70261S15PF/T

Memory IC Overview

The Renesas Electronics Corporation 70261S15PF/T is a high-speed, 256K-bit (16K x 16) Dual-Port Static RAM. It features asynchronous parallel interface operation with a typical access time of 15 ns. The device operates on a single 5.0 V TTL-compatible power supply within a voltage range of 4.5 V to 5.5 V. It utilizes a 100-pin TQFP surface-mount package and supports an industrial temperature range from -40°C to +85°C.

Memory IC Feature Summary

• True dual-port architecture enabling simultaneous independent access to memory locations by two separate processors.
• Integrated hardware support for semaphore signaling and port arbitration logic between the two ports.
• Automatic low-power standby mode controlled by chip enable inputs to reduce active current consumption.

Memory IC Applications

• Stand-alone dual-port memory systems requiring concurrent data access.
• Master/Slave dual-port configurations for expanding data bus widths to 32 bits or more.
• High-speed digital signal processing applications requiring low-latency memory access.

Memory IC Procurement Notes

Verify component authenticity through authorized distributors due to potential counterfeit risks in the aftermarket. Confirm RoHS compliance status as original specifications may vary by manufacturing date. Ensure proper ESD handling procedures are followed during storage and installation given the moisture sensitivity level associated with the TQFP package type.

Memory IC Selection Notes

Select this component when simultaneous bidirectional data transfer is required without external arbitration circuitry. Consider the 15 ns access speed for timing-critical interfaces. Evaluate the 100-pin TQFP footprint against available PCB real estate. Verify that the operating temperature range meets the specific environmental requirements of the target application system.

Memory IC Part Context

This part belongs to the 70261 series of dual-port SRAMs manufactured by Renesas Electronics. The series provides flexible memory solutions for complex embedded systems. Variants within the family differ primarily in access speeds and packaging options while maintaining the core dual-port functionality and 16K x 16 organization structure.

Memory IC Replacement Considerations

Publicly confirmed substitute part numbers include 70261L15PFG8. Verify pin compatibility and electrical specifications before substitution. Ensure the replacement part meets the same thermal and voltage requirements as the original component.