74ACT161_01 Datasheet, PDF (6/13 Pages) STMicroelectronics – SYNCHRONOUS PRESETTABLE 4-BIT COUNTER

74ACT161
AC ELECTRICAL CHARACTERISTICS (C_L = 50 pF, R_L = 500 Ω, Input t_r = t_f = 3ns)
Test Condition
Value
Symbol
Parameter
V_CC
(V)
t_PLH t_PHL Propagation Delay
Time CLOCK to Q
t_PLH t_PHL Propagation Delay
Time CLOCK to
CARRY OUT
t_PLH t_PHL Propagation Delay
Time TE to CARRY
OUT
t_PHL Propagation Delay
TimeCLEAR to
CARRY OUT
t_WL CLEAR Pulse
Width LOW
t_W CLOCK Pulse
Width (LOAD)
HIGH or LOW
t_W CLOCK Pulse
Width (COUNT)
HIGH or LOW
t_s Setup Time HIGH
or LOW (INPUT to
CLOCK)
t_h Hold Time HIGH or
LOW
(INPUT to CLOCK)
t_s Setup Time HIGH
or LOW
(LOAD to CLOCK)
t_h Hold Time HIGH or
LOW
(LOAD to CLOCK)
t_s Setup Time HIGH
or LOW (PE or TE
to CLOCK)
t_h Hold Time HIGH or
LOW (PE or TE to
CLOCK)
t_REM Recovery Time
(CLEAR to Q)
f_MAX Maximum Clock
Frequency
5.0^(*)
5.0^(*)
5.0^(*)
5.0^(*)
5.0^(*)
5.0^(*)
5.0^(*)
5.0^(*)
5.0^(*)
5.0^(*)
5.0^(*)
5.0^(*)
5.0^(*)
5.0^(*)
5.0^(*)
T_A = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
1.5 5.5 9.5
10.5
10.5 ns
1.5 6.0 11.0
12.0
12.0 ns
1.5 4.5 8.5
10.0
10.0 ns
1.5 6.0 10.0
11.0
11.0 ns
2.5 3.0
7.5
7.5 ns
2.0 3.0
3.5
3.5 ns
2.0 3.0
3.5
3.5 ns
1.5 9.5
11.5
11.5 ns
-0.5 0
1.0
1.0 ns
2.0 8.5
9.5
9.5 ns
-2.0 -0.5
0
0 ns
1.5 5.5
6.5
6.5 ns
-2.0 0
0.5
0.5 ns
-0.5 0.5
1.0
1.0 ns
100 290
90
85
MHz
(*) Voltage range is 5.0V ± 0.5V
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