74ACT2708CW 查看數據表（PDF） - Fairchild Semiconductor
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74ACT2708CW Datasheet PDF : 13 Pages
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AC Electrical Characteristics (Continued)
Symbol
Parameter
tW
HF Pulse Width, tX3
tW
IR Pulse Width, tIP
tW
HF Pulse Width, t3F
tPLH
Fall-Through Times, tFT
SO to IR
tPZL
Output Enable
OE to On
tPLZ
Output Disable
OE to On
tPZH
Output Enable
OE to On
tPHZ
Output Disable
OE to On
fSI
Maximum SI
Clock Frequency
fSO
Maximum SO
Clock Frequency
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
5.0
5.0
5.0
AC Operating Requirements
Min
14.5
16.5
17.5
6.0
TA = +25°C
CL = 50 pF
Typ
20.5
28.0
30.0
15.0
Max
30.5
43.0
46.5
23.5
2.0
6.5
11.0
1.5
5.0
8.5
2.0
7.0
12.0
1.5
7.0
12.0
55
85
42
60
TA = −40°C to +85°C
CL = 50 pF
Min
Max
14.5
36.5
16.5
51.5
17.5
56.0
2.5
28.0
1.5
12.0
1.5
9.5
1.5
13.0
1.5
13.0
45
35
Symbol
Parameter
tW(H)
tW(L)
SI Pulse Width, tSIH
SI Pulse Width, tSIL
VCC
(V)
(Note 6)
5.0
5.0
TA = +25°C
TA = −40°C to +85°C
CL = 50 pF
CL = 50 pF
Typ
Guaranteed Minimum
3.5
6.5
7.5
6.0
10.0
12.0
Units
ns
ns
ns
ns
ns
ns
ns
ns
MHz
MHz
Units
ns
ns
tS
Setup Time, HIGH or
LOW, Dn to SI
tH
Hold Time, HIGH or
LOW, Dn to SI
tW
MR Pulse Width, tMRW
trec
Recovery Time, tMRSIH
MR to SI
tW(H)
SO Pulse Width, tSOH
tW(L)
SO Pulse Width, tSOL
Note 6: Voltage Range 5.0 is 5.0V ± 0.5V
Capacitance
Symbol
CIN
CPD
Parameter
Input Capacitance
Power Dissipation Capacitance
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5.0
1.0
3.5
5.0
1.5
3.5
5.0
13.0
20.0
5.0
4.5
7.5
5.0
7.5
6.5
5.0
9.0
14.0
Typ
Units
4.5
pF
20.0
pF
12
4.5
ns
4.5
ns
24.5
ns
8.5
ns
8.0
ns
17.0
ns
Conditions
VCC = OPEN
VCC = 5.0V
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