SN75LBC180

SN55LBC180 SN65LBC180 D−14 RSA−16 SN75LBC180 N−14 www.ti.com................................................................................................................................................... SLLS174G – FEBRUARY 1994 – REVISED APRIL 2009 LOW-POWER RS-485 LINE DRIVER AND RECEIVER PAIRS FEATURES 1 2 Designed for High-Speed Multipoint Data Transmission Over Long Cables Operate With Pulse Durations as Low as 30 ns Low Supply Current . . . 5 mA Max Meet or Exceed the Requirements of ANSI Standard RS-485 and ISO 8482:1987(E) 3-State Outputs for Party-Line Buses Common-Mode Voltage Range of –7 V to 12 V Thermal Shutdown Protection Prevents Driver Damage From Bus Contention Positive and Negative Output Current Limiting Pin Compatible With the SN75ALS180 DESCRIPTION The SN55LBC180, SN65LBC180 and SN75LBC180 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). These 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. D OR N PACKAGE (TOP VIEW) NC R RE DE D GND GND 1 2 3 4 5 6 7 14 VCC 13 VCC 12 A 11 B 10 Z 9Y 8 NC RSA PACKAGE (TOP VIEW) NC...