7005SJ

Overview

The 7005SJ is a dual-port static random-access memory (SRAM) integrated circuit manufactured by Renesas Electronics Corporation. It provides a total storage capacity of 64 kilobits, organized as 8K words by 8 bits. The device utilizes an asynchronous parallel interface for data access and communication. It is housed in a 68-pin Plastic Leadless Chip Carrier (PLCC) package with dimensions of 24.21mm x 24.21mm. This component is classified as volatile memory, requiring continuous power to retain stored information.

Feature Summary

• Dual-port architecture enabling independent access from two separate systems
• Asynchronous parallel interface for flexible timing integration
• Surface-mount PLCC packaging for automated assembly

Applications

• Data buffering between disparate system components
• Cache memory implementation in embedded controllers
• High-speed temporary storage in industrial automation equipment

Procurement Notes

Verify the specific manufacturer source, as this part number has been associated with both Renesas Electronics and IDT. Confirm the exact pinout and electrical specifications against the official datasheet before integration. Ensure the component is new and genuine, checking for proper labeling and package integrity upon receipt.

Selection Notes

Select this component when a dual-port SRAM solution is required for simultaneous read/write operations from different buses. Consider the 68-PLCC package constraints for board space and thermal management. Evaluate the asynchronous nature of the interface against system clock requirements to ensure compatible timing margins.

Part Context

This SRAM belongs to the broader family of high-speed memory devices used in digital logic applications. Dual-port memories like the 7005SJ are distinct from single-port variants by allowing concurrent access, which reduces latency in multi-master systems. They are commonly found in legacy or specialized industrial designs where simple parallel interfaces are preferred over complex serial protocols.

Replacement Considerations

Cross-reference with other 64Kbit dual-port SRAMs in 68-PLCC packages. Verify pin compatibility and voltage levels before substitution. Note that some distributors list this part under IDT branding; confirm functional equivalence with the original Renesas specification sheet.