70261L15PFG

Memory IC Overview

The Renesas Electronics Corporation 70261L15PFG is a high-speed 16K x 16 Dual-Port Static RAM. It features true dual-ported memory cells allowing simultaneous access to the same location. The device operates with a TTL-compatible, single 5V power supply and supports asynchronous operation from either port. It includes on-chip hardware support for semaphore signaling and port arbitration logic. The component is available in a 100-pin TQFP package.

Memory IC Feature Summary

• True dual-ported memory architecture enabling simultaneous independent access to shared memory locations by two distinct ports.
• Integrated on-chip hardware support for semaphore signaling and automatic power-down modes controlled by chip enable signals.
• Separate upper-byte and lower-byte control mechanisms designed to facilitate multiplexed bus compatibility.

Memory IC Applications

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

Memory IC Procurement Notes

Verify RoHS compliance status as historical records indicate variations between lead-free and non-compliant versions for this series. Confirm package type accuracy, as suffixes may denote different packaging formats such as trays or reels. Check current manufacturing status, as specific variants within the 70261 family have been subject to discontinuation notices. Ensure the selected part number matches the required temperature grade and access time specifications for the target design.

Memory IC Selection Notes

Select this component when simultaneous independent access to shared memory is required without external arbitration overhead. The 70261L15PFG is suitable for designs needing a 16-bit data width with a 15 ns access time. Consider the 100-pin TQFP package constraints for PCB layout. Evaluate the need for built-in semaphore support versus external management solutions based on system complexity.

Memory IC Part Context

The 70261L15PFG belongs to the 70261 series of dual-port SRAMs manufactured by Renesas Electronics. This series is characterized by its ability to function as both standalone memory and as part of master/slave combinations for expanded data buses. The 'L' suffix typically denotes commercial temperature range availability, while 'PFG' specifies the 100-pin TQFP plastic package configuration.

Memory IC Replacement Considerations

Public confirmed substitute part numbers include 70261L15PFG8 for reel packaging alternatives. Other speed grades within the same package family, such as 70261L20PFGI, offer slower access times but maintain pin compatibility.