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KODENSHI KOREA - Presettable Counter High-Speed Silicon-Gate CMOS

Numéro de référence KK74AC161
Description Presettable Counter High-Speed Silicon-Gate CMOS
Fabricant KODENSHI KOREA 
Logo KODENSHI KOREA 





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KK74AC161 fiche technique
TECHNICAL DATA
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Presettable Counter
High-Speed Silicon-Gate CMOS
The KK74AC161 is identical in pinout to the LS/ALS161,
HC/HCT161. The device inputs are compatible with standard CMOS
outputs; with pullup resistors, they are compatible with LS/ALS outputs.
The KK74AC161 is programmable 4-bit synchronous modulo-16
counter that feature parallel Load, asynchronous Reset, a Carry Output for
cascading and count-enable controls.
The KK74AC161 is binary counter with asynchronous Reset.
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2.0 to 6.0 V
Low Input Current: 1.0 µA; 0.1 µA @ 25° C
High Noise Immunity Characteristic of CMOS Devices
Outputs Source/Sink 24 mA
LOGIC DIAGRAM
KK74AC161
ORDERING INFORMATION
KK74AC161N Plastic
KK74AC161D SOIC
TA = -40° to 85° C for all packages
Outputs
PIN ASSIGNMENT
PIN 16 =VCC
PIN 8 = GND
FUNCTION TABLE
Inputs
Outputs
Reset Load Enable Enable Clock Q0 Q1 Q2 Q3
PT
Function
LX
X
X
X L L L L Reset to “0”
HL
X
X
P0 P1 P2 P3 Preset Data
HH
X
L
No change
No count
HH
L
X
No change
No count
HH
H
H
Count up
Count
HX
X
X
No change
No count
X=don’t care
P0,P1,P2,P3 = logic level of Data inputs
Ripple Carry Out = Enable T Q0 Q1 Q2 Q3
1

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