MC74AC161_15 Datasheet, PDF (6/12 Pages) ON Semiconductor – Synchronous Presettable Binary Counter

MC74AC161, MC74ACT161, MC74AC163, MC74ACT163
AC OPERATING REQUIREMENTS
Symbol
Parameter
Setup Time, HIGH or LOW
t_s
P_n to CP
Hold Time, HIGH or LOW
t_h
P_n to CP
Setup Time, HIGH or LOW
t_s
PE to CP
Hold Time, HIGH or LOW
t_h
PE to CP
Setup Time, HIGH or LOW
t_s
CEP or CET to CP
Hold Time, HIGH or LOW
t_h
CEP or CET to CP
Clock Pulse Width (Load)
t_w
HIGH or LOW
Clock Pulse Width (Count)
t_w
HIGH or LOW
t_w
MR Pulse Width, LOW
Recovery TIme
t_rec
MR to CP
*Voltage Range 3.3 V is 3.3 V ±0.3 V.
*Voltage Range 5.0 V is 5.0 V ±0.5 V.
74AC161
74AC161
V_CC*
(V)
T_A = +25°C
C_L = 50 pF
T_A = −40°C
to +85°C
C_L = 50 pF
Unit
Fig.
No.
Typ
Guaranteed Minimum
3.3 6.0
13.5
5.0 3.5
8.5
16.0
10.5
ns
3−9
3.3 −7.0
−1.0
5.0 −4.0
0
−0.5
0
ns
3−9
3.3 6.5
11.5
5.0 4.0
7.5
14.0
8.5
ns
3−9
3.3 −6.0
0
5.0 −3.5
0.5
0
1.0
ns
3−9
3.3 3.0
6.0
5.0 2.0
4.5
7.0
5.0
ns
3−9
3.3 −3.5
0
5.0 −2.0
0
0
0.5
ns
3−9
3.3 2.0
3.5
5.0 2.0
2.5
4.0
3.0
ns
3−6
3.3 2.0
4.0
5.0 2.0
3.0
4.5
3.5
ns
3−6
3.3 3.0
5.5
5.0 2.5
4.5
7.5
6.0
ns
3−6
3.3 −2.0
−0.5
5.0 −1.0
0
0
0.5
ns
3−9
www.onsemi.com
6