8255A, 8259A, 8279 IP Core Peripheral Replacements

8255A, 8259A, 8279 Peripheral Replacements Program

Digital Blocks is the industry leader in providing cycle-accurate hardware equivalent Intel® and Intersil 8259A, 8255A, and 8279 IP Core Peripheral Replacements as VHDL or Verilog soft cores in CPLDs, FPGAs, ASICs, and ASSP devices.

DB8259A Programmable Interrupt Controllers

Our Programmable Interrupt Controller series consists of the DB8259A and DB8259S interrupt controllers. Our DB8259A Programmable Interrupt Controllers can be replaced with Altera®, Lattice®, Microsemi®, and Xilinx® CPLDs & FPGAs.

DB8259S Programmable Interrupt Controllers

Our Programmable Interrupt Controller series consists of the DB8259A and DB8259S interrupt controllers. Our DB8259S adds a clock and can be replaced with Altera, Lattice, and Xilinx CPLDs & FPGAs.

DB8255A Programmable Peripheral Interface

Our Programmable Peripheral Interface IP Core consists of the DB8255A. Our 82C55A Programmable Peripheral Interface can be replaced with Altera, Lattice, and Xilinx CPLDs & FPGAs.

DB8279 Programmable Keyboard / Display Interface

Digital Blocks’ Programmable Keyboard / Display Interface IP Core consist of the DB8279. Our 8279 Programmable Keyboard / Display Interface can be replaced with Altera, Lattice, and Xilinx CPLDs & FPGAs.