7025S35PFI8

Memory IC Overview

The Renesas Electronics Corporation 7025S35PFI8 is a dual-port static random-access memory integrated circuit with a storage capacity of 128Kb, organized as 8K words by 16 bits. It features asynchronous parallel interface operation with an access time and write cycle time of 35 ns. The device operates on a single 4.5V to 5.5V power supply and supports surface-mount installation in a 100-TQFP package measuring 14x14 mm. It functions within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• True dual-ported memory architecture enabling simultaneous independent reads from the same memory location by both ports.
• Integrated hardware support for semaphore signaling and port arbitration logic to manage concurrent access conflicts.
• Separate upper-byte and lower-byte control lines designed to facilitate multiplexed bus compatibility.
• Automatic power-down mode controlled by Chip Enable signals to achieve low standby power consumption.

Memory IC Applications

• Stand-alone 128K-bit dual-port RAM systems
• Master/Slave dual-port RAM configurations for 32-bit or wider data bus expansion
• Industrial embedded systems requiring asynchronous memory buffering

Memory IC Procurement Notes

This component is officially discontinued and no longer manufactured by Renesas Electronics. Verification of availability should focus on replacement parts rather than original stock. Confirm that substitute components match the required pinout, voltage specifications, and functional parameters before integration into existing designs.

Memory IC Selection Notes

Designers must evaluate the discontinuation status when selecting this part for new projects. Verify that the chosen replacement offers equivalent electrical characteristics, including the 35 ns access time and 100-TQFP package dimensions. Ensure the substitute supports the necessary industrial temperature range and dual-port functionality required by the application architecture.

Memory IC Part Context

The 7025S35PFI8 belongs to the Renesas 7025S series of high-speed dual-port SRAMs. This family provides true dual-ported memory cells and TTL-compatible single 5V operation. The series includes various access times and package options, such as PGA and PLCC, to support diverse system requirements for asynchronous memory applications.

Memory IC Replacement Considerations

The official upgrade substitute is the 7025L20PFGI8. Verify compatibility regarding package type and electrical specifications during migration.