QS7201-25JR

FIFOs Memory Overview

The QS7201-25JR is an asynchronous FIFO manufactured by Quality Semiconductor Inc. It features a memory organization of 1K x 9 bits, providing a total density of 9216 bits. The device supports a maximum access time of 25 ns with a cycle time of 35 ns. It operates within a supply voltage range of 4.5 V to 5.5 V and utilizes CMOS technology. The component is housed in a 32-pin Plastic Quad Chip Carrier (PQCC) package.

FIFOs Memory Feature Summary

• Asynchronous operation mode for independent read and write clock domains
• Retransmit feature capability for data integrity management
• Three-state outputs for bus isolation

FIFOs Memory Applications

• Data buffering between high-speed processors and slower peripherals
• Interface bridging between different logic families or voltage levels
• Temporary storage in digital signal processing pipelines

FIFOs Memory Procurement Notes

Verify the specific suffix 'JR' against official Quality Semiconductor documentation to confirm package material and temperature rating. Ensure compatibility with existing board layouts for the 32-pin PQCC form factor. Confirm that the 25 ns speed grade meets system timing requirements before procurement.

FIFOs Memory Selection Notes

Select this component when a 1K x 9 depth is required with fast 25 ns latency. Compare against the QS7201-80J if lower speed but potentially different thermal characteristics are acceptable. Verify pinout compatibility with existing designs using the 32-pin chip carrier footprint.

FIFOs Memory Part Context

This part belongs to the QS7201 series of asynchronous FIFOs from Quality Semiconductor. It shares architectural similarities with the QS7201-80J but offers faster performance. The series is designed for general-purpose data buffering applications requiring reliable asynchronous transfer capabilities.

FIFOs Memory Replacement Considerations

The QS7201-80J serves as a slower alternative within the same family. Cross-reference datasheets to ensure functional equivalence regarding control signals and output states before substitution.