75ALS170A Datasheet | Texas Instruments

Feature Independent Direction Controls for Each Channel SLLS055D - AUGUST 1987 - REVISED SEPTEMBER 1995 DW PACKAGE (TOP VIEW) 1D 1 1DIR 2 NC 3 GND 4 NC 5 2D 6 2DIR 7 NC 8 3D 9 3DIR 10 20 1B 19 1A 18 NC 17 NC 16 VCC 15 2B 14 2A 13 3B 12 3A 11 NC - No internal connection J PACKAGE (TOP VIEW) 1D 1 1DIR 2 GND 3 2D 4 2DIR 5 3D 6 3DIR 7 14 1B 13 1A 12 VCC 11 2B 10 2A 9 3B 8 3A description The SN75ALS170 and SN75ALS170A triple differential bus transceivers are monolithic integrated circuits designed for bidirectional data munication on multipoint bus transmission lines. It is designed for balanced transmission lines and the driver meets ANSI Standards EIA/TIA-422-B and RS-485 and both the driver and receiver meet ITU Remendation V.11. The SN75ALS170A is designed for FAST-20 SCSI and can transmit or receive data pulses as short as 30 ns with a maximum skew of 5 ns. The SN75ALS170 and SN75ALS170A operate from a single 5-V power supply. The drivers and receivers have active-high and active-low enables, respectively, which are internally connected together to function as a direction control. The driver differential outputs and the receiver differential inputs are connected internally to form differential input/output (I/O) bus ports that are designed to offer minimum loading to the bus when the driver is disabled or VCC = 0. These ports feature wide positive and negative mon-mode voltage ranges making the device suitable for party-line applications. The SN75ALS170 and the SN75ALS170A are characterized for operation from 0°C to 70°C. AVAILABLE OPTIONS SKEW LIMIT PART NUMBER 10 ns SN75ALS170DW SN75ALS170J 5 ns SN75ALS170ADW Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of...