7005L55JI

Overview

The 7005L55JI is a dual-port, asynchronous static random-access memory (SRAM) integrated circuit manufactured by Renesas Electronics. It provides a storage capacity of 64 kilobits, organized as 8K words by 8 bits. The device features a parallel interface with a maximum access time of 55 nanoseconds. It operates within a supply voltage range of 4.5V to 5.5V and supports a commercial operating temperature range of 0°C to 70°C. The component is housed in a 68-lead Plastic Leadless Chip Carrier (PLCC) package with dimensions of 24.21mm x 24.21mm.

Feature Summary

• Supports simultaneous independent access from two separate ports for concurrent read/write operations
• Utilizes asynchronous parallel interface architecture for flexible system integration
• Provides non-volatile data retention capabilities inherent to SRAM technology

Applications

• High-speed data buffering in telecommunications equipment
• Cache memory implementation in embedded processing systems
• Data storage in industrial control logic circuits

Procurement Notes

Verify the specific suffix JI against official Renesas documentation to confirm package type and lead-free status. Confirm end-of-life or obsolescence status through authorized distributors, as availability may be limited. Ensure compatibility with existing board layouts regarding the 68-PLCC footprint and pin configuration before procurement.

Selection Notes

Select this component when dual-port functionality is required for concurrent data handling between processors or peripherals. The 55ns access speed suits moderate-speed asynchronous applications. Consider the PLCC package constraints for surface-mount assembly processes and thermal management requirements within the specified commercial temperature range.

Part Context

This part belongs to the Renesas 7005L series of dual-port SRAMs. Variants in this series differ primarily in access speed and package style. The 7005L55JI specifically denotes the 55ns speed grade in the PLCC package format, distinguishing it from faster TQFP versions or slower through-hole PGA variants within the same memory architecture family.

Replacement Considerations

Cross-reference with IDT7005L55JI for potential functional equivalence. Verify pinout compatibility and electrical specifications against original design requirements before substitution.