7005S25JG8

Overview

The Renesas Electronics Corporation 7005S25JG8 is a high-speed 8K x 8 dual-port static RAM with a 64Kbit density. It features a 25 ns access time and operates on a single 5V power supply within a 4.5V to 5.5V range. The device utilizes a 68-pin PLCC package with J-leads, measuring 24.21mm by 24.21mm. It supports asynchronous parallel interfaces and includes hardware semaphore signaling for port arbitration.

Feature Summary

• True dual-ported memory cells allow simultaneous independent reads of the same memory location from both ports without conflict.
• On-chip hardware support for semaphore signaling enables efficient master/slave coordination and bus arbitration between ports.
• Automatic power-down feature controlled by chip enable signals allows the internal circuitry to enter a low standby power mode.

Applications

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

Procurement Notes

Verify component authenticity through authorized channels as this part may be discontinued. Confirm package integrity upon receipt, as moisture sensitivity level 3 requires proper handling. Check datasheet revisions for any pinout or electrical parameter updates before final integration into designs.

Selection Notes

Select this component when simultaneous independent access to shared memory is required. Ensure system voltage aligns with the 5V TTL-compatible interface. Consider the PLCC package constraints for PCB layout and verify thermal requirements against the specified operating temperature range.

Part Context

This device belongs to the 7005S series of dual-port SRAMs, which are designed for high-performance data buffering and communication applications. The series offers various speed grades and packaging options to accommodate different system timing and form factor requirements.

Replacement Considerations

Public confirmed substitute part numbers: None identified in available documentation.