SL74HCT163
Presettable Counters
High-Performance Silicon-Gate CMOS
The SL74HCT163 is identical in pinout to the LS/ALS163. The
SL74HCT163 may be used as a level converter for interfacing TTL or
NMOS outputs to High Speed CMOS inputs.
The SL74HCT163 is programmable 4-bit synchronous counter that
feature parallel Load, synchronous Reset, a Carry Output for cascading
and count-enable controls.
The SL74HCT163 is binary counter with synchronous Reset.
•
TTL/NMOS Compatible Input Levels
•
Outputs Directly Interface to CMOS, NMOS, and TTL
•
Operating Voltage Range: 4.5 to 5.5 V
•
Low Input Current: 1.0
µA
ORDERING INFORMATION
SL74HCT163N Plastic
SL74HCT163D SOIC
T
A
= -55° to 125° C for all packages
LOGIC DIAGRAM
PIN ASSIGNMENT
PIN 16 =V
CC
PIN 8 = GND
Inputs
Reset
L
H
H
H
H
X
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
Q0
L
P0
Q1
L
P1
Q2
L
P2
Q3
L
P3
Function
Reset to “0”
Preset Data
No count
No count
Count
No count
No change
No change
Count up
No change
X=don’t care
P0,P1,P2,P3 = logic level of Data inputs
Ripple Carry Out = Enable T
•
Q0
•
Q1
•
Q2
•
Q3
SLS
System Logic
Semiconductor
SLS [ SYSTEM LOGIC SEMICONDUCTOR ]
