QS72241-15JR

FIFOs Memory Overview

The QS72241-15JR is a synchronous first-in, first-out (FIFO) memory component manufactured by Quality Semiconductor. It features a memory organization of 4K words by 9 bits, providing a total capacity of 36 kilobits. The device supports a maximum access time of 10 nanoseconds and operates within a supply voltage range of 4.5 to 5.5 volts. It utilizes a 32-pin plastic quad flat pack (PQFP) or chip carrier package with standard three-state outputs. The component includes programmable flags for status monitoring and is designed for parallel data transfer applications in high-speed digital systems.

FIFOs Memory Feature Summary

• Synchronous FIFO architecture with dedicated clock input for precise data synchronization
• Programmable full and empty flag outputs for real-time buffer status monitoring
• Three-state logic outputs enabling easy integration into multi-drop bus structures
• CMOS technology ensuring low power consumption and high noise immunity

FIFOs Memory Applications

• Data buffering between asynchronous system domains
• Interface bridging in high-speed digital signal processing chains
• Temporary storage in communication protocol converters
• Clock domain crossing solutions in embedded control systems

FIFOs Memory Procurement Notes

Verify the specific package variant and manufacturer revision when sourcing, as legacy components may have multiple packaging options. Confirm RoHS compliance status if required for modern assembly processes. Ensure the supplier provides original manufacturer documentation to validate authenticity. Check for obsolescence notices from Quality Semiconductor or successor entities before finalizing procurement plans.

FIFOs Memory Selection Notes

Select this component when a synchronous interface is required for reliable data handshaking between clocked subsystems. The 9-bit width accommodates standard byte-plus-parity configurations common in serial communication interfaces. Consider the 10ns access speed against system clock requirements to ensure timing margins are met. Evaluate the 32-pin footprint constraints against available board space compared to alternative pin-count packages.

FIFOs Memory Part Context

This part belongs to the QS7224x series of synchronous FIFOs from Quality Semiconductor, which also includes variants like the QS72241-12 and QS72241-15. These devices share similar architectural features but differ in access speeds and organizational densities. The series was designed to provide flexible memory solutions for industrial and commercial applications requiring deterministic data latency.

FIFOs Memory Replacement Considerations

Direct replacements include other 4Kx9 synchronous FIFOs with compatible pinouts and electrical characteristics. Verify that substitute parts maintain the same 5V logic levels and synchronous operation mode. Cross-reference pin assignments carefully, as some generic FIFOs may have different control signal mappings.