XD8255-2 – Programmable Peripheral Interface (I/O Expander) – Xinluda

The Xinluda XD8255-2 is a general-purpose programmable peripheral interface (PPI) in a DIP-40 package, providing 24 individually programmable I/O pins compatible with the industry-standard 8255 architecture and the 8080/8085 microprocessor families.

The Xinluda XD8255-2 is a general-purpose Programmable Peripheral Interface (PPI) built on the industry-standard 8255 architecture. It provides 24 I/O lines that may be programmed in two groups of twelve (group I and group II) and operated in three modes, making it a versatile interface bridge between a microprocessor bus and external peripherals. Designed for use with the 8080/8085 microprocessor families, and housed in a through-hole DIP-40 package, it is well suited to legacy system maintenance, industrial control, and educational designs that rely on the classic 8255 programming model.

Key Features

• General-purpose Programmable Peripheral Interface based on the 8255 architecture
• 24 programmable I/O pins, organized in two groups of twelve
• Three modes of operation (Mode 0 basic I/O, Mode 1 strobed I/O, Mode 2 bidirectional bus)
• Fully compatible with the 8080/8085 microprocessor families
• All inputs and outputs TTL compatible
• Direct bit set/reset eases control application interfaces
• Eight Darlington drive outputs for printers and displays
• Port C can be split into two independent 4-bit control and status ports for ports A and B
• Single +5 V supply
• Through-hole DIP-40 package

Applications

• Microprocessor I/O expansion and bus interfacing
• Industrial and process control systems
• Legacy and embedded system maintenance / 8255-based designs
• Keyboard, display, and printer interfacing
• Test, measurement, and instrumentation equipment
• Educational and development boards

Why Source XD8255-2 from Pacific Component Xchange

The XD8255-2 is a specialized, hard-to-find interface component with little to no authorized-distributor availability through mainstream channels. Pacific Component Xchange is an independent distributor focused on sourcing obsolete, end-of-life, and difficult-to-locate interface and peripheral ICs like the XD8255-2. We help engineers and procurement teams secure the parts that keep production lines and legacy systems running.

Every order is backed by our commitment to authenticity and quality, with inspection and verification processes designed to guard against counterfeit and substandard components. We offer global shipping and responsive support for both prototype quantities and volume requirements.

Because the XD8255-2 is offered on a Request-For-Quote basis, pricing and lead time are confirmed per order. Contact Pacific Component Xchange today to request a quote and let our sourcing specialists locate authentic XD8255-2 inventory for your project.