7025S55JI8

Memory IC Overview

The Renesas Electronics Corporation 7025S55JI8 is a static random access memory component with a storage capacity of 128 kbit, organized as 8 k x 16. It features an asynchronous parallel interface and has an access time of 55 ns. The device operates within a power supply voltage range of 4.5 V to 5.5 V. It supports surface mount installation in a PLCC-84 package. The operational temperature range extends from -40°C to +85°C.

Memory IC Feature Summary

• Dual-port architecture enabling simultaneous independent access by two processors
• Asynchronous operation allowing flexible timing integration without clock synchronization
• On-chip hardware support for semaphore signaling between ports

Memory IC Applications

• Stand-alone dual-port memory systems
• Master/Slave dual-port RAM configurations for expanded data bus widths
• Systems requiring battery backup operation with data retention

Memory IC Procurement Notes

Verify the current lifecycle status before procurement planning, as this component may be discontinued or subject to limited availability. Confirm RoHS compliance requirements against specific project standards, noting that some variants may not meet current environmental directives. Ensure the PLCC-84 package footprint matches the target PCB design constraints and thermal management capabilities.

Memory IC Selection Notes

Select this component when a high-speed asynchronous dual-port SRAM is required for applications needing simultaneous read/write access from separate processors. The 55 ns access time suits moderate-speed processing tasks. Verify that the 84-pin PLCC package is compatible with the assembly process and that the industrial temperature range meets the environmental operating conditions of the final system.

Memory IC Part Context

This part belongs to the 7025S55 series of dual-port static random access memories manufactured by Renesas Electronics. The series provides true dual-ported memory cells designed for high-performance data sharing between multiple processors. These components are typically utilized in embedded systems where low-latency communication between independent processing units is critical for system efficiency.

Memory IC Replacement Considerations

IDT7025S55JI8 is listed as an alias for this component.