PPI8255 Datasheet PDF – Parallel Data Transfer

Part Number: PPI8255

Function: Parallel Data Transfer (PPI 8255)

Package: DIP 40 Pin type

Manufacturer: Intel

Block Diagram

PPI8255 datasheet


This is The 8255 PPI chip is a general purpose programmable I/O device.

One intermediate shale used for parallel interfacing is the Programmable Peripheral Interface (PPI) 8255. This flake is manufactured by Intel Corporation and packaged in the form of a 40 pin dual in line package and designed for a variety of interface functions in the microprocessor. PPI 8255 has 24 I / O pins which are divided into three 8-bit ports. These ports are port A (PA0-PA7), port B (PB0-PB7) and port C (PC0-PC7). As a path for transferring data to and from PPI8255 an 8 bit data bus channel (D0-D7) is provided. The data bus from this PPI can be connected directly to the data bus from a microcomputer.

1. 8255A Programmable Peripheral Interface (PPI)
2. 8259 Programmable Interrupt Controller (PIC)
3. 8253/4 Programmable Interval Timer (PIT)


PPI8255 pinout


Other data sheets are available within the file: 8255

PPI8255 Datasheet PDF Download



PPI8255 pdf