4008

 

Introduction date:   1973
Type:   Address Latch Chip.
Memory:    
Technology:   P-channel silicon gate MOS technology
Number of transistors:    
History:

 
  The 4008 was designed to be used with the 4009 to make it easier to interface to other chips.
It was used with other MCS-4/40 devices such as the 4004 and 4040 CPU.
 
Second source:   National Semiconductors was the only second source.

 


Intel          
C4008 C4008        
       
Malaysia
7550
Malaysia
7508
       
           
D4008          
         
Philippines
7912
         
           
P4008 P4008        
       
MEXICO
N.D.C
Malaysia
7544
       

 

 


National Semiconductor        
INS4008N          
         
7725          

 


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