7025S35JI

Memory IC Overview

The Renesas Electronics Corporation 7025S35JI is a dual-port asynchronous 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 parallel interface access with a maximum access time of 35 nanoseconds. It operates on a single 4.5V to 5.5V power supply and supports an industrial temperature range from -40°C to +85°C. The component is housed in an 84-pin Plastic Leadless Chip Carrier (PLCC) package measuring 29.31mm by 29.31mm.

Memory IC Feature Summary

• True dual-ported memory architecture enabling simultaneous independent reads and writes from two separate ports without conflict.
• Integrated hardware semaphore signaling logic for automatic port arbitration and synchronization between the two access ports.
• Supports multiplexed bus compatibility through separate upper-byte and lower-byte control signals.
• Includes interrupt flag functionality and automatic power-down modes controlled by chip enable inputs.

Memory IC Applications

• High-speed data buffering in telecommunications equipment requiring concurrent data access.
• Master/slave configurations in 32-bit or wider system architectures.
• Industrial control systems operating within extended temperature environments.
• Network routers and switches utilizing dual-port memory for packet processing.

Memory IC Procurement Notes

Verify the specific suffix JI against official Renesas documentation to confirm the exact package type and temperature grade. Confirm RoHS compliance status as older variants may not meet current environmental standards. Check for product discontinuation notices or end-of-life notifications prior to finalizing procurement plans.

Memory IC Selection Notes

Select this component when true dual-port independence is required for high-throughput applications. Ensure the design accommodates the 84-pin PLCC footprint and thermal requirements for the industrial temperature range. Verify that the 35ns access speed meets the system timing constraints compared to faster alternatives in the 7025 series.

Memory IC Part Context

The 7025S35JI belongs to the Renesas 7025 family of high-speed dual-port SRAMs. This family offers various access speeds and packaging options to suit different system performance needs. The S35 designation indicates the 35ns speed grade within the asynchronous dual-port lineup.

Memory IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult official Renesas resources for potential upgrades or cross-references.