7005L45J

Overview

The Renesas Electronics Corporation 7005L45J is an asynchronous dual-port static random-access memory (SRAM) IC. It provides a storage capacity of 64 kilobits, organized as 8K words by 8 bits. The device features a parallel interface with a maximum access time of 45 nanoseconds. It operates within a supply voltage range of 4.5 volts to 5.5 volts and supports surface-mount installation in a 68-pin PLCC package. The component is designed for commercial temperature ranges from 0°C to +70°C.

Feature Summary

• Dual-port architecture enabling independent simultaneous access to the same memory array via two separate port control sets.
• Asynchronous operation allowing flexible timing integration without requiring a synchronized system clock signal.
• Standard parallel data bus interface supporting direct connection to microprocessors and digital logic systems.

Applications

• Data buffering in high-speed communication interfaces
• Cache memory implementation in embedded processing systems
• Temporary storage in industrial automation controllers

Procurement Notes

Verify current availability status as this component may be subject to discontinuation notices. Confirm RoHS compliance requirements against specific project standards, as older variants may not meet current environmental directives. Validate package integrity upon receipt due to the age of the manufacturing run. Ensure ESD protection protocols are followed during handling and assembly processes.

Selection Notes

Select this part when a non-volatile-free, low-latency memory solution is required for bidirectional data exchange between two processors. The 45 ns speed suits moderate-frequency applications where complex synchronous interfaces are unnecessary. Consider the 68-PLCC footprint constraints during PCB layout planning. Evaluate power consumption limits against the specified maximum supply current ratings for thermal management.

Part Context

This component belongs to the Renesas 7005 series of dual-port SRAMs, which are widely used in legacy and specialized industrial designs. The series offers various access times and package options to accommodate different performance and form-factor requirements. The 7005L45J specifically targets applications needing reliable, fast, independent read/write capabilities without complex controller overhead.

Replacement Considerations

Direct substitutes include IDT7005L45J. Verify pin compatibility and electrical specifications before substitution. Alternative packages such as 7005L35G offer faster speeds but require different mounting considerations.