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MC74AC161_15 Datasheet, PDF (5/12 Pages) ON Semiconductor – Synchronous Presettable Binary Counter
MC74AC161, MC74ACT161, MC74AC163, MC74ACT163
AC CHARACTERISTICS (For Figures and Waveforms − See Section 3 of the ON Semiconductor FACT Data Book, DL138/D)
74AC161
74AC161
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = −40°C
to +85°C
CL = 50 pF
Unit
Fig.
No.
Min Typ Max Min Max
Maximum Count
fmax
Frequency
3.3 70 111
−
60
−
5.0 110 167 −
95
−
MHz 3−3
Propagation Delay
tPLH
CP to Qn (PE Input HIGH or LOW)
Propagation Delay
tPHL
CP to Qn (PE Input HIGH or LOW)
Propagation Delay
tPLH
CP to TC
3.3 2.0 7.0 12.0 1.5 13.5
5.0 1.5 5.0 9.0 1.0 9.5
ns
3−6
3.3 1.5 7.0 12.0 1.5 13.0
5.0 1.5 5.0 9.5 1.5 10.0
ns
3−6
3.3 3.0 9.0 15.0 2.5 16.5
5.0 2.0 6.0 10.5 1.5 11.5
ns
3−6
Propagation Delay
tPHL
CP to TC
3.3 3.5 8.5 14.0 2.5 15.5
5.0 2.0 6.5 11.0 2.0 11.5
ns
3−6
Propagation Delay
tPLH
CET to TC
3.3 2.0 5.5 9.5 1.5 11.0
5.0 1.5 3.5 6.5 1.0 7.5
ns
3−6
Propagation Delay
tPHL
CET to TC
3.3 2.5 6.5 11.0 2.0 12.5
5.0 2.0 5.0 8.5 1.5 9.5
ns
3−6
Propagation Delay
tPHL
MR to Qn
Propagation Delay
tPHL
MR to TC
3.3 2.0 6.0 12.0 1.5 13.5
5.0 1.5 5.5 9.5 1.5 10.0
ns
3−6
3.3 3.5 10.0 15.0 3.0 17.5
5.0 2.5 8.5 13.0 2.5 13.5
ns
3−6
*Voltage Range 3.3 V is 3.3 V ±0.3 V.
*Voltage Range 5.0 V is 5.0 V ±0.5 V.
AC CHARACTERISTICS (For Figures and Waveforms − See Section 3 of the ON Semiconductor FACT Data Book, DL138/D)
74AC163
74AC163
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = −40°C
to +85°C
CL = 50 pF
Unit
Fig.
No.
Min Typ Max Min Max
Maximum Count
fmax
Frequency
3.3 70 95
−
60
−
5.0 110 140 −
95
−
MHz 3−3
Propagation Delay
tPLH
CP to Qn (PE Input HIGH or LOW)
Propagation Delay
tPHL
CP to Qn (PE Input HIGH or LOW)
Propagation Delay
tPLH
CP to TC
3.3 2.0 7.5 12.5 1.5 13.5
5.0 1.5 5.5 9.0 1.0 9.5
ns
3−6
3.3 1.5 8.5 12.0 1.5 13.0
5.0 1.5 6.0 9.5 1.5 10.0
ns
3−6
3.3 3.0 9.5 15.0 2.5 16.5
5.0 2.0 7.0 10.5 1.5 11.5
ns
3−6
Propagation Delay
tPHL
CP to TC
3.3 3.5 11.0 14.0 2.5 15.5
5.0 2.0 8.0 11.0 2.0 11.5
ns
3−6
Propagation Delay
tPLH
CET to TC
3.3 2.0 7.5 9.5 1.5 11.0
5.0 1.5 5.5 6.5 1.0 7.5
ns
3−6
Propagation Delay
tPHL
CET to TC
3.3 2.5 8.5 11.0 2.0 12.5
5.0 2.0 6.0 8.5 1.5 9.5
ns
3−6
*Voltage Range 3.3 V is 3.3 V ±0.3 V.
*Voltage Range 5.0 V is 5.0 V ±0.5 V.
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