TL2218-285PW-A

Overview

The TL2218-285PW-A is a current-mode SCSI terminator manufactured by Texas Instruments. It supports nine signal lines and operates within a supply voltage range of 3.5 V to 5.5 V. The device is housed in a 20-pin TSSOP package. It requires an operating supply current of 228 mA and functions at minimum temperatures starting from 0°C. This component serves as a signal terminator for SCSI interfaces, providing termination functionality through its dedicated pin configuration.

Feature Summary

• Implements current-mode termination for SCSI signal integrity
• Supports nine distinct signal lines within a single integrated circuit
• Operates with standard 3.5 V to 5.5 V power supplies

Applications

• SCSI interface signal termination
• High-speed data bus termination
• Computer peripheral connectivity systems

Procurement Notes

Verify the specific suffix 'A' against official Texas Instruments documentation to confirm active status and availability. Distributor listings may indicate inactive or obsolete status for this variant. Confirm RoHS compliance and packaging details directly with the manufacturer or authorized suppliers before procurement. Ensure the part number matches the exact required specification for your design.

Selection Notes

Select this component when a current-mode SCSI terminator is required for nine signal lines. Ensure the system voltage aligns with the 3.5 V to 5.5 V operating range. Consider the 20-TSSOP package size for PCB layout constraints. Verify that the 228 mA supply current requirement fits within the available power budget of the target application.

Part Context

This part belongs to the Excalibur family of SCSI terminators from Texas Instruments. It provides a compact solution for terminating SCSI buses compared to discrete resistor networks. The device integrates multiple termination functions into a single package, reducing board space and simplifying assembly for high-density electronic designs requiring reliable SCSI signal termination.

Replacement Considerations

Consult official substitution guides for compatible SCSI terminators. Generic replacements may differ in pinout or electrical characteristics. Verify compatibility with existing PCB footprints and signal requirements before swapping components.