7005S20G

Overview

The Renesas 7005S20G is a high-speed 8K x 8 Dual-Port Static RAM with a 64 kbit density. It features parallel asynchronous interfaces and operates on a single 5V supply (4.5V to 5.5V). The device supports simultaneous independent reads from either port, including concurrent access to the same memory location. Key functional attributes include on-chip hardware semaphore signaling, interrupt flags, and automatic power-down modes controlled by chip enable inputs.

Feature Summary

• True dual-ported memory architecture enabling simultaneous independent read operations from both ports
• On-chip hardware support for semaphore signaling and interrupt flags between ports
• Automatic low standby power mode activated via chip enable control
• TTL-compatible I/O levels with single 5V power supply operation

Applications

• Stand-alone 64K-bit dual-port memory systems
• Master/Slave dual-port configurations for 16-bit or wider data bus expansion
• Battery-backed memory applications requiring 2V data retention
• Industrial control systems utilizing asynchronous parallel interfaces

Procurement Notes

Verify component authenticity through authorized distributors as this part may be discontinued. Confirm package integrity and moisture sensitivity handling procedures prior to assembly. Cross-reference datasheet revisions to ensure compatibility with existing system designs. Validate electrical specifications against current operating requirements before procurement.

Selection Notes

Select this component when simultaneous independent access to shared memory is required without external arbitration logic. Suitable for applications needing hardware-based synchronization via semaphores. Ensure design accommodates the PLCC-68 surface mount package constraints. Verify voltage tolerance matches the 5V TTL interface requirements of the host system.

Part Context

The 7005 series represents a family of high-speed dual-port SRAMs designed for flexible memory sharing. This specific model utilizes a 68-pin PLCC package variant within the broader product line that also includes PGA and TQFP options. The series supports various access times and temperature ranges to meet diverse industrial and commercial application needs.

Replacement Considerations

Compatible substitutes include IDT7005S20J8 and other 7005 series variants with matching 20ns access times. Verify pinout compatibility and package dimensions when transitioning between PGA, PLCC, or TQFP footprints. Ensure replacement parts maintain identical semaphore and interrupt functionality for seamless integration.