16bit RAM using 74ls194

[YuridaE]

Hi, How can i make a 16 bit RAM using 4 74ls194 with 2 address lines and 4input data lines.

 

[ronsimpson]

I think you want a block of ICs with:
Inputs Din(0-3) (can be ABCD)
Input Clock
Input A0, A1
Input Rd/We (read write)
Outputs Dout (0-3) (can be ABCD)


Hint:
CLR=1, S0=1, S1=0 to make the 74LS194 work like a 'memory' not like a counter/shift register.

Use a 5th IC do decode A0, A1 to select which 74LS194 will be allowed to input data or output data.

Because the 74LS194 does not have tri-state output you will need to find a way to select only one to output at a time based off of A0, A1.

Work on this for a while and see what you can do.