MC74AC161 Datasheet, PDF (5/12 Pages) ON Semiconductor – Synchronous Presettable Binary Counter

MC74AC161 MC74ACT161 MC74AC163 MC74ACT163
AC CHARACTERISTICS (For Figures and Waveforms — See Section 3)
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
fmax
Maximum Count
Frequency
3.3 70 111
60
MHz
3-3
5.0 110 167
95
tPLH
tPHL
tPLH
Propagation Delay
CP to Qn (PE Input HIGH or LOW)
Propagation Delay
CP to Qn (PE Input HIGH or LOW)
Propagation Delay
CP to TC
3.3 2.0 7.0 12.0 1.5 13.5
ns
3-6
5.0 1.5 5.0 9.0 1.0 9.5
3.3 1.5 7.0 12.0 1.5 13.0
ns
3-6
5.0 1.5 5.0 9.5 1.5 10.0
3.3 3.0 9.0 15.0 2.5 16.5
ns
3-6
5.0 2.0 6.0 10.5 1.5 11.5
tPHL
Propagation Delay
CP to TC
3.3 3.5 8.5 14.0 2.5 15.5
ns
3-6
5.0 2.0 6.5 11.0 2.0 11.5
tPLH
Propagation Delay
CET to TC
3.3 2.0 5.5 9.5 1.5 11.0
ns
3-6
5.0 1.5 3.5 6.5 1.0 7.5
tPHL
Propagation Delay
CET to TC
3.3 2.5 6.5 11.0 2.0 12.5
ns
3-6
5.0 2.0 5.0 8.5 1.5 9.5
tPHL
tPHL
Propagation Delay
MR to Qn
Propagation Delay
MR to TC
3.3 2.0 6.0 12.0 1.5 13.5
ns
3-6
5.0 1.5 5.5 9.5 1.5 10.0
3.3 3.5 10.0 15.0 3.0 17.5
ns
3-6
5.0 2.5 8.5 13.0 2.5 13.5
* 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)
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
fmax
Maximum Count
Frequency
3.3
70
95
60
MHz
3-3
5.0 110 140
95
tPLH
tPHL
tPLH
Propagation Delay
CP to Qn (PE Input HIGH or LOW)
Propagation Delay
CP to Qn (PE Input HIGH or LOW)
Propagation Delay
CP to TC
3.3 2.0 7.5 12.5 1.5 13.5
ns
3-6
5.0 1.5 5.5 9.0 1.0 9.5
3.3 1.5 8.5 12.0 1.5 13.0
ns
3-6
5.0 1.5 6.0 9.5 1.5 10.0
3.3 3.0 9.5 15.0 2.5 16.5
ns
3-6
5.0 2.0 7.0 10.5 1.5 11.5
tPHL
tPLH
Propagation Delay
CP to TC
Propagation Delay
CET to TC
3.3 3.5 11.0 14.0 2.5 15.5
ns
3-6
5.0 2.0 8.0 11.0 2.0 11.5
3.3 2.0 7.5 9.5 1.5 11.0
ns
3-6
5.0 1.5 5.5 6.5 1.0 7.5
tPHL
Propagation Delay
CET to TC
* Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
3.3 2.5 8.5 11.0 2.0 12.5
ns
3-6
5.0 2.0 6.0 8.5 1.5 9.5
FACT DATA
5-5