74VHC161N Fairchild Semiconductor, 74VHC161N Datasheet - Page 3
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74VHC161N
Manufacturer Part Number
74VHC161N
Description
IC COUNTER BINARY 4BIT 16DIP
Manufacturer
Fairchild Semiconductor
Series
74VHCr
Datasheet
1.74VHC161MX.pdf
(11 pages)
Specifications of 74VHC161N
Logic Type
Binary Counter
Direction
Up
Number Of Elements
1
Number Of Bits Per Element
4
Reset
Asynchronous
Timing
Synchronous
Count Rate
125MHz
Trigger Type
Positive Edge
Voltage - Supply
2 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
16-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
©1993 Fairchild Semiconductor Corporation
74VHC161 Rev. 1.4
Mode Select Table
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Block Diagram
Please note that this diagram is provided only for the understanding of logic operations and should not be used to
estimate propagation delays.
MR
H
H
H
H
L
PE
X
H
H
H
L
CET CEP
H
X
X
X
L
X
X
H
X
L
Reset (Clear)
Load (P
Count (Increment)
No Change (Hold)
No Change (Hold)
Action on the Rising
Clock Edge (
n
→ Q
n
)
)
3
State Diagram
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