SN75LBC184DR-JSM

SN75LBC184 is a high-speed transceiver for RS-485/RS-422 half-duplex communication, integrating one driver and one receiver. It features ±15kV human body model ESD protection and a fail-safe circuit that ensures a logic-high output at the receiver when the receiver input is open or shorted. If all drivers connected to a terminated bus are disabled (high-impedance), the receiver will output a logic high. The SN75LBC184 incorporates a slew-rate-limited driver to reduce EMI and reflections caused by improperly terminated cables, enabling error-free data transmission at up to 500Kbps. In addition, the SN75LBC184 receiver features 1/8 unit load input impedance, allowing up to 256 transceivers to be connected on the bus, and operates over a temperature range of -20°C to 85°C.

Applications

• Industrial Control
• Electric, Water, and Gas Meters
• EMI-sensitive Transceiver Applications
• Security Systems
• Lighting Systems
• Instrumentation

Key features

• Low-current shutdown mode
• Industry-standard SOP-8 package
• Up to 256 transceivers allowed on the bus
• True fail-safe receiver compatible with EIA/TIA-485
• Robust slew rate control for error-free data transmission
• Enhanced ESD protection for RS-485/RS-422 A/B pins
• HBM: ±15kV
• IEC 61000-4-2: Contact discharge ±20kV, Air discharge ±20kV