SN65LBC173

MeetsorExceedstheRequirementsofANSI Standards EIA/TIA-422-B,EIA/TIA-423-B, RS-485, and ITURecommendations V.10 and V.11.
Designed to Operate With Pulse Durationsas Short as 20 ns
Designed for Multipoint Bus Transmissionon Long Bus Lines in Noisy Environments
Input Sensitivity . . . ±200 mV
Low-Power Consumption . . . 20 mA Max
Open-Circuit Fail-Safe Design
Pin Compatible With SN75173 andAM26LS32

Supply voltage range, V_CC (see Note 1)  . . . . . . . . . . . . . . . . . . . . . . . .0.3 V to 7 V
Input voltage, V_I (A or B inputs)  . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±25 V
Differential input voltage, V_ID (see Note 2)  .  . . . . . . . . . . . . . . . . . . . . . . . . . ±25 V
Voltage range at Y, G, G  . . . . . . . . . . . . . . .. . . . . . . . . .  . . . .0.3 V to VCC + 0.5 V
Continuous total dissipation . . . . . . . . .. . . . . . . . . . . . .See Dissipation Rating Table
Operating free-air temperature range, T_A: SN65LBC173  . . . . . . . . . . .40 to 85
                                                                   SN75LBC173  . . . . . .. . . . . . . .0 to 70
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65to 150
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds  . . . . . . . . . . . .260

The SN65LBC173 and SN75LBC173 are monolithic quadruple differential line receivers with 3-state outputs.Both are designed to meet the requirements of the ANSI standards EIA/TIA-422-B, EIA/TIA-423-B, RS-485,and ITU Recommendations V.10 and V.11. The SN65LBC173 and SN75LBC173 are optimized for balanced multipoint bus transmissionat data rates up to and exceeding 10 million bits per second. The four receivers share two ORed enable inputs,one active when high, the other active when low.

Each receiver of SN65LBC173 and SN75LBC173 features high input impedance, input hysteresis for increased noise immunity, and inputsensitivity of ±200 mV over a common-mode input voltage range of 12 V to 7 V. Fail-safe design ensures thatif the inputs are open circuited, the output of SN65LBC173 and SN75LBC173 is always high. Both devices are designed using the Texas Instrumentsproprietary LinBiCMOSE technology that provides low power consumption, high switching speeds, androbustness.

These devices offer optimum performance when used with the SN75LBC172 or SN75LBC174 quadruple linedrivers. The SN65LBC173 and SN75LBC173 are available in the 16-pin DIP (N) and SOIC (D) packages.

The SN65LBC173 is characterized over the industrial temperature range of 40 to 85. The SN75LBC173is characterized for operation over the commercial temperature range of 0 to 70.