IN74HC163A
P
RESETTABLE
C
OUNTERS
High-Performance Silicon-Gate CMOS
The IN74HC163A is identical in pinout to the LS/ALS163. The
device inputs are compatible with standard CMOS outputs; with
pullup resistors, they are compatible with LS/ALSTTL outputs.
The IN74HC163A is programmable 4-bit synchronous counter
that feature parallel Load, synchronous Reset, a Carry Output for
cascading and count-enable controls.
The IN74HC163A is binary counter with synchronous Reset.
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2.0 to 6.0 V
Low Input Current: 1.0
碌A(chǔ)
High Noise Immunity Characteristic of CMOS Devices
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LOGIC DIAGRAM
ORDERING INFORMATION
IN74HC163AN Plastic
IN74HC163AD SOIC
T
A
= -55擄 to 125擄 C for all
packages
PIN ASSIGNMENT
PIN 16 =V
CC
PIN 8 = GND
FUNCTION TABLE
Rese
t
L
H
H
H
H
X
Load
X
L
H
H
H
X
Inputs
Enable Enable
P
T
X
X
X
X
X
L
L
X
H
H
X
X
Clock
Q0
L
P0
Outputs
Q1 Q2
L
L
P1
P2
No change
No change
Count up
No change
Q3
L
P3
Function
Reset to 鈥?鈥?/div>
Preset Data
No count
No count
Count
No count
X=don鈥檛 care
P0,P1,P2,P3 = logic level of Data inputs
Ripple Carry Out = Enable T
IN74HC163A相關(guān)型號PDF文件下載
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