MC74AC161, MC74ACT161, MC74AC163, MC74ACT163
http://onsemi.com
6
AC OPERATING REQUIREMENTS
Symbol
Parameter
VCC*
(V)
74AC161
Unit
Fig.
No.
TA = +25°C
CL = 50 pF
TA = 40°C
to +85°C
CL = 50 pF
Typ
Guaranteed Minimum
ts
Setup Time, HIGH or LOW
3.3
6.0
13.5
16.0
ns
39
Pn to CP
5.0
3.5
8.5
10.5
th
Hold Time, HIGH or LOW
3.3
7.0
1.0
0.5
ns
39
Pn to CP
5.0
4.0
0
ts
Setup Time, HIGH or LOW
3.3
6.5
11.5
14.0
ns
39
PE to CP
5.0
4.0
7.5
8.5
th
Hold Time, HIGH or LOW
3.3
6.0
0
ns
39
PE to CP
5.0
3.5
0.5
1.0
ts
Setup Time, HIGH or LOW
3.3
3.0
6.0
7.0
ns
39
CEP or CET to CP
5.0
2.0
4.5
5.0
th
Hold Time, HIGH or LOW
3.3
3.5
0
ns
39
CEP or CET to CP
5.0
2.0
0
0.5
tw
Clock Pulse Width (Load)
3.3
2.0
3.5
4.0
ns
36
HIGH or LOW
5.0
2.0
2.5
3.0
tw
Clock Pulse Width (Count)
3.3
2.0
4.0
4.5
ns
36
HIGH or LOW
5.0
2.0
3.0
3.5
tw
MR Pulse Width, LOW
3.3
3.0
5.5
7.5
ns
36
5.0
2.5
4.5
6.0
trec
Recovery TIme
3.3
2.0
0.5
0
ns
39
MR to CP
5.0
1.0
0
0.5
*Voltage Range 3.3 V is 3.3 V ±0.3 V.
*Voltage Range 5.0 V is 5.0 V ±0.5 V.