7005L15J8

Overview

The Renesas Electronics Corporation 7005L15J8 is a high-speed, asynchronous dual-port static random access memory (SRAM) device. It provides a storage capacity of 64 kbit organized as 8k x 8 bits. The component features a parallel interface with an access time of 15 ns. It operates on a single 5V power supply, with voltage specifications ranging from a minimum of 4.5 V to a maximum of 5.5 V. The maximum power supply current is 210 mA. Designed for surface mount installation, the device is housed in a 68-pin PLCC package. It supports an operating temperature range from 0°C to +70°C.

Feature Summary

• True dual-ported memory architecture enabling simultaneous independent reads and writes from two separate ports without conflict.
• On-chip hardware support for semaphore signaling and port arbitration logic to manage data integrity between ports.
• Automatic power-down feature controlled by chip enable signals to reduce standby power consumption during idle periods.

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 channels due to end-of-life status. Confirm package integrity and moisture sensitivity handling requirements before assembly. Cross-reference datasheet revisions to ensure compatibility with existing design specifications. Validate pinout alignment with target PCB footprint. Check for alternative sourcing options given discontinued manufacturing status.

Selection Notes

Select this component when true dual-port functionality is required for concurrent data access. Ensure system voltage aligns with the 4.5V to 5.5V operational range. Consider the 68-pin PLCC package constraints for board layout. Verify that the 15 ns access time meets system timing requirements. Assess thermal management needs within the commercial temperature range.

Part Context

The 7005 series represents a family of high-speed dual-port SRAMs designed for versatile memory applications. This specific model belongs to the 5V TTL-compatible subset, offering robust performance for industrial and commercial environments. It serves as a foundational memory solution for systems requiring independent port access and hardware-based synchronization mechanisms.

Replacement Considerations

Public confirmed substitute part numbers: IDT7005L15J8.