ST75C176BN

Drivers, Receivers, Transceivers Overview

The ST75C176BN is a low-power transceiver designed for RS-485 and RS-422 communication applications. It integrates one driver and one receiver, operating from a single 5V supply. The device draws a typical quiescent current of 300µA when unloaded or fully loaded with disabled drivers. It supports bi-directional data communications on multipoint bus transmission lines for half-duplex applications. Key electrical characteristics include a common mode input voltage range of -7V to 12V, 30ns propagation delays, and 5ns skew. The driver features short-circuit current limiting and thermal shutdown protection.

Drivers, Receivers, Transceivers Feature Summary

• Low quiescent current consumption for power efficiency
• Fail-safe receiver guarantees logic-high output if input is open circuit
• Driver maintains high impedance in 3-state or with power off
• Built-in thermal shutdown and current limiting for overload protection

Drivers, Receivers, Transceivers Applications

• Bi-directional data communications on multipoint bus transmission lines
• Half-duplex applications using RS-485 interface
• Systems requiring up to 32 transceivers on the bus

Drivers, Receivers, Transceivers Procurement Notes

Verify the package type matches the required board layout, as the BN suffix typically indicates a DIP package. Confirm that the 5V single supply requirement aligns with the system design. Ensure the -40°C to 85°C operating temperature range meets environmental specifications. Check RoHS compliance status if restricted substances are a concern for the target market.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring low power dissipation in RS-485/RS-422 networks. It is suitable where a single 5V supply is available. Consider the 30ns propagation delay for signal integrity requirements. The fail-safe feature is critical for systems needing defined states during idle or fault conditions. Verify that the 32-node bus limit fits the network topology.

Drivers, Receivers, Transceivers Part Context

The ST75C176BN belongs to the ST75C176 series of low-power RS-485/RS-422 transceivers manufactured by STMicroelectronics. This series utilizes BiCMOS technology to achieve low power consumption while maintaining robust performance. The BN variant specifically denotes the Dual In-line Package (DIP) configuration, distinguishing it from surface-mount options like the BD (SOIC) version within the same functional family.

Drivers, Receivers, Transceivers Replacement Considerations

Compatible substitutes include other ST75C176 variants such as ST75C176BD or ST75C176B, provided the package difference is acceptable. Cross-reference with generic RS-485 transceivers only if pin compatibility and electrical parameters match exactly.