This part is a kind of semiconductor called 74HCT1284.

Function of this product has Parallel printer interface transceiver/buffer.

Manufacturers : Philips

Image and pinout :

Some of the text within the PDF file :

INTEGRATED CIRCUITS 74HCT1284 Parallel printer interface transceiver/buffer Product specification Supersedes data of 1995 Jun 27 IC06 Data Handbook 1998 Jul 10 Philips Semiconductors Philips Semiconductors Product specification Parallel printer interface transceiver/buffer 74HCT1284 FEATURES • Asynchronous operation • 4-Bit transceivers • 3 additional buffer/driver lines • TTL compatible inputs • ESD protection exceeds 2000V per MIL STD 883 Method 3015 and 200V per Machine Model DESCRIPTION The 74HCT1284 parallel interface chip is designed to provide an asynchronous, 4-bit, bi-directional, parallel printer interface for personal computers. Three additional lines are included to provide handshaking signals between the host and the peripheral. The part is designed to match [ ... ]

74HCT1284 PDF Datasheet Download