74AC821SPC データシートの表示（PDF） - Fairchild Semiconductor
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74AC821SPC Datasheet PDF : 8 Pages
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AC Operating Requirements for AC
Symbol
Parameter
tS
Setup Time, HIGH or LOW
Dn to CP
tH
Hold Time, HIGH or LOW
Dn to CP
tW
CP Pulse Width
HIGH or LOW
Note 8: Voltage Range 3.3 is 3.3V ± 0.3V
Voltage Range 5.0 is 5.0V ± 0.5V
VCC
(V)
(Note 8)
3.3
5.0
3.3
5.0
3.3
5.0
TA = +25°C
TA = −40°C to +85°C
CL = 50 pF
CL = 50 pF
Typ
Guaranteed Minimum
−1.0
1.5
1.5
−1.0
1.5
1.5
−1.0
3.5
4.0
−1.0
3.5
4.0
3.5
5.0
5.5
2.5
4.0
4.0
AC Electrical Characteristics for ACT
Symbol
Parameter
fMAX
Maximum Clock
Frequency
tPLH
Propagation Delay
CP to On
tPHL
Propagation Delay
CP to On
tPZH
Output Enable Time
OE to On
tPZL
Output Enable Time
OE to On
tPHZ
Output Disable Time
OE to On
tPLZ
Output Disable Time
OE to On
Note 9: Voltage Range 5.0 is 5.0V ± 0.5V
VCC
(V)
(Note 9)
5.0
TA = +25°C
CL = 50 pF
Min
Typ
Max
120
150
5.0
2.0
6.0
9.5
5.0
2.5
6.0
9.5
5.0
2.5
7.0
10.5
5.0
2.5
7.0
10.5
5.0
1.5
7.5
12.0
5.0
1.5
7.0
10.5
TA = −40°C to +85°C
CL = 50 pF
Min
Max
110
1.5
10.5
2.0
10.5
2.0
11.5
2.0
12.0
1.0
13.0
1.0
11.5
AC Operating Requirements for ACT
Symbol
Parameter
tS
Setup Time, HIGH or LOW
Dn to CP
tH
Hold Time, HIGH or LOW
Dn to CP
tW
CP Pulse Width
HIGH or LOW
Note 10: Voltage Range 5.0 is 5.0V ± 0.5V
VCC
(V)
(Note 10)
5.0
5.0
5.0
TA = +25°C
CL = 50 pF
Typ
TA = −40°C to +85°C
CL = 50 pF
Guaranteed Minimum
2.5
2.0
2.5
−0.5
2.0
2.5
3.0
4.5
5.5
Capacitance
Symbol
CIN
CPD
Parameter
Input Capacitance
Power Dissipation Capacitance
Typ
4.5
35.0
Units
pF
pF
VCC = OPEN
VCC = 5.0V
Conditions
Units
ns
ns
ns
Units
MHz
ns
ns
ns
ns
ns
ns
Units
ns
ns
ns
5
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