74ACT843 Просмотр технического описания (PDF) - Fairchild Semiconductor
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74ACT843 Datasheet PDF : 6 Pages
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AC Electrical Characteristics
Symbol
Parameter
tPLH
Propagation Delay
Dn to On
tPHL
Propagation Delay
Dn to On
tPLH
Propagation Delay
LE to On
tPHL
Propagation Delay
LE to On
tPLH
Propagation Delay
PRE to On
tPHL
Propagation Delay
CLR 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
tPHL
Propagation Delay
PRE to On
tPLH
Propagation Delay
CLR to On
Note 4: Voltage Range 5.0 is 5.0V ± 0.5V
VCC
(V)
(Note 4)
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
TA = +25°C
CL = 50 pF
Min
Typ
Max
2.5
5.5
9.5
2.5
5.5
9.5
2.5
5.5
9.0
2.5
5.5
9.0
2.5
6.5
14.0
2.5
7.5
15.5
2.5
5.5
9.5
2.5
5.5
9.5
2.5
6.0
10.5
2.5
6.0
10.5
2.5
6.0
10.5
2.5
5.5
9.5
TA = −40°C to +85°C
CL = 50 pF
Min
Max
2.0
10.0
2.0
10.0
2.0
10.0
2.0
10.0
2.0
16.0
2.0
17.5
2.0
10.5
2.0
10.5
2.0
11.0
2.0
11.0
2.0
11.0
2.0
10.5
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
AC Operating Requirements
Symbol
Parameter
tS
Setup Time, HIGH or LOW
Dn to LE
tH
Hold Time, HIGH or LOW
Dn to LE
tW
LE Pulse Width, HIGH
tW
PRE Pulse Width, LOW
tW
CLR Pulse Width, LOW
trec
PRE Recovery Time
trec
CLR Recovery Time
Note 5: Voltage Range 5.0 is 5.0V ± 0.5V
VCC
(V)
(Note 5)
5.0
5.0
5.0
5.0
5.0
5.0
5.0
TA = +25°C
CL = 50 pF
Typ
TA = −40°C to +85°C
CL = 50 pF
Guaranteed Minimum
−0.5
0.5
1.0
0.5
2.0
2.0
2.0
3.5
3.5
5.0
8.5
10.0
5.5
9.5
11.0
0.5
2.0
2.0
−0.5
1.0
1.0
Units
ns
ns
ns
ns
ns
ns
ns
Capacitance
Symbol
CIN
CPD
Parameter
Input Capacitance
Power Dissipation Capacitance
Typ
Units
4.5
pF
44
pF
Conditions
VCC = OPEN
VCC = 5.0V
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