7005S17J8

Overview

The Renesas 7005S17J8 is a high-speed, asynchronous dual-port static random-access memory (SRAM) with a density of 64 kilobits. It features an 8K x 8 organization and supports simultaneous independent access from two ports. The device operates on a single 5V power supply within a range of 4.5V to 5.5V. It provides a maximum access time of 17 nanoseconds. The component is housed in a 68-pin Plastic Leadless Chip Carrier (PLCC) package designed for surface-mount technology.

Feature Summary

• True dual-ported memory architecture enabling simultaneous reads of the same location
• On-chip hardware support for semaphore signaling between ports
• Automatic power-down feature controlled by chip enable signals
• TTL-compatible I/O levels with single 5V power supply operation

Applications

• Stand-alone 64K-bit dual-port RAM systems
• Master/Slave dual-port configurations for 16-bit or wider word systems
• Battery-backed data retention applications requiring low standby power

Procurement Notes

Verify component authenticity through authorized channels as this part may be discontinued. Confirm package integrity and moisture sensitivity handling procedures prior to assembly. Check for RoHS compliance status and ensure compatibility with existing PCB footprints. Validate electrical specifications against current design requirements before final procurement decisions.

Selection Notes

Select this component when simultaneous independent port access is required without external arbitration logic. Consider the 17ns access speed for moderate-frequency asynchronous interfaces. Evaluate the PLCC-68 package constraints against available board space. Ensure system voltage remains within the specified 4.5V to 5.5V range for reliable operation.

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. It serves as a versatile memory solution for embedded systems needing concurrent data access capabilities.

Replacement Considerations

Verify pinout compatibility with alternative dual-port SRAMs if sourcing substitutes. Check access time specifications to ensure equivalent or faster performance. Confirm package dimensions match the existing footprint to avoid mechanical redesign.