7205L50J8

Overview

The Renesas Electronics Corporation 7205L50J8 is an asynchronous FIFO memory integrated circuit belonging to the 7200 series. It provides a storage capacity of 72K bits, organized as 8K words by 9 bits per word. The device supports unidirectional data transfer with a maximum access time of 50 nanoseconds and operates at a data rate of up to 15 MHz. It functions within a supply voltage range of 4.5 V to 5.5 V and draws a maximum supply current of 120 mA. The component is housed in a 32-PLCC package with J-leads, designed for surface-mount installation. It operates reliably across a commercial temperature range from 0°C to 70°C.

Feature Summary

• Supports asynchronous and simultaneous read and write operations for independent clock domains
• Includes auto-retransmit capability allowing read pointer reset via low pulse on RT pin
• Utilizes Full, Empty, and Half-Full status flags to prevent data overflow and underflow

Applications

• Multiprocessing systems requiring data buffering between processors
• Rate matching buffers for asynchronous data streams
• Interface bridging between devices operating at different clock speeds

Procurement Notes

Verify RoHS compliance status carefully, as documentation indicates non-compliance for this specific part number. Confirm package integrity upon receipt, as moisture sensitivity requires proper handling. Check for discontinuance notices or end-of-life declarations prior to finalizing procurement plans. Ensure supplier documentation matches the exact suffix J8 for PLCC packaging.

Selection Notes

Select this component when a 50 ns access time meets system timing requirements. Choose this part over faster variants if cost optimization is necessary while maintaining 8K x 9 depth. Verify that the 32-pin PLCC footprint aligns with existing PCB layout constraints. Consider thermal dissipation limits given the 120 mA maximum supply current specification.

Part Context

This component belongs to the IDT/Renesas 7205 family of high-speed asynchronous FIFOs. The family offers various speed grades and package options, including PDIP and PLCC configurations. The 7205L50J8 specifically targets applications needing moderate speed performance in a surface-mount form factor. It shares functional compatibility with other members of the 720X series regarding pinout and control logic.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.