70261L25PFI8

Memory IC Overview

The 70261L25PFI8 is a high-speed, 256-kbit (16K x 16) dual-port static random-access memory manufactured by Renesas Electronics. It features asynchronous parallel interface operation with a maximum access time of 25 ns. The device operates on a single 5V power supply within the commercial temperature range of 0°C to +70°C. It is housed in a 100-pin Thin Quad Flat Package (TQFP) and supports simultaneous independent access to memory locations from both ports.

Memory IC Feature Summary

• True dual-ported memory architecture enabling simultaneous read/write access to identical addresses from separate ports
• Integrated hardware semaphore signaling for automatic port arbitration and conflict resolution
• On-chip busy and interrupt flags providing real-time status indication for bus contention
• Automatic low-power standby mode activated via chip enable control

Memory IC Applications

• Stand-alone dual-port RAM modules in embedded systems
• Master/Slave dual-port configurations for 32-bit or wider data bus expansion
• High-speed data buffering between asynchronous processing units
• Real-time signal processing applications requiring concurrent data access

Memory IC Procurement Notes

Verify the specific suffix 'PFI8' against official Renesas documentation to confirm package type and tape-and-reel orientation. Ensure compatibility with existing PCB footprints for the 100-TQFP form factor. Confirm that the 5V logic levels align with system voltage requirements. Check for RoHS compliance status as indicated in current datasheets. Validate moisture sensitivity level handling procedures during assembly.

Memory IC Selection Notes

Select this component when simultaneous independent access to shared memory is required without external arbitration logic. Suitable for designs needing fast, deterministic data exchange between two processors or controllers. Consider the 25 ns access speed relative to system clock frequencies. Evaluate the 100-pin TQFP package constraints against available board space. Verify thermal performance within the specified commercial operating temperature range.

Memory IC Part Context

This part belongs to the 70261 series of dual-port SRAMs, designed for high-performance data storage applications. The series offers various access speeds and packaging options to suit different system requirements. Renesas Electronics provides this family as a solution for complex data routing and buffering tasks in industrial and communication equipment.

Memory IC Replacement Considerations

Consult official Renesas substitution guides for compatible alternatives. Verify pinout compatibility if replacing with similar dual-port SRAMs. Ensure electrical specifications match the original design requirements.