7026S55JI

Memory IC Overview

The Renesas Electronics Corporation 7026S55JI is a dual-port static random-access memory (SRAM) integrated circuit. It provides a storage capacity of 128 kilobits, organized as 8K words by 16 bits. The device features asynchronous parallel interfaces for both ports, allowing independent read and write operations. It operates within a supply voltage range of 4.5V to 5.5V and supports access times up to 55 nanoseconds. The component is housed in an 84-lead Plastic Leadless Chip Carrier (PLCC) package with J-leads, suitable for surface-mount applications.

Memory IC Feature Summary

• Supports simultaneous independent read and write operations on two separate ports
• Includes automatic power-down functionality controlled by chip enable signals
• Compatible with standard 5V logic families for interface integration

Memory IC Applications

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

Memory IC Procurement Notes

Verify the specific suffix requirements against current manufacturer documentation, as legacy part numbers may have undergone packaging or labeling changes. Confirm RoHS compliance status and moisture sensitivity levels prior to procurement. Check for official end-of-life notifications or product discontinuance notices from Renesas Electronics to ensure long-term availability and support.

Memory IC Selection Notes

Select this component when a system requires true dual-port memory architecture for concurrent data access without bus contention. Ensure the design accommodates the 84-pin PLCC footprint and the 4.5V to 5.5V operating voltage range. Consider the 55ns access time relative to the target processor clock speeds to guarantee timing compatibility.

Memory IC Part Context

This component belongs to the 7026S series of high-speed dual-port SRAMs manufactured by Renesas Electronics. The series is designed for applications requiring fast, independent port access. The 7026S55JI variant specifically denotes the 55ns speed grade and the 84-PLCC package configuration within this product line.

Memory IC Replacement Considerations

Consult official Renesas substitution guides for verified equivalents. Potential replacements include other 128Kb dual-port SRAMs with compatible pinouts and electrical specifications. Verify that any substitute maintains the same asynchronous operation mode and voltage requirements.