4040
MCS-40 Family

 

Introduction date:   Late 1974
Category:   4-bit microprocessor (8-bit instructions)
Frequency:   500KHz - 740KHz
Technology:   P-channel silicon gate MOS technology
Number of transistors:   3,000 (10 microns)
Addressable memory:   8192x8-bit ROM and 1024x4-bit RAM
Number of instructions:   60 with a 8 level stack, 24x4-bit (or12x8-bit) registers and interrupt abilities
History:

 

 

The 4040 is an enhanced version of the 4004.

 

Second source:   No second source or clones was ever made of the 4040 CPU.

 


Intel          
C4040 C4040        
       
7551 Malaysia
7614
       
           
D4040 D4040 D4040      
     
(No copyright)
Malaysia
7634
(#1 pin indicator)
PHILIPPINES
8015
PHILIPPINES
8118
     
           
P4040          
         
Philippines
7835
         


 

Pin configuration

 


 

MCS-40 family
The MCS-40 family was a set of devices to make it possible to build a complete computer system.

4008/4009 standard memory and I/O interface set
4040 4-bit Central Processor Unit with 60 instructions
4101 256 x 4 RAM
4201 clock generator
4265 programmable general purpose I/O device
4269 programmable keyboard display device
4289 standard memory interface
4308 1024-bit mask programmable ROM and four 4-bit I/O Ports
4316/2316 2048-bit ROM
4702/1702 2048-bit Erasable and Electrically Reprogrammable MOS ROM (Static)

Home