GENERAL DESCRIPTION
Device logic is automatically configured according to the user’s design specification. A design is implemented using any of a number of popular design software packages, allowing automatic creation of a programming file based on Boolean or state equations. Design software also verifies the design and can provide test vectors for the finished device. Programming can be accomplished on standard PAL device programmers. The PALCE20V8 utilizes the familiar sum-of-products (AND/OR) architecture that allows users to implement complex logic functions easily and efficiently. Multiple levels of combinatorial logic can always be reduced to sum-of-products form, taking advantage of the very wide input gates available in PAL devices. The equations are programmed into the device through floating-gate cells in the AND logic array that can be erased electrically. Publication# 16491 Amendment/0 Rev: E Issue Date: November 1998 The fixed OR array allows up to eight data product terms per output for logic functions.
Lattice Semiconductor
