Obsolete memory chips, 1K X 4 static ram, have a cypress PN, need to find equivalent. | Cypress Semiconductor
Obsolete memory chips, 1K X 4 static ram, have a cypress PN, need to find equivalent.
Cypress PN is CY7C149-45PC-ND and CY7C148-35PC-ND. I need to find replacement chips for a board we are using with industry standard DIP 18 pin static ram chips (standard for the 80's anyway), want to find out if the CY7#'s I gave is equivalent to these PN's:
3) MWS5113E3 (RCA or Intersil)
4 TC5514 P, not sure of brand, has a T designator (Not TI)
I need to find these parts, any of the 4 above will work, and want to know if the Cypress #'s are the same as those 4.
Can anyone point to a site that actually has these old parts?