7025L55JI8

Memory IC Overview

The Renesas Electronics Corporation 7025L55JI8 is a dual-port static random-access memory (SRAM) device with a storage capacity of 128 kbit, organized as 8k x 16. It features an asynchronous parallel interface and a maximum access time of 55 ns. The component operates within a supply voltage range of 4.5 V to 5.5 V and supports surface-mount installation in an 84-pin PLCC package. It is rated for commercial temperature operation from 0°C to +70°C.

Memory IC Feature Summary

• Provides true dual-port architecture allowing simultaneous independent access to memory cells by two separate ports.
• Supports multiplexed bus compatibility through separate upper-byte and lower-byte control signals.
• Includes on-chip hardware support for semaphore signaling and port arbitration logic between the two ports.

Memory IC Applications

• Stand-alone 128K-bit dual-port RAM systems
• Master/Slave dual-port configurations for 32-bit or wider data bus expansion
• Battery-backed memory applications requiring low standby power

Memory IC Procurement Notes

Verify component authenticity and datasheet alignment before integration. Confirm that the specific suffix matches required environmental ratings and pinout definitions. Check for end-of-life status or obsolescence notices prior to final design approval. Ensure supply chain stability given potential discontinuation risks associated with legacy SRAM families.

Memory IC Selection Notes

Select this part when a high-speed asynchronous dual-port SRAM with 16-bit word width is required. Compare against other speed grades within the 7025 family based on timing constraints. Verify package compatibility with existing PCB footprints. Consider industrial temperature variants if operating conditions exceed commercial limits.

Memory IC Part Context

The 7025 series represents a line of high-speed dual-port SRAMs designed for versatile memory applications. This specific model belongs to the L-series, indicating commercial temperature range operation. It shares architectural similarities with other members like the 7025S55 but differs in thermal specifications and potentially availability status.

Memory IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.