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54ACT161L View Datasheet(PDF) - National ->Texas Instruments

Part NameDescriptionManufacturer
54ACT161L Synchronous Presettable Binary Counter National-Semiconductor
National ->Texas Instruments National-Semiconductor
54ACT161L Datasheet PDF : 13 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
AC Electrical Characteristics
Symbol
Parameter
fmax
Maximum Count
Frequency
tPLH
Propagation Delay CP to Qn
(PE Input HIGH or LOW)
tPHL
Propagation Delay CP to Qn
(PE Input HIGH or LOW)
tPLH
Propagation Delay
CP to TC
tPHL
Propagation Delay
CP to TC
tPLH
Propagation Delay
CET to TC
tPHL
Propagation Delay
CET to TC
tPHL
Propagation Delay
MR to Qn
tPHL
Propagation Delay
MR to TC
Note 8: Voltage Range 3.3 is 3.3V ±0.3V
Range 5.0 is 5.0V ±0.5V
VCC
(V)
(Note 8)
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
54AC
TA = −55˚C
to +125˚C
CL = 50 pF
Min
Max
55
80
1.0
14.0
1.0
10.0
1.0
14.0
1.0
10.0
3.0
18.0
3.0
13.0
1.0
17.5
1.0
13.0
1.0
13.0
1.0
8.5
1.0
13.5
1.0
10.5
1.0
14.5
1.0
10.5
1.0
18.5
1.0
14.0
AC Operating Requirements
Symbol
Parameter
ts
Setup Time, HIGH or LOW
Pn to CP
th
Hold Time, HIGH or LOW
Pn to CP
ts
Setup Time, HIGH or LOW
PE to CP
th
Hold Time, HIGH or LOW
PE to CP
ts
Setup Time, HIGH or LOW
CEP or CET to CP
th
Hold Time, HIGH or LOW
CEP or CET to CP
tw
Clock Pulse Width
(Load) HIGH or LOW
tw
Clock Pulse Width
(Count) HIGH or LOW
tw
MR Pulse Width,
LOW
VCC
(V)
(Note 9)
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
7
54AC
TA = −55˚C
to +125˚C
CL = 50 pF
Guaranteed Minimum
16.0
10.5
0.5
1.5
15.0
10.5
−1.0
0.0
7.5
5.5
2.0
2.0
5.0
5.0
5.0
5.0
5.0
5.0
Fig.
Units
No.
MHz
ns
ns
ns
ns
ns
ns
ns
ns
Fig.
Units
No.
ns
ns
ns
ns
ns
ns
ns
ns
ns
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