SN75LBC170 - 三路差动收发器

SN75LBC170是TI德州仪器公司的一款SCSI并行接口(SPI)产品，SN75LBC170是三路差动收发器，本站介绍了SN75LBC170的封装应用图解、特点和优点、功能等，并给出了与SN75LBC170相关的TI元器件型号供参考。

SN75LBC170 - 三路差动收发器 - SCSI并行接口(SPI) - SCSI终端、收发器 - 德州仪器

产品描述

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.

The driver’s active-high enable and the receiver’s active-low enable are tied together internally and provide a direction input for each driver/receiver pair.

The SN75LBC170 is characterized for operation over the temperature range of 0°C to 70°C. The SN65LBC170 is characterized for operation over the temperature range of –40°C to 85°C.

产品特性

Three Differential Transceivers in One Package
Signaling Rates† Up to 30 Mbps
Low Power and High Speed
Designed for TIA/EIA-485, TIA/EIA-422, ISO 8482, and ANSI X3.277 (HVD SCSI Fast-20) Applications
Common-Mode Bus Voltage Range –7 V to 12 V
ESD Protection on Bus Terminals Exceeds 12 kV
Driver Output Current up to ±60 mA
Thermal Shutdown Protection
Driver Positive and Negative Current Limiting
Power-Up, Power-Down Glitch-Free Operation
Pin-Compatible With the SN75ALS170
Available in Shrink Small-Outline Package

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