54AC161DMQB.
Counter Single 4-Bit Sync Binary UP 16-Pin CDIP Rail

From NATIONAL SEMICONDUCTOR

Logic FamilyAC
Logical FunctionCounter
MountingThrough Hole
Number of Elements1
Number of Bits4
Operating Supply Voltage (Max)6 V
Operating Supply Voltage (Min)2 V
Operating Supply Voltage (Typ)2.5/3.3/5 V
Operating Temp Range-55C to 125C
Operating Temperature ClassificationMilitary
Package TypeCDIP
PackagingRail
Pin Count16
Propagation Delay Time18.5 ns
Rad HardenedNo
TechnologyCMOS
TypeBinary

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