7024S55J

Memory IC Overview

The Renesas Electronics Corporation 7024S55J is a discontinued asynchronous dual-port static random-access memory (SRAM) integrated circuit. It features a storage capacity of 64 kilobits organized as 4K words by 16 bits. The device supports parallel interface operations with a maximum access time and write cycle time of 55 nanoseconds. It operates within a supply voltage range of 4.5V to 5.5V and is designed for commercial temperature environments ranging from 0°C to 70°C. The component is housed in an 84-pin Plastic Leaded Chip Carrier (PLCC) package, measuring 29.31mm x 29.31mm, utilizing surface-mount technology installation.

Memory IC Feature Summary

• Provides independent read/write ports for simultaneous data access without bus contention
• Supports asynchronous operation with fast 55ns access times for high-speed processing
• Utilizes standard parallel interface architecture compatible with legacy system designs

Memory IC Applications

• High-performance embedded systems requiring concurrent data handling
• Industrial control units needing reliable volatile memory storage
• Telecommunications equipment utilizing parallel bus architectures

Memory IC Procurement Notes

This component has reached end-of-life status and is no longer manufactured by Renesas Electronics Corporation. Verification of availability should focus on surplus distributors or secondary market sources rather than official channels. Buyers must confirm the authenticity of the PLCC package and check for RoHS compliance discrepancies, as original specifications may not meet current environmental regulations. Replacement planning is strongly recommended due to discontinuation.

Memory IC Selection Notes

Engineers selecting this part should verify pin compatibility with existing PCB layouts, specifically the 84-PLCC footprint dimensions. Consider the operational temperature limits of 0°C to 70°C against environmental requirements. Since the device is obsolete, evaluate alternative components from the same family or newer generations that offer similar 64Kb capacity and 55ns speed characteristics while ensuring interface signal integrity matches the target application design.

Memory IC Part Context

The 7024S55J belongs to the Renesas 7024 series of dual-port SRAMs, which are designed for applications requiring independent port access. This specific model represents the commercial grade variant with 55ns timing specifications. It shares architectural similarities with other variants in the series but differs in package type and operating temperature range compared to industrial or extended temperature options.

Memory IC Replacement Considerations

Official manufacturer-recommended substitutes include the 7024L20G. Designers should verify electrical parameter compatibility and physical footprint alignment when transitioning to replacement parts.