DS36954M

Overview

The DS36954M is a low-power quad EIA-485 differential bus transceiver designed for high-speed, parallel, multipoint I/O bus applications. It integrates four transceivers in a compact 20-pin SOIC package (DW), providing high integration and a small PC board footprint. The device meets the EIA-485 standard for multipoint bus transmission and features greater than 60 mA source/sink currents. Propagation delay skew between devices is specified to aid in parallel interface designs, allowing five devices to implement a complete SCSI initiator or target interface. Three transceivers are pinned out for data bus connections, while the fourth serves as a control bus transceiver with individual enables.

Feature Summary

• Pinout optimized for SCSI interface applications
• Compact 20-pin surface mount PLCC or SOIC package
• Greater than 60 mA source/sink currents
• Thermal shutdown protection included

Applications

• High-speed parallel multipoint I/O bus applications
• SCSI initiator or target interface implementation
• Control bus transceiver functions within parallel interfaces

Procurement Notes

Verify current production status and availability directly with Texas Instruments or authorized distributors before design finalization. Confirm that the specific ordering suffix matches the required packaging and environmental compliance specifications. Review the latest datasheet revision history for any parameter updates or pinout changes relevant to the manufacturing batch.

Selection Notes

Select this component when designing systems requiring quad differential bus transceivers with SCSI-compatible pinouts. Ensure the operating temperature range of 0°C to +70°C aligns with the system environment. Verify that the 5V supply voltage and EIA-485 standard compliance meet the network requirements. Consider the thermal dissipation capabilities of the SOIC package under maximum load conditions.

Part Context

The DS36954 is part of Texas Instruments' family of low-power differential bus transceivers. It is specifically engineered for parallel interface applications where multiple transceivers must operate with minimal skew. The device supports both EIA-422 and EIA-485 standards, offering flexibility in bus topology and termination configurations for robust data transmission in noisy environments.

Replacement Considerations

DS36954MX/NOPB: Active alternative in tape-and-reel packaging.