The Intel 8255 (or i8255) Programmable Peripheral Interface (PPI) chip was developed and manufactured by Intel in the first half of the 1970s for the Intel 8080 microprocessor. The 8255 …

Jul 18, 2024 · Versatility: The PPI 8255 can be programmed to operate in a variety of modes, which makes it a versatile component in many different systems. It provides three 8-bit ports that can be …

With a focus on innovation and technology leadership, Intel continues to play a significant role in shaping the future of computing and technology. The company invests heavily in research and development …

It consists of three 8-bit bidirectional I/O ports (24I/O lines) which can be configured as per the requirement. 8255A has three ports, i.e., PORT A, PORT B, and PORT C. Port A contains one 8-bit …

The 8255 PPI IC is a very powerful tool for interfacing peripheral equipment to the microprocessor-based system. It represents the optimum use of available pins and is flexible enough to interface …

Dec 7, 2021 · It has 24 O pins which may be individually programmed in 2 groups of 12 and used in 3 major modes of operation. In the first mode (MODE 0), each group of 12 /0 pins may be programmed …

What is an 8255 Microprocessor? 8255 microprocessor is a very popularly used programmable peripheral interface chip or PPI chip. The function of the 8255 microprocessor is to transmit data in …

Aug 18, 2025 · The 8255 programmable peripheral interface, 8255, is a peripheral interface device that can be programmed to make fundamental connections between machines and microprocessors.

The Intel’s 8255 is designed for use with Intel’s 8-bit, 16-bit and higher capability microprocessors. It has 24 input/output lines which may be individually programmed in two groups of twelve lines each, or …

8255 is a programmable I/O device that acts as interface between peripheral devices and the microprocessor for parallel data transfer.