MM74HC161N Fairchild Semiconductor, MM74HC161N Datasheet - Page 2
![IC COUNTER BINARY PRESET 16-DIP](/photos/6/52/65285/261-16-dip_sml.jpg)
MM74HC161N
Manufacturer Part Number
MM74HC161N
Description
IC COUNTER BINARY PRESET 16-DIP
Manufacturer
Fairchild Semiconductor
Series
74HCr
Datasheet
1.MM74HC163N.pdf
(9 pages)
Specifications of MM74HC161N
Logic Type
Binary Counter
Direction
Up
Number Of Elements
1
Number Of Bits Per Element
4
Reset
Asynchronous
Timing
Synchronous
Count Rate
40MHz
Trigger Type
Positive Edge
Voltage - Supply
2 V ~ 6 V
Operating Temperature
-55°C ~ 125°C
Mounting Type
Through Hole
Package / Case
16-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
74HC161
www.fairchildsemi.com
Connection Diagram
Logic Diagram
2
Truth Tables
H
L
X
CLK CLR ENP ENT
CLK CLR ENP ENT
X
X
X
X
X
X
X
LOW Level
LOW-to-HIGH Transition
HIGH Level
Don’t Care
H
H
H
H
H
H
H
H
H
H
L
L
X
H
X
H
X
H
X
H
L
L
L
L
MM74HC161
MM74HC163
X
H
X
H
X
H
X
H
L
L
L
L
Load
Load
H
H
H
H
H
H
H
H
X
X
L
L
Count & RC disabled
Count & RC disabled
Count & RC disabled
Count & RC disabled
Increment Counter
Increment Counter
Count disabled
Count disabled
Function
Function
Clear
Clear
Load
Load