View 74hct1284 3 datasheet:

INTEGRATED CIRCUITS 74HCT1284 Parallel printer interface transceiver/buffer Product specification 1998 Jul 10 Supersedes data of 1995 Jun 27 IC06 Data Handbook Philips Semiconductors Philips Semiconductors Product specification Parallel printer interface transceiver/buffer 74HCT1284 FEATURES DESCRIPTION The 74HCT1284 parallel interface chip is designed to provide an • Asynchronous operation asynchronous, 4-bit, bi-directional, parallel printer interface for • 4-Bit transceivers personal computers. Three additional lines are included to provide handshaking signals between the host and the peripheral. The part • 3 additional buffer/driver lines is designed to match IEEE 1284 standard. • TTL compatible inputs The 4 transceiver pins (A/B 1-4) allow data transmission from t