7130SA55JI8

Memory IC Overview

The Renesas Electronics Corporation 7130SA55JI8 is an asynchronous dual-port static random access memory (SRAM) with a storage capacity of 8 kbit, organized as 1K x 8. It features a parallel interface and a maximum access time of 55 ns. The device operates on a single power supply ranging from 4.5 V to 5.5 V, with a maximum supply current of 110 mA. It supports an industrial operating temperature range from -40°C to +85°C and is housed in a 52-PLCC surface-mount package.

Memory IC Feature Summary

• Dual-port architecture enabling simultaneous independent access to the same memory location from two separate ports.
• Fully asynchronous operation requiring no clocks or refresh cycles for data integrity.
• Integrated port arbitration logic to manage concurrent read/write operations.

Memory IC Applications

• Real-time data buffering in industrial control systems
• High-speed cache memory in embedded processors
• Data logging applications requiring non-volatile-like persistence during power transitions

Memory IC Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS compliance requirements as the specific variant may not meet current environmental standards. Validate package integrity upon receipt, as PLCC components are sensitive to mechanical stress during handling and installation.

Memory IC Selection Notes

Select this component when dual-port functionality is required for high-speed asynchronous data exchange between independent bus masters. Ensure the system voltage aligns with the 4.5V to 5.5V specification. Consider the 55ns access time against system timing constraints and verify thermal management capabilities for the -40°C to +85°C operating range.

Memory IC Part Context

This part belongs to the Renesas 7130SA series of CMOS dual-port SRAMs. It shares architectural similarities with other members like the 7130SA55C but differs in packaging and temperature grade. The series is designed for applications requiring fast, conflict-free memory access without external arbitration hardware.

Memory IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with legacy IDT7130SA55JI8 equivalents if sourcing from secondary markets, ensuring pinout and electrical specifications match exactly.