Z53C8003VSG

Overview

The Z53C8003VSG is a CMOS SCSI interface integrated circuit manufactured by Zilog, belonging to the Z53C80 series. It functions as a PCI SCSI controller with a data transfer rate of 3 MB/sec. The device operates within a supply voltage range of 4.75 V to 5.25 V and draws a working power current of 15 mA. It supports an operating temperature range from 0°C to +70°C. The component is housed in a 44-PLCC (Plastic Leaded Chip Carrier) package with J-leads, designed for surface mount installation. It has a moisture sensitivity level of MSL 3 (168 hours).

Feature Summary

• Implements SCSI I protocol for high-speed data transfer.
• Integrates termination functionality with eight termination points.
• Designed for PCI bus interface applications.

Applications

• PCI-based SCSI controller implementations.
• Computer peripheral interface systems requiring SCSI connectivity.
• Data storage subsystems utilizing SCSI protocols.

Procurement Notes

This component is officially discontinued and no longer in production. Verification of availability should focus on surplus or secondary market sources rather than direct manufacturer distribution. Buyers must confirm the authenticity of the part number and check for any product change notifications or end-of-life documentation prior to acquisition. Ensure that the specific suffix matches the required package and environmental specifications.

Selection Notes

Select this component only if legacy support for the Z53C80 series is required for existing designs. Verify compatibility with the target PCI bus architecture and SCSI protocol version. Consider the 44-PLCC package constraints during PCB layout. Due to its discontinued status, evaluate long-term supply chain risks and potential obsolescence impacts on maintenance schedules.

Part Context

The Z53C8003VSG is part of the Z53C80 family of SCSI interface controllers produced by Zilog. This series was designed to provide efficient SCSI connectivity for personal computers and workstations. The 'VSG' suffix typically denotes the commercial temperature grade and PLCC packaging variant within the product line.

Replacement Considerations

As the Z53C8003VSG is discontinued, no direct official substitutes are listed in the provided documentation. Designers may need to consider newer SCSI controllers from other manufacturers or adapter solutions, though pin-to-pin replacements are not confirmed in the source material.