QS7203-80JR

FIFOs Memory Overview

The QS7203-80JR is an asynchronous FIFO memory device manufactured by Quality Semiconductor Inc. It features a memory organization of 2K x 9 bits, providing a total density of 18432 bits. The component supports a maximum access time of 80 ns with a cycle time of 25 ns. It operates within a supply voltage range of 4.5 V to 5.5 V and utilizes CMOS technology. The device 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 capability for data integrity management
• Three-state outputs for bus interfacing compatibility

FIFOs Memory Applications

• Data buffering between asynchronous logic systems
• Interface bridging in parallel communication architectures
• Temporary storage in high-speed digital signal processing chains

FIFOs Memory Procurement Notes

Verify the specific suffix 'JR' against official Quality Semiconductor documentation to confirm package type and temperature rating. Ensure the source provides valid datasheet references for the 80ns speed grade. Confirm that the manufacturer designation aligns with current corporate records, as Quality Semiconductor assets may be held by other entities such as Rochester Electronics.

FIFOs Memory Selection Notes

Select this component when a 2Kx9 depth is required with 80ns latency. The PQCC32 package dictates board layout constraints. Verify that the 4.5V to 5.5V operating range matches the system power rails. Consider the asynchronous nature if clock domain crossing is necessary without synchronization overhead.

FIFOs Memory Part Context

This part belongs to the QS7203 series of asynchronous FIFOs from Quality Semiconductor. Variants in this series differ primarily in access speed and package style. The QS7203-80JR specifically denotes the 80 nanosecond access time variant in a plastic quad chip carrier format, distinct from ceramic or faster speed grades like the 15ns version.

FIFOs Memory Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided reference material. Cross-referencing with similar 2Kx9 asynchronous FIFOs requires consulting official manufacturer substitution guides.