Interfacing SRAM memory with PIC18F87j11

Thread Starter

hn123

Joined Sep 1, 2012
2
hi,

i am design one simple Circuit which i wants to interface SRAM with My PIC controller.
I already used for it some logic IC 74CH138 & 74CH373 .and I used IS61LV256AL.last one is memory IC.

I interface this but still i have some problem with control pin .

I attached here with my schematic with my this post.
Please guide me for this.
 

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ErnieM

Joined Apr 24, 2011
8,377
Even using Kicad your schematic does not open properly. A Kicad sxchematic depends on the libraries it was created with.

It is always best to show your example in a format that requires no special additional files or programs.

It seems the data comes direct from the PIC, and the full 16 bit address comes from an 8 bit port where the high byte is latched by the 74LS373. It's not clear what the intent of the 74LS373 is, that's a rather large chip for one bit in and one bit out.

What is your method for controlling WE OE and CS on the memory?
 
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