SN75LBC184P

Drivers, Receivers, Transceivers Overview

The SN75LBC184P is a Texas Instruments RS-485 half-duplex differential bus transceiver designed for reliable communication in electrically noisy environments. It operates on a single 5V supply with a voltage range of 4.75 V to 5.25 V and supports data rates up to 250 kbps. The device features integrated transient voltage suppression, providing ESD protection exceeding ±30 kV (contact) and ±15 kV (air gap), along with 400 W peak surge protection. Utilizing a 1/4 unit load design, it allows up to 128 nodes on the bus. Packaged in an 8-pin PDIP (DIP-8) format, it functions within a commercial temperature range of 0°C to 70°C.

Drivers, Receivers, Transceivers Feature Summary

• Integrated high-energy transient voltage suppression protects against severe electrical noise and surges without external components.
• Robust ESD protection capabilities exceed industry standards for both contact and air-gap discharges.
• 1/4 unit load receiver design enables connection of up to 128 devices to a single bus line.
• Controlled driver output slew rate facilitates longer cable branch lengths and reduces signal reflections.

Drivers, Receivers, Transceivers Applications

• Industrial network communication systems
• Metering infrastructure interfaces
• Motor control applications

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type upon ordering, as the SN75LBC184 series includes both through-hole PDIP and surface-mount SOIC variants. Confirm that the procurement matches the required 'P' suffix for the DIP-8 package. Ensure the component meets the specified commercial temperature range requirements for the intended deployment environment.

Drivers, Receivers, Transceivers Selection Notes

Select this component when robust transient immunity is critical for RS-485 networks. It serves as a pin-compatible replacement for older designs using the SN75176 but offers superior noise protection. Choose this part if the application requires supporting up to 128 nodes while maintaining signal integrity in high-interference settings.

Drivers, Receivers, Transceivers Part Context

The SN75LBC184P belongs to the SN75LBC184 family of differential bus transceivers from Texas Instruments. This series is engineered to meet TIA/EIA-485 and ISO/IEC 8482 standards. The 'P' designation specifically identifies the 8-pin plastic dual in-line package variant within the broader product line.

Drivers, Receivers, Transceivers Replacement Considerations

The SN75LBC184P is pin-compatible with the SN75176. For industrial temperature ranges, consider the SN65LBC184P, which shares similar functionality but operates across a wider thermal spectrum.