7025S25G

Memory IC Overview

The Renesas Electronics Corporation 7025S25G is a high-speed, asynchronous dual-port static random-access memory (SRAM) with a density of 128 kbit. The memory is organized as 8k words by 16 bits and features a parallel interface. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an access time of 25 ns. The component is designed for through-hole installation in an 84-pin PGA package. It functions within a commercial temperature range from 0°C to +70°C.

Memory IC Feature Summary

• True dual-ported architecture enabling simultaneous independent reads and writes from two separate ports.
• On-chip hardware support for semaphore signaling and port arbitration logic to manage concurrent access.
• Automatic power-down mode controlled by chip enable signals to minimize standby power consumption.
• TTL-compatible single 5V power supply operation with battery backup capability for data retention.

Memory IC Applications

• Stand-alone 128K-bit dual-port RAM systems
• Master/slave dual-port configurations for 32-bit or wider word systems
• High-speed data buffering between asynchronous processors

Memory IC Procurement Notes

Verify the specific suffix 'G' against official Renesas documentation to confirm lead-free status and RoHS compliance, as legacy variants may differ. Confirm package dimensions match the 84-PGA specification. Check current lifecycle status, as older SRAM models are frequently subject to discontinuation notices. Ensure design-in compatibility with existing board layouts before finalizing procurement.

Memory IC Selection Notes

Select this component when true dual-port independence is required for simultaneous data access without external arbitration overhead. The 25 ns speed offers a balance between performance and power compared to faster variants. Verify that the 84-pin PGA through-hole package fits the target PCB assembly constraints. Consider industrial temperature ranges if operating conditions exceed the commercial 0°C to +70°C limit.

Memory IC Part Context

The 7025 series represents a family of high-speed dual-port SRAMs designed for complex embedded applications requiring shared memory resources. This specific model utilizes asynchronous operation, allowing flexible timing integration into various digital systems. The dual-port feature distinguishes it from standard single-port memories by eliminating bus contention issues inherent in shared memory architectures.

Memory IC Replacement Considerations

Publicly confirmed substitutes include other members of the 7025L and 7025S families with compatible pinouts and electrical characteristics. Verify that alternative part numbers maintain the same 8k x 16 organization and PGA-84 package form factor to ensure mechanical interchangeability.