7205L12J

Overview

The Renesas Electronics Corporation 7205L12J is an asynchronous FIFO memory integrated circuit with a storage capacity of 72K bits, organized as 8K words by 9 bits. It features a unidirectional bus architecture and supports simultaneous read and write operations. The device operates within a supply voltage range of 4.5 V to 5.5 V and has a maximum access time of 12 ns. It is housed in a 32-pin PLCC package and functions at data rates up to 50 MHz.

Feature Summary

• Supports asynchronous and simultaneous read/write operations for multiprocessing applications
• Includes auto-retransmit capability allowing reset of the read pointer to its initial position
• Utilizes Full and Empty status flags to prevent data overflow and underflow conditions

Applications

• Multiprocessing systems requiring rate buffering
• Data acquisition systems needing temporary storage
• Digital signal processing interfaces

Procurement Notes

Verify component authenticity through authorized distributors or official Renesas channels due to potential availability constraints. Confirm package integrity and pin alignment upon receipt. Check for specific suffix variations that may indicate different temperature ranges or packaging types. Ensure compliance with relevant environmental regulations such as RoHS status before integration into final assemblies.

Selection Notes

Select this component when designing systems requiring high-speed asynchronous data buffering between devices operating at different clock domains. The 8K x 9 organization suits applications needing moderate depth with standard word widths. Consider the 12 ns access speed for high-frequency data transfer requirements. Evaluate the PLCC package suitability for the target PCB layout and thermal management needs.

Part Context

This part belongs to the 7205 series of asynchronous FIFO memories from Renesas. It shares functional compatibility with the broader 720X family, offering similar interface characteristics and operational modes. The series is designed for applications demanding reliable first-in/first-out data handling with minimal latency and robust flow control mechanisms.

Replacement Considerations

Consult official Renesas documentation for verified substitute part numbers. Cross-reference specifications such as access time, package type, and voltage range to ensure compatibility. Verify if alternative components maintain the same unidirectional bus direction and retransmit capabilities required by the design.