QS72235-20J

Specialized ICS Overview

The QS72235-20J is a high-speed synchronous First-In-First-Out (FIFO) memory device manufactured by Quality Semiconductor. It features a storage capacity of 2K x 18 bits, providing 36 kilobits of data buffering capability. The component operates with a maximum clock frequency of 20 nanoseconds, ensuring rapid data throughput for demanding applications. It is housed in a PLCC-68 package and supports a supply voltage range from 4.5 V to 5.5 V. The device includes dedicated read and write control inputs for precise data management.

Specialized ICS Feature Summary

• Synchronous FIFO architecture for efficient data buffering
• High-speed operation with 20ns access time
• 18-bit wide data path for specialized word processing
• Dedicated control inputs for independent read and write operations

Specialized ICS Applications

• Data buffering in high-speed communication interfaces
• Clock domain crossing between asynchronous systems
• Temporary storage in digital signal processing pipelines
• Buffering in video or audio data transmission systems

Specialized ICS Procurement Notes

Verify the manufacturer designation carefully, as Quality Semiconductor assets were acquired by IDT and subsequently Renesas. Ensure the part number matches current availability, as older revisions may be discontinued. Confirm RoHS compliance status and moisture sensitivity levels prior to integration into production lines.

Specialized ICS Selection Notes

Select this component when an 18-bit data width is required for specific parallel interface applications. The synchronous nature makes it suitable for systems requiring precise timing alignment between data transfer stages. Consider the PLCC-68 package constraints for PCB layout and thermal management requirements.

Specialized ICS Part Context

This part belongs to the 72235 series of synchronous FIFOs, which are designed for high-performance data handling. The series typically offers various speed grades and package options to accommodate different system timing and form factor requirements within industrial and commercial electronic designs.

Specialized ICS Replacement Considerations

Direct substitutes include the IDT72235L20J and Renesas equivalents within the same family. Verify pin compatibility and electrical specifications before substitution. Alternative manufacturers may offer similar specifications under different part numbering schemes.