DS2120E+T&R

Overview

The DS2120E+T&R is a SCSI interface integrated circuit manufactured by Analog Devices under the Maxim Integrated brand. It belongs to the DS2120E series and functions as a SCSI Interface IC within the broader category of Interface ICs. The component is supplied in a tape and reel packaging format, indicated by the +T&R suffix. The device is currently listed with a lifecycle status of discontinued or obsolete. It is designed for serial communication applications requiring SCSI protocol support.

Feature Summary

• Provides dedicated hardware support for SCSI bus signaling and protocol handling
• Integrates necessary interface logic for connecting host systems to SCSI peripherals
• Utilizes surface-mount tape and reel packaging for automated assembly processes

Applications

• Host bus adapter designs requiring SCSI connectivity
• Peripheral controllers interfacing with SCSI storage devices
• Legacy computer system architectures utilizing SCSI standards

Procurement Notes

This component is classified as obsolete or discontinued by the manufacturer. Availability is restricted to surplus stock from third-party distributors. Verification of authenticity is critical due to the high risk of counterfeit parts in the secondary market for legacy components. Buyers should confirm the specific manufacturing date code and physical condition before acquisition. Supply chain reliability cannot be guaranteed through official channels.

Selection Notes

Engineers replacing this part must evaluate compatibility with existing SCSI bus specifications and voltage levels. Since the original component is discontinued, alternative solutions may require level shifters or bridge circuits if direct pin-compatible substitutes are unavailable. Design reviews should focus on signal integrity requirements specific to the SCSI standard being implemented. Legacy system maintenance often necessitates sourcing exact replacements rather than functional equivalents.

Part Context

The DS2120E is part of a family of SCSI interface chips produced by Maxim Integrated, now part of Analog Devices. These components were widely used in the 1990s and early 2000s for server and workstation storage interfaces. The +T&R designation specifically denotes the tape and reel packaging variant, which differs from tube or tray packaging options available for other versions of the same silicon die.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Direct replacements may require evaluating newer SCSI controllers or using interface adapters. Engineers should consult current Analog Devices catalogs for modern alternatives that support legacy SCSI protocols if available.