7005L45JI8

Overview

The Renesas Electronics Corporation 7005L45JI8 is a high-speed, asynchronous dual-port static random access memory (SRAM) with a storage capacity of 64 kbit. The device features an 8k x 8 organization and supports parallel interface communication. It operates within a supply voltage range of 4.5 V to 5.5 V, with a maximum power consumption of 210 mA. The component provides a typical access time of 45 ns and functions reliably across a commercial temperature range from 0°C to +70°C. It is designed for surface mount installation using a PLCC-32 package.

Feature Summary

• True dual-ported memory cells enable simultaneous independent reads and writes from either port without conflict.
• On-chip hardware support for semaphore signaling facilitates efficient data synchronization between the two ports.
• Automatic power-down feature controlled by chip enable allows entry into low standby power mode.
• Built-in interrupt flag and port arbitration logic simplify system integration and management.

Applications

• Stand-alone 64K-bit dual-port RAM systems
• Master/Slave dual-port configurations for 16-bit or wider word systems
• Battery backup applications requiring 2V data retention

Procurement Notes

Verify component authenticity through authorized distributors as this part may be subject to obsolescence notices. Confirm package integrity and moisture sensitivity handling requirements prior to assembly. Check for specific RoHS compliance status as older variants may not meet current environmental standards. Ensure ordering suffixes match exact pinout and electrical specifications required for your design.

Selection Notes

Select this component when simultaneous bidirectional data access is required in embedded systems. Consider the 45 ns access speed and 64 kbit density for buffer or cache applications. Verify that the 5V TTL-compatible interface matches your system logic levels. Evaluate the PLCC-32 package constraints against your PCB layout space and thermal dissipation needs.

Part Context

This device belongs to the 7005 series of dual-port SRAMs manufactured by Renesas Electronics. The series offers various access speeds and packaging options to suit different performance and form factor requirements. These components are widely used in telecommunications and industrial control systems where reliable concurrent memory access is critical.

Replacement Considerations

Check for direct substitutes such as the IDT7005L45JI8. Verify pin compatibility and electrical parameters before substitution. Consult manufacturer documentation for any pin-to-pin compatible alternatives if the original part is discontinued.