Transceptor Sn75lbc184d Rs485 5v Transceiver Soic8 Itytarg

Features for the SN75LBC184

• Integrated Transient Voltage Suppression
• Controlled Driver Output-Voltage Slew Rates
• Allow Longer Cable Stub Lengths
• 250-kbps in Electrically Noisy Environments
• Open-Circuit Fail-Safe Receiver Design
• 1/4 Unit Load Allows for 128 Devices Connected
  on Bus
• Thermal Shutdown Protection
• Power-Up and Power-Down Glitch Protection
• Low Disabled Supply Current 
• Pin Compatible With SN75176

Description for the SN75LBC184

The SN75LBC184 and SN65LBC184 devices are differential data line transceivers in the trade-standard footprint of the SN75176 with built-in protection against high-energy noise transients. This feature provides a substantial increase in reliability for better immunity to noise transients coupled to the data cable over most existing devices. Use of these circuits provides a reliable low-cost direct-coupled (with no isolation transformer) data line interface without requiring any external components.

The SN75LBC184 and SN65LBC184 can withstand overvoltage transients of 400-W peak (typical). The conventional combination wave called out in IEC 61000-4-5 simulates the overvoltage transient and models a unidirectional surge caused by overvoltages from switching and secondary lightning transients.