7203L15JI8

Overview

The Renesas Electronics Corporation 7203L15JI8 is an asynchronous FIFO memory integrated circuit designed for high-speed data buffering applications. It features a storage capacity of 18K bits, organized as 2K words by 9 bits. The device supports a maximum data rate of 40MHz with a typical access time of 15ns. It operates on a single 5V power supply within the range of 4.5V to 5.5V and draws a maximum supply current of 120mA. The component utilizes a unidirectional bus architecture and is housed in a 32-PLCC surface-mount package measuring 14x11.46mm. It functions reliably across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Asynchronous operation enabling simultaneous independent read and write cycles without clock synchronization constraints
• Unidirectional data flow architecture optimized for specific buffer control logic requirements
• Retransmit capability allowing reset of the read pointer to its initial position upon command
• Status flag outputs including Empty, Half-Full, and Full indicators to manage data overflow and underflow conditions

Applications

• Multiprocessing systems requiring temporary data storage between processors
• Rate matching buffers for converting data streams between different clock domains
• High-speed interface bridging in communication equipment
• Digital signal processing pipelines needing low-latency data staging

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm package integrity and pin alignment against the 32-PLCC specification. Check datasheet revisions for any parameter updates prior to integration. Ensure voltage levels match the 4.5V to 5.5V operating range. Validate thermal performance within the specified industrial temperature limits during system design.

Selection Notes

Select this component when unidirectional asynchronous buffering is required at 40MHz speeds. Consider the 2K x 9 organization for word-aligned data paths. Evaluate the 32-PLCC package for surface-mount compatibility. Compare against synchronous alternatives if clock domain crossing is necessary. Assess power consumption requirements against the 120mA maximum draw.

Part Context

This part belongs to the Renesas 7200 series of asynchronous FIFO memories. It shares functional similarities with other devices in the family but differs in specific speed grades and packaging options. The 7203 variant specifically targets 5V logic interfaces with TTL-compatible I/O levels. It serves as a legacy solution for designs predating modern synchronous FIFO implementations.

Replacement Considerations

Public confirmed substitute part numbers are not available for this discontinued component. Designers should evaluate newer asynchronous FIFO families or synchronous alternatives with compatible pinouts. Verify electrical parameters such as access time and voltage ranges before substituting. Consult manufacturer documentation for recommended cross-reference strategies.