TECHNICAL DATA
KK74ACT161
Presettable Counter
High-Speed Silicon-Gate CMOS
The KK74ACT161 is identical in pinout to the LS/ALS161,
HC/HCT161. The KK74ACT161 may be used as a level converter for
interfacing TTL or NMOS outputs to High Speed CMOS Inputs.
The KK74ACT161 is programmable 4-bit synchronous modulo-16
counter that feature parallel Load, asynchronous Reset, a Carry Output for
cascading and count-enable controls.
The KK74ACT161 is binary counter with asynchronous Reset.
鈥?/div>
TTL/NMOS Compatible Input Levels
鈥?/div>
Outputs Directly Interface to CMOS, NMOS, and TTL
鈥?/div>
Operating Voltage Range: 4.5 to 5.5 V
鈥?/div>
Low Input Current: 1.0
碌A(chǔ);
0.1
碌A(chǔ)
@ 25擄 C
鈥?/div>
Outputs Source/Sink 24 mA
ORDERING INFORMATION
KK74ACT161N Plastic
KK74ACT161D SOIC
T
A
= -40擄 to 85擄 C for all packages
LOGIC DIAGRAM
PIN ASSIGNMENT
PIN 16 =V
CC
PIN 8 = GND
Inputs
Reset
L
H
H
H
H
H
Load
X
L
H
H
H
X
Enable
P
X
X
X
L
H
X
FUNCTION TABLE
Outputs
Enable
T
X
X
L
X
H
X
Clock
X
Q0
L
P0
Q1
L
P1
Q2
L
P2
Q3
L
P3
Function
Reset to 鈥?鈥?/div>
Preset Data
No count
No count
Count
No count
No change
No change
Count up
No change
X=don鈥檛 care
P0,P1,P2,P3 = logic level of Data inputs
Ripple Carry Out = Enable T
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