
10.0
0
0
0
TA = −55°C to +125°C
VCC = +5.0V
Min
Max
0
0
2.0
2.0
11.0
11.0
2.0
2.0
0
TA = 0°C to +70°C
VCC = +5.0V
Min
Max
0
0
2.0
2.0
10.0
10.0
0
0
0
6.0
7.5
6.0
Units
ns
ns
ns
6.0
15.0
6.0
ns
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