7130SA55JI

Memory IC Overview

The Renesas Electronics Corporation 7130SA55JI is an asynchronous dual-port static random access memory (SRAM) device. It provides a storage capacity of 8 kbit, organized as 1K x 8 bits. The component features a parallel interface with a maximum access time of 55 ns. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum power supply current of 110 mA. The device is housed in a CDIP-SB-48 package and is rated for an extended industrial operating temperature range from -55°C to +125°C.

Memory IC Feature Summary

• Dual-port architecture enabling independent simultaneous access by two processors
• CMOS technology designed for high-speed asynchronous operation
• Extended industrial temperature rating suitable for harsh environments

Memory IC Applications

• High-performance real-time processing systems requiring concurrent data access
• Industrial equipment control units operating in extreme temperatures
• Communication network infrastructure hardware

Memory IC Procurement Notes

Verify the specific suffix designation carefully, as variants such as 7130SA55CB or 7130SA55C differ significantly in operating temperature ranges. Confirm RoHS compliance status, as many versions are marked non-compliant. Check for end-of-life notifications, as this series has faced discontinuation notices. Ensure the CDIP-SB-48 package availability matches your board design requirements before finalizing procurement plans.

Memory IC Selection Notes

Select this component when dual-port functionality is required for shared memory applications. The 55 ns access speed suits moderate-to-high frequency asynchronous interfaces. Consider the wide temperature range if the application exceeds standard commercial limits. Verify that the 4.5 V to 5.5 V supply requirement aligns with the system power rails. Compare against other 7130SA series members for pin-compatible alternatives with different thermal ratings.

Memory IC Part Context

This part belongs to the IDT/Renesas 7130SA family of CMOS dual-port SRAMs. These devices are engineered for applications demanding high-speed data sharing between multiple masters. The family typically includes variations in package types and temperature grades. The 7130SA series represents a legacy product line often used in established industrial and telecommunications designs.

Memory IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult official Renesas discontinuation notices for potential obsolescence management strategies.