QS72221-20JR

FIFOs Memory Overview

The QS72221-20JR is a synchronous FIFO memory integrated circuit manufactured by Quality Semiconductor. It provides a total memory capacity of 9K bits, organized as 1K words by 9 bits. The device features a standard access time of 12 nanoseconds. It is designed for high-speed data buffering applications requiring synchronous operation. The component is supplied in a bulk packaging format and is currently classified as an obsolete product within the manufacturer's portfolio.

FIFOs Memory Feature Summary

• Synchronous FIFO architecture for reliable data buffering
• Standard output type for general logic interfacing
• Compact 1K x 9 bit memory organization

FIFOs Memory Applications

• High-speed data buffering between asynchronous systems
• Interface bridging in digital logic circuits
• Temporary storage in communication protocols

FIFOs Memory Procurement Notes

Verify component authenticity due to obsolete status. Confirm package integrity as bulk packaging may lack protective casing. Check datasheet revisions for pinout consistency with legacy designs. Ensure supply chain sources provide traceable documentation. Validate electrical specifications against original Quality Semiconductor standards before integration.

FIFOs Memory Selection Notes

Select this part only if synchronous FIFO functionality with 12ns access time is required. Consider the 1K x 9 bit depth for specific buffer size needs. Evaluate compatibility with existing logic voltage levels. Assess end-of-life implications for long-term production stability. Compare against modern alternatives if new design implementation is planned.

FIFOs Memory Part Context

This component belongs to the FIFO memory IC category from Quality Semiconductor. It serves as a specialized storage element for digital systems. The synchronous nature distinguishes it from asynchronous counterparts. Its 12ns speed class places it in a specific performance tier for its generation. The 9-bit width allows for parity or extended data handling.

FIFOs Memory Replacement Considerations

Public confirmed substitute part numbers are not available in verified documentation. Due to the obsolete status, direct replacements may require functional equivalence analysis. Consult manufacturer archives for potential successor series. Verify pin-to-pin compatibility if substituting with similar synchronous FIFOs.