7005L17J8

Overview

The Renesas Electronics Corporation 7005L17J8 is a high-speed, asynchronous dual-port static random access memory (SRAM) with a total storage capacity of 64 kbit. The memory array is organized as 8k words by 8 bits. This component features true dual-ported memory cells that allow simultaneous independent reads and writes from either port without conflict. It operates on a single 5V power supply within a voltage range of 4.5 V to 5.5 V. The device supports an access time of 17 ns and includes on-chip hardware support for semaphore signaling and interrupt flags to manage bus arbitration between the two ports.

Feature Summary

• True dual-ported architecture enabling simultaneous independent access from both ports
• On-chip hardware logic for automatic port arbitration and semaphore signaling
• Asynchronous operation compatible with TTL logic levels
• Automatic power-down mode controlled by chip enable signals

Applications

• Stand-alone 64K-bit dual-port memory systems
• Master/Slave configurations in 16-bit or wider data bus architectures
• High-speed data buffering between asynchronous subsystems
• Battery-backed memory applications requiring low standby current

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential availability constraints. 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. Validate pin compatibility if replacing existing designs with similar part numbers from the same family.

Selection Notes

Select this component when simultaneous independent access to shared memory is required without external arbitration logic. Ensure the design accommodates the 68-pin PLCC package dimensions and thermal characteristics. Verify that the system timing allows for the specified 17 ns access window. Consider the 5V supply requirement and ensure adequate decoupling for the maximum operating current.

Part Context

The 7005 series represents a family of high-performance dual-port SRAMs designed for applications requiring fast, conflict-free data sharing. Manufactured by Renesas Electronics, these devices utilize advanced CMOS technology to provide low power consumption and high speed. The 7005L17J8 specifically denotes the 17 ns speed grade within the industrial temperature range variant of this family.

Replacement Considerations

IDT7005L17J8