7204L35J

Overview

The Renesas Electronics Corporation 7204L35J is an asynchronous FIFO memory device belonging to the 7204 series. It features a storage organization of 4K x 9 bits, providing a total capacity of 36 kilobits. The component operates with a maximum clock frequency of 22.22 MHz and offers a typical access time of 35 nanoseconds. It is designed for unidirectional data transfer using CMOS parallel interface technology. The device supports a supply voltage range from 4.5 V to 5.5 V. It is housed in a 32-pin PLCC package.

Feature Summary

• Asynchronous operation allows independent read and write clock domains for flexible system integration.
• CMOS parallel interface provides standard bidirectional data bus connectivity.
• Unidirectional data flow architecture simplifies buffer management in signal processing chains.

Applications

• Data buffering between microprocessors and peripheral devices
• Interface bridging between components operating at different clock speeds
• Signal processing pipeline staging

Procurement Notes

Verify current availability status as this component may be discontinued or subject to limited supply constraints. Confirm RoHS compliance requirements against specific project standards, noting that older revisions may not meet current environmental directives. Ensure proper handling procedures are followed due to moisture sensitivity classification. Validate pin compatibility with existing PCB footprints before procurement.

Selection Notes

Select this component when a moderate depth FIFO with 9-bit word width is required for asynchronous data buffering. Consider the 35 ns access time and 22.22 MHz maximum frequency limits against system timing requirements. Evaluate the 4.5 V to 5.5 V supply voltage range for compatibility with existing power rails. Compare package options if surface mount PLCC-32 is unsuitable for the target assembly process.

Part Context

The 7204L35J is part of the broader 7204 family of asynchronous FIFOs manufactured by Renesas Electronics. This series typically includes variants with different access times and clock frequencies, such as the 15 ns and 25 ns versions. The 'L' suffix often denotes low-power CMOS technology within this product line. These devices were commonly used in legacy industrial and telecommunications equipment requiring reliable data buffering.

Replacement Considerations

Publicly confirmed substitute part numbers for the 7204L35J are not available in the provided documentation. Verify cross-reference lists from official Renesas distributors for potential compatible alternatives with matching electrical specifications and pinouts.