70261L15PF

Memory IC Overview

The Renesas Electronics Corporation 70261L15PF is a high-speed, 256Kbit (16K x 16) dual-port static random-access memory (SRAM). It features asynchronous parallel interface operation with a maximum access time of 15 nanoseconds. The device operates on a single 5V power supply within the 4.5V to 5.5V range and supports an industrial temperature range from -40°C to +85°C. It is housed in a 100-pin Thin Quad Flat Pack (TQFP) surface-mount package.

Memory IC Feature Summary

• True dual-ported memory architecture enabling simultaneous independent access to the same memory location by two separate ports.
• Integrated hardware support for semaphore signaling and port arbitration logic to manage concurrent data access.
• Separate upper-byte and lower-byte control lines designed for compatibility with multiplexed bus systems.
• Automatic low-power standby mode activated by chip enable signals to reduce overall system power consumption.

Memory IC Applications

• Stand-alone dual-port RAM modules for high-speed data buffering
• Master/Slave dual-port configurations in 32-bit or wider word processing systems
• Network equipment requiring low-latency packet buffering
• Industrial control systems needing reliable real-time data exchange

Memory IC Procurement Notes

Verify component authenticity through authorized distributors due to potential obsolescence risks. Confirm RoHS compliance status as legacy variants may differ. Check moisture sensitivity level handling requirements during assembly. Validate pinout compatibility with existing PCB footprints before integration into new designs.

Memory IC Selection Notes

Select this component when simultaneous bidirectional data access is required without external arbitration overhead. Ensure voltage levels match the 5V logic family. Consider thermal dissipation capabilities within the TQFP package for enclosed environments. Evaluate if the 15ns speed meets system timing constraints compared to faster alternatives.

Memory IC Part Context

This part belongs to the 70261 series of dual-port SRAMs manufactured by Renesas Electronics. It serves as a critical interconnect memory solution in complex digital systems where data integrity and concurrent access are paramount. The series offers various speed grades and packaging options to suit different performance and form factor requirements.

Memory IC Replacement Considerations

The 70261L15PFG is a verified lead-free replacement variant within the same functional family. Verify package dimensions and pin compatibility before substitution. Ensure environmental compliance matches project specifications.