PALC16L8

Cypress PALC20 Series devices are high- speed electrically programmable and UV- erasable logic devices of PALC16L8 produced in a proprietary N-well CMOS EPROM process. These devices utilize a sum-of-products (AND-OR) structure providing users with the ability to program custom logic functions serving unique requirements.

PALs are offered in 20-pin plastic and ceramic DIP, plastic SOJ, and ceramic LCC packages. The ceramic package of PALC16L8 can be equipped with an erasure window; when exposed to UV light, the PAL is erased and can then be reprogrammed.

Before programming, AND gates or product terms are connected via EPROM cells to both true and complement inputs.

Programming an EPROM cell of PALC16L8 disconnects an input term from a product term. Selective programming of these cells allows a specific logic function to be implemented in a PALC device.

PALC PALC16L8 devices are supplied in four functional configurations designated 16R8, 16R6, 16R4, and 16L8. These 8 devices have potentially 16 inputs and 8 outputs configurable by the user. Output configurations of 8 registers, 8 combinatorial, 6 registers and 2 combinatorial as well as 4 registers and 4 combinatorial are provided by the 4 functional variations of the product family.