| Number of receivers | 1 |
| Number of transmitters | 1 |
| Duplex | Half |
| Supply voltage (Nom) (V) | 5 |
| Signaling rate (Max) (Mbps) | 0.25 |
| IEC 61000-4-2 contact (+/- kV) | 30 |
| Fault protection (V) | -15 to 15 |
| Common mode range | -7 to 12 |
| Number of nodes | 128 |
| Features | IEC ESD protection, Surge protection |
| Isolated | No |
| ICC (Max) (mA) | 25 |
| Rating | Catalog |
| Operating temperature range (C) | 0 to 70 |
- Integrated Transient Voltage Suppression
- ESD Protection for Bus Terminals Exceeds:
±30 kV IEC 61000-4-2, Contact Discharge
±15 kV IEC 61000-4-2, Air-Gap Discharge
±15 kV EIA/JEDEC Human Body Model - Circuit Damage Protection of 400-W Peak
(Typical) Per IEC 61000-4-5 - 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
- Each Transceiver Meets or Exceeds the
Requirements of TIA/EIA-485 (RS-485) and
ISO/IEC 8482:1993(E) Standards - Low Disabled Supply Current 300 μA Maximum
- Pin Compatible With SN75176
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.
