ST1480ACDR/US

Drivers, Receivers, Transceivers Overview

The ST1480ACDR/US is a half-duplex RS-485 and RS-422 transceiver manufactured by STMicroelectronics. It integrates one driver and one receiver in an 8-pin SOIC package. The device operates from a single 3.3 V supply without requiring a charge pump. It guarantees data rates of at least 12 Mbps, with propagation delays up to 50 ns. Electrical specifications include a minimum supply voltage of 3 V and a maximum of 3.6 V. The unit draws 2.2 mA during operation and supports up to 64 transceivers on the bus.

Drivers, Receivers, Transceivers Feature Summary

• Provides ±15 kV ESD protection via Human Body Model and ±8 kV IEC 1000-4-2 contact discharge
• Features true fail-safe inputs that guarantee a logic high output when inputs are open, shorted, or lack a signal
• Includes thermal shutdown circuitry and current limiting to protect against excessive power dissipation and driver overload

Drivers, Receivers, Transceivers Applications

• RS-485 communication networks
• RS-422 communication networks
• Industrial control systems requiring robust bus connectivity

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix (ACDR vs US) to confirm the temperature range and packaging format. The ACDR variant typically denotes the commercial grade operating range of 0°C to 70°C in an SOIC-8 reel or cut tape. Confirm RoHS compliance status through official datasheets before finalizing procurement orders.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring low-power 3.3 V operation with high noise immunity. Ensure the system design accommodates the industry-standard 75176 pinout. Verify that the required data rate does not exceed the guaranteed 12 Mbps limit under the specific load capacitance conditions defined in the electrical characteristics table.

Drivers, Receivers, Transceivers Part Context

This part belongs to the ST1480Ax series of low-power transceivers designed for RS-485 and RS-422 standards. The 'AC' designation indicates the commercial temperature range, while 'DR' specifies the surface-mount SOIC-8 packaging. The 'US' suffix often denotes the same functional device but potentially with different regional certification or specific manufacturing lot attributes.

Drivers, Receivers, Transceivers Replacement Considerations

Compatible substitutes include the SN75176 and MAX1480. These components share the standard 75176 pinout and similar electrical performance profiles for RS-485/RS-422 applications. Verify pin compatibility and voltage levels before swapping.