• - 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 SN65LBC179, SN65LBC179Q, and SN75LBC179 differential driver and receiver pairs are monolithic integrated circuits designed for bidirectional data communication over long cables that take on the characteristics of transmission lines. They are balanced, or differential, voltage mode devices that meet or exceed the requirements of industry standards ANSI RS-485 and ISO 8482:1987(E). Both devices are designed using TI’s proprietary LinBiCMOS™ with the low power consumption of CMOS and the precision and robustness of bipolar transistors in the same circuit.

The SN65LBC179, SN65LBC179Q, and SN75LBC179 combine a differential line driver and differential line receiver and operate from a single 5-V supply. The driver differential outputs and the receiver differential inputs are connected to separate terminals for full-duplex operation and are designed to present minimum loading to the bus when powered off (V_CC = 0).

特性

• Designed for High-Speed Multipoint Data Transmission Over Long Cables
• Operates With Pulse Widths as Low as 30 ns
• Low Supply Current . . . 5 mA Max
• Meets or Exceeds the Standard Requirements of ANSI RS-485 and ISO 8482:1987(E)
• Common-Mode Voltage Range of –7 V to 12 V
• Positive- and Negative-Output Current Limiting
• Driver Thermal Shutdown Protection
• Pin Compatible With the SN75179B

LinBiCMOS is a trademark of Texas Instruments.