ST34C87

www.DataSheet4U.com ST34C87 ...the analog plus company TM QUAD RS-422 CMOS Differential Line Driver June 1997-3 FEATURES D Pin-to-Pin Compatible with National DS34C87 D Low Power CMOS Design D Three-State Outputs with Enable Pin D Meets the EIA RS-422 Requirements D Low Propagation Delays D High Speed GENERAL DESCRIPTION The ST34C87 is a CMOS quad differential line driver designed to meet the standard RS-422 requirements and digital data transmission over balanced lines. To improve noise margin and output stability for slow changing input signals, special hysteresis is built in the ST34C87 circuit. The ST34C87 is a high speed CMOS line driver designed to operate with MFM / RLL controllers and hard disk drives as well as RS-422 digital data transmission applications. ST34C87 is suitable for low power 5V operation with high input voltage protection devices. ORDERING INFORMATION Part No. ST34C87CP16 ST34C87CF16 ST34C87IP16 ST34C87IF16 Package 16 Lead 300 Mil PDIP 16 Lead 150 Mil JEDEC SOIC 16 Lead 300 Mil PDIP 16 Lead 150 Mil JEDEC SOIC Operating Temperature Range 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C INPUT A INPUT D OUTPUTA+ OUTPUT A- OUTPUT D+ OUTPUT D- ENABLE A/B ENABLE C/D OUTPUTBOUTPUTB+ OUTPUT COUTPUT C+ INPUT B INPUT C Figure 1. Block Diagram Rev. 1.01 E1991 EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 z (510) 668-7000 z FAX (510) 668-7017 1 ST34C87 PIN CONFIGURATION INPUT A OUTPUT A+ OUTPUT AENABLE A/B OUTPUT BOUTPUT B+ INPUT B...