7024S55JI

Memory IC Overview

The Renesas Electronics Corporation 7024S55JI is a dual-port static random-access memory (SRAM) integrated circuit with a storage capacity of 64Kb, organized as 4K words by 16 bits. It features asynchronous parallel interface operation with a maximum access time and write cycle time of 55 ns. The device operates on a single 4.5V to 5.5V power supply and supports surface-mount installation in an 84-pin Plastic Leadless Chip Carrier (PLCC) package measuring 29.31x29.31 mm. It functions within a commercial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• True dual-port architecture enabling simultaneous independent read/write operations from either port without bus contention.
• Asynchronous operation allowing flexible timing control for both ports independently.
• TTL-compatible logic levels supporting direct interfacing with standard digital systems.

Memory IC Applications

• High-speed data buffering in telecommunications equipment
• Cache memory implementation in embedded processing systems
• Data logging applications requiring rapid sequential access

Memory IC Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS compliance requirements as the device may not meet current environmental standards. Validate package integrity upon receipt, ensuring no pin damage or contamination. Check datasheet revisions for any specific handling instructions related to the PLCC form factor.

Memory IC Selection Notes

Select this component when dual-port functionality is required for 64Kb capacity with 55 ns speed. Ensure system voltage aligns with the 4.5V to 5.5V specification. Consider the 84-PLCC package constraints for PCB layout. Evaluate thermal management needs for the specified operating temperature range.

Memory IC Part Context

Part of the 7024S series of dual-port SRAMs, offering high-speed memory solutions for complex data handling tasks. The 7024S55 variant specifically targets applications needing moderate speed with reliable dual-port access. It complements other members of the family with varying access times and capacities.

Memory IC Replacement Considerations

Officially recommended substitute: 7024L20G. Verify pin compatibility and electrical specifications before substitution. Note that replacement parts may have different packaging or lead-free status.

Memory IC FAQ

Can both ports access the same memory location simultaneously?

Yes, the true dual-port architecture allows simultaneous reads of the same memory location from both ports without conflict.

What is the maximum operating voltage for the 7024S55JI?

The device supports a supply voltage range of 4.5V to 5.5V, with 5.5V being the maximum limit.