4040

4-bit Microprocessor

Pinout

       DIP24-600mil
         +--\/--+
     D0  |1   24| CY
     D1  |2   23| CM-ROM0
     D2  |3   22| CM-ROM1
     D3  |4   21| Vdd1
STP ACK  |5   20| CM-RAM0
    STP  |6   19| CM-RAM1
    INT  |7   18| CM-RAM2
INT ACK  |8   17| CM-RAM3
    Vss  |9   16| SYNC
     Ø1  |10  15| Vdd2
     Ø2  |11  14| Vdd
  RESET  |12  13| TEST
         +------+

Frequency

Set reader to FREQ, put black probe to GND, red probe to 10,11 to measure CPU clock

External links

4040 page on Wikipedia
4040 page on CPU-World
4040 page on CPU-Galaxy

Files

• 
  P4040 Datasheet