7025S55PF8

Memory IC Overview

The Renesas Electronics Corporation 7025S55PF8 is a high-speed, asynchronous dual-port static random-access memory (SRAM) device. It provides a storage capacity of 128 kilobits organized as 8K words by 16 bits. The component features a parallel interface with a maximum access time of 55 nanoseconds. It operates on a single 5V power supply within a voltage range of 4.5V to 5.5V. The device is housed in an 84-pin Plastic Leadless Chip Carrier (PLCC) package with dimensions of 29.31mm x 29.31mm. It supports surface mount installation and functions within a commercial temperature range of 0°C to 70°C.

Memory IC Feature Summary

• True dual-ported memory architecture enabling simultaneous independent reads from both ports without conflict.
• Integrated hardware support for semaphore signaling and port arbitration logic to manage concurrent access.
• Automatic power-down mode controlled by chip enable signals to minimize standby power consumption.
• TTL-compatible inputs allowing direct interfacing with standard logic families using a single 5V supply.

Memory IC Applications

• Stand-alone 128K-bit dual-port RAM modules
• Master/Slave configurations for expanding data bus widths to 32 bits or more
• High-speed data buffering in embedded systems
• Network switch memory buffers

Memory IC Procurement Notes

Verify the specific suffix PF8 confirms the PLCC package and commercial temperature grade. Confirm RoHS compliance status as older variants may not meet current environmental directives. Check for End-of-Life notices or discontinuance notifications from Renesas. Validate that the required lead times align with project schedules given potential availability constraints for legacy components.

Memory IC Selection Notes

Select this component when true simultaneous access to shared memory locations is required. Ensure the system design accommodates the 84-pin PLCC footprint and associated PCB layout requirements. Verify that the 55ns access speed meets the timing constraints of the host processor. Consider the commercial temperature range limits if the application environment exceeds 70°C.

Memory IC Part Context

This part belongs to the Renesas 7025 family of high-speed dual-port SRAMs. The family offers various access speeds and package options to suit different performance and form-factor needs. The 7025 series is designed for applications requiring high bandwidth and low latency between two independent processors or controllers sharing a common memory space.

Memory IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Renesas official documentation for qualified replacements or pin-compatible alternatives.