Shenzhen Xinluda Information Technology Co., Ltd. (XINLUDA) Electronic Parts
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The XD71055 from Xinluda (Shenzhen Xinluda Information Technology Co., Ltd.) is a CMOS programmable peripheral interface (PPI), also referred to as a parallel interface unit. It is a general-purpose programmable input/output device designed for use with 8080/8085-class and other common microprocessor and microcontroller systems, and it is functionally compatible with the widely deployed 8255 / 82C55 / NEC µPD71055 family of parallel interface units. This compatibility makes the XD71055 a practical alternative for designs that depend on the legacy 8255 architecture but require a current production source.
The device organizes its I/O into three 8-bit ports (Port A, Port B, and Port C), delivering 24 programmable I/O lines that can be configured by the host processor at run time. Port C can be split into two 4-bit nibbles, and individual bits can be set or reset for fine-grained control of status and handshake signals. Three programmable operating modes support basic input/output (Mode 0), strobed I/O with handshaking (Mode 1), and bidirectional bus operation (Mode 2), giving designers flexible parallel data transfer. Inputs and outputs are TTL-compatible.
The XD71055 is a specialized interface IC with little to no authorized-distributor stock, which makes it difficult to source through conventional channels. Pacific Component Xchange is an independent distributor focused on hard-to-find and end-of-life interface devices, power-management ICs, and other scarce components. We help engineers and procurement teams secure obsolete and allocation-constrained parts like the XD71055 with attention to authenticity and traceability, and we ship globally to keep your production lines and service operations running.
Pricing for the XD71055 is provided on a request-for-quote basis. Contact Pacific Component Xchange today to request a quote, confirm current availability, and discuss your quantity, date-code, and packaging requirements.
The XD71055 is a CMOS programmable peripheral interface (parallel interface unit) from Xinluda. It provides three 8-bit ports (24 programmable I/O lines) for connecting a microprocessor or microcontroller to parallel peripherals, and it is functionally compatible with the standard 8255 family.
Yes. The XD71055 is functionally compatible with the industry-standard 8255 programmable peripheral interface architecture, the same family as the Intel 82C55 and NEC u00b5PD71055 (the u00b5PD71055 is itself a CMOS 8255-compatible parallel interface unit). This makes it a practical alternative for designs built around the 8255 register and pin architecture.
It provides 24 programmable I/O lines, organized as three 8-bit ports (Port A, Port B, and Port C). Port C can be used as two 4-bit nibbles, and its bits can be individually set or reset.
Pacific Component Xchange lists the XD71055 in a DIP-40 package, consistent with the standard 8255-family parallel interface footprint. Contact us to confirm the exact package and date code for your order.
The XD71055 is a niche interface IC with little to no authorized-distributor availability. Pacific Component Xchange sources hard-to-find parts like this independently, so pricing and lead time are confirmed per order through a request for quote.
Yes. Pacific Component Xchange is an independent distributor that ships globally and specializes in scarce and obsolete components. Submit an RFQ with your quantity and requirements to get current availability and a quote.
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