• - 交流-直流(AC-DC)控制器和稳压器
• - 直流-直流(DC-DC)控制器、转换器和稳压器
• - 电压和电流管理
• - 通讯IC
• - 驱动器
• - 热管理

• - 时钟及数据分配
• - 标准逻辑

• - 放大器和比较器
• - 模拟开关
• - 数字电位计
• - 接口
• - EMI和RFI滤波器

• - EEPROM存储器
• - 非易失性只读存储器(NVRAM)
• - SRAM存储器

说明

The SN65LBC171 and SN75LBC171 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 V_CC = 0.

特性

• Three Differential Transceivers in One Package
• Signaling Rates¹ 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 -7Vto12 V
• ESD Protection on Bus Terminals Exceeds12 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 SN75ALS171
• Available in Shrink Small-Outline Package

¹The signaling rate of a line is the number of voltage transitions that are made per second expressed in the units bps (bits per second).