7203L50J8

Overview

The Renesas Electronics Corporation 7203L50J8 is an asynchronous FIFO memory integrated circuit with a storage capacity of 18K bits, organized as 2K words by 9 bits. It features a unidirectional bus architecture and supports a maximum clock frequency of 15 MHz with a typical access time of 50 ns. The device operates within a supply voltage range of 4.5 V to 5.5 V and has a maximum supply current of 120 mA. It is housed in a 32-lead PLCC package (32-LCC J-leads) designed for surface-mount installation.

Feature Summary

• Asynchronous operation allowing simultaneous independent read and write cycles
• Retransmit capability enabling reset of the read pointer to its initial position
• Status flags including Full and Empty indicators to prevent data overflow and underflow

Applications

• Multiprocessing systems requiring data buffering
• Rate matching applications between different speed domains
• Data acquisition systems needing temporary storage

Procurement Notes

This component is officially discontinued and no longer manufactured by Renesas Electronics. Verification of availability should focus on obsolete stock or authorized distributors holding remaining inventory. Buyers must confirm the specific suffix J8 indicates tape-and-reel packaging. Cross-reference official datasheets for pin compatibility before considering replacement options.

Selection Notes

Select this part only if legacy system compatibility with the IDT 7203 series is required. Verify that the 50 ns access time and 15 MHz maximum frequency meet system timing requirements. Ensure the design accommodates the 32-lead PLCC footprint. Consider the discontinuation status when planning long-term production runs.

Part Context

The 7203L50J8 belongs to the Renesas 7200 series of CMOS asynchronous FIFOs. This family provides high-speed data buffering solutions for digital signal processing and communication interfaces. The device utilizes standard TTL-compatible I/O levels and offers expandability in word depth and bit width through parallel connection capabilities.

Replacement Considerations

Renesas lists the 7203L12JG8 as an upgrade substitute. Verify functional equivalence regarding pinout and electrical characteristics before implementation.