70261L12PFI8

Memory IC Overview

The Renesas Electronics Corporation 70261L12PFI8 is a high-speed 16K x 16 Dual-Port Static RAM featuring true dual-ported memory cells for simultaneous access. It operates on a single 5V (±10%) TTL-compatible power supply with an access time of 12 ns. The device supports asynchronous operation from either port and includes on-chip hardware for semaphore signaling, busy flags, and interrupt flags. It utilizes automatic power-down features controlled by CE to enter low standby modes. The component is housed in a 100-pin TQFP package suitable for surface mount installation.

Memory IC Feature Summary

• True dual-ported memory architecture enabling simultaneous independent access to the same memory location from both ports.
• Integrated on-chip port arbitration logic providing full hardware support for semaphore signaling between ports.
• Includes busy and interrupt flags along with separate upper-byte and lower-byte control for multiplexed bus compatibility.

Memory IC Applications

• Stand-alone dual-port RAM systems
• Master/Slave dual-port RAM configurations for 32-bit or wider word systems
• High-speed data buffering applications requiring concurrent read/write operations

Memory IC Procurement Notes

Verify current availability status as this component may be subject to end-of-life restrictions or limited stock conditions. Confirm RoHS compliance and moisture sensitivity level requirements prior to integration. Ensure the specific suffix PFI8 matches the required reel packaging format for your assembly line equipment. Cross-reference with official Renesas documentation for any recent product change notices affecting pinout or electrical characteristics.

Memory IC Selection Notes

Select this part when simultaneous bidirectional data transfer is required without external arbitration overhead. The 12 ns access speed suits high-performance embedded applications. Consider the 100-pin TQFP footprint for PCB layout constraints. Verify that the 5V supply voltage aligns with the system's power domain. Evaluate the need for internal semaphore logic versus external management solutions.

Memory IC Part Context

This component belongs to the 70261 series of dual-port SRAMs manufactured by Renesas Electronics. The series offers various access times and packaging options to accommodate different performance and form factor requirements. These devices are designed for industrial temperature ranges and provide robust data integrity through built-in flag mechanisms.

Memory IC Replacement Considerations

Consult official Renesas documentation for verified substitute part numbers within the 70261 family. Ensure any replacement maintains identical pinout, voltage levels, and timing specifications to guarantee functional compatibility without circuit redesign.