70261S15PF

Memory IC Overview

The Renesas Electronics Corporation 70261S15PF is a high-speed 16K x 16 Dual-Port Static RAM with a storage capacity of 256 kbit. It features parallel asynchronous interface and 15 ns access time. The device operates on a single 4.5 V to 5.5 V power supply, drawing a maximum current of 240 mA. It supports surface mount installation in a 100-TQFP (14x14) package. The component is classified as obsolete and no longer manufactured.

Memory IC Feature Summary

• Dual-port architecture enabling simultaneous independent access from two ports
• Asynchronous operation for flexible system integration
• On-chip hardware support for semaphore signaling between ports

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

Memory IC Procurement Notes

This component is officially marked as obsolete and no longer manufactured by Renesas Electronics Corporation. Procurement is restricted to existing stock or secondary market sources. Verify the specific revision level and moisture sensitivity classification before acquisition, as manufacturing dates may vary significantly across available units.

Memory IC Selection Notes

Select this part only if legacy compatibility with the 70261 series is required. For new designs, consider upgrading to the 70261L15PFG8 variant which offers RoHS compliance and active status. Ensure the design accommodates the 100-pin TQFP footprint and 5V logic levels specified for this family.

Memory IC Part Context

The 70261S15PF belongs to the 70261 series of dual-port SRAMs, designed for high-performance data exchange between processors. It provides true dual-ported memory cells allowing simultaneous access to the same location. The series includes variants with different access times and temperature ranges, supporting both industrial and commercial applications through dedicated pinouts for busy and interrupt flags.

Memory IC Replacement Considerations

Renesas recommends the 70261L15PFG8 as an upgrade replacement. This alternative maintains the 16K x 16 organization and 15 ns speed while offering RoHS compliance and updated manufacturing support.