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SN65LBC170DWR Datasheet(PDF) 1 Page - Texas Instruments |
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SN65LBC170DWR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 21 page SN65LBC170, SN75LBC170 TRIPLE DIFFERENTIAL TRANSCEIVERS SLLS459C − NOVEMBER 2000 − REVISED MARCH 2005 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Three Differential Transceivers in One Package D Signaling Rates† Up to 30 Mbps D Low Power and High Speed D Designed for TIA/EIA-485, TIA/EIA-422, ISO 8482, and ANSI X3.277 (HVD SCSI Fast−20) Applications D Common-Mode Bus Voltage Range –7 V to 12 V D ESD Protection on Bus Terminals Exceeds 12 kV D Driver Output Current up to ±60 mA D Thermal Shutdown Protection D Driver Positive and Negative Current Limiting D Power-Up, Power-Down Glitch-Free Operation D Pin-Compatible With the SN75ALS170 D Available in Shrink Small-Outline Package description The SN65LBC170 and SN75LBC170 are monolithic integrated circuits designed for bidirectional data communication on multipoint bus-transmission lines. Potential applications include serial or parallel data transmission, cabled peripheral buses with twin axial, ribbon, or twisted-pair cabling. These devices are suitable for FAST-20 SCSI and can transmit or receive data pulses as short as 25 ns, with skew less than 3 ns. These devices combine three 3-state differential line drivers and three differential input line receivers, all of which operate from a single 5-V power supply. The driver differential outputs and the receiver differential inputs are connected internally to form three differential input/output (I/O) bus ports that are designed to offer minimum loading to the bus whenever the driver is disabled or VCC = 0. These ports feature a wide common-mode voltage range making the device suitable for party-line applications over long cable runs. Copyright 2002, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. 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. †The signaling rate of a line is the number of voltage transitions that are made per second expressed in the units bps (bits per second). logic diagram 1A 1DIR 1B 2A 2B 3A 3B 1D 2DIR 2D 3DIR 3D 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 1D 1DIR NC GND NC 2D 2DIR NC 3D 3DIR 1B 1A NC NC VCC 2B 2A 3B 3A NC SN65LBC170DW (marked as 65LBC170) SN75LBC170DW (marked as 75LBC170) (TOP VIEW) 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 1D 1DIR NC GND 2D 2DIR 3D 3DIR 1B 1A NC VCC 2B 2A 3B 3A SN65LBC170DB (marked as BL170) SN75LBC170DB (marked as BL170) (TOP VIEW) NC − No internal connection |
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