QS7201-50JR

FIFOs Memory Overview

The QS7201-50JR is an asynchronous FIFO memory integrated circuit manufactured by Quality Semiconductor. It features a memory organization of 512 words by 9 bits, providing a total density of 4608 bits. The device supports a maximum access time of 50 nanoseconds with a cycle time of approximately 66.7 nanoseconds at 15 MHz operation. 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 read and write operations allow independent clock domains for data input and output.
• CMOS technology ensures low power consumption and high noise immunity.
• Three-state outputs facilitate easy interfacing with standard digital buses.

FIFOs Memory Applications

• Data buffering between microprocessors and peripheral devices
• Interface bridging between different clock domains in embedded systems
• Temporary storage in high-speed data acquisition systems

FIFOs Memory Procurement Notes

Verify the specific suffix 'JR' confirms the plastic quad chip carrier package and 50ns speed grade. Confirm manufacturer origin as Quality Semiconductor or authorized successor entities due to historical brand transitions. Ensure RoHS compliance status matches current manufacturing batches if required by project specifications.

FIFOs Memory Selection Notes

Select this component when asynchronous decoupling is required between subsystems operating at different clock rates. The 512x9 organization suits applications needing moderate depth with 9-bit word widths. Verify that the 50ns access time meets the system timing requirements and that the PQCC32 package fits the available PCB footprint constraints.

FIFOs Memory Part Context

This part belongs to the QS7201 family of asynchronous FIFOs from Quality Semiconductor. The family includes variants with different access times such as 35ns and 80ns, and various package options including ceramic and plastic carriers. The QS7201 series is designed for general-purpose memory buffering in industrial and commercial electronic applications.

FIFOs Memory Replacement Considerations

Compatible alternatives include the QS7201-35JR for faster performance and the QS7201-80JR for slower, potentially lower-cost requirements. Cross-reference with other manufacturers offering pin-compatible 512x9 asynchronous FIFOs in PQCC32 packages if sourcing availability is constrained.