MC74AC161_15 Datasheet, PDF (10/12 Pages) ON Semiconductor – Synchronous Presettable Binary Counter

MC74AC161, MC74ACT161, MC74AC163, MC74ACT163
AC OPERATING REQUIREMENTS
Symbol
Parameter
t_s
Setup Time, HIGH or LOW
P_n to CP
t_h
Hold Time, HIGH or LOW
P_n to CP
t_s
Setup Time, HIGH or LOW
PE to CP
t_h
Hold Time, HIGH or LOW
PE to CP
t_s
Setup Time, HIGH or LOW
CEP or CET to CP
t_h
Hold Time, HIGH or LOW
CEP or CET to CP
t_w
Clock Pulse Width (Load)
HIGH or LOW
t_w
Clock Pulse Width (Count)
HIGH or LOW
t_w
MR Pulse Width, LOW
t_rec
Recovery Time
MR to CP
*Voltage Range 5.0 V is 5.0 V ±0.5 V.
74ACT161
74ACT161
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
5.0 7.0
9.5
11.5
ns
3−9
5.0 −3.0
0
0
ns
3−9
5.0 6.0
8.5
9.5
ns
3−9
5.0 −3.5
− 0.5
− 0.5
ns
3−9
5.0 4.0
5.5
6.5
ns
3−9
5.0 −2.0
0
0
ns
3−9
5.0 2.0
3.0
3.5
ns
3−6
5.0 2.0
3.0
3.5
ns
3−6
5.0 3.0
3.0
7.5
ns
3−6
5.0
0
0
0.5
ns
3−9
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