70261S12PF

Memory IC Overview

The Renesas Electronics Corporation 70261S12PF 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 supports separate upper-byte and lower-byte control for multiplexed bus compatibility. It includes busy and interrupt flags, on-chip port arbitration logic, and full hardware support for semaphore signaling between ports. The component operates asynchronously from either port with a TTL-compatible single 5V power supply.

Memory IC Feature Summary

• True dual-ported memory architecture enabling simultaneous independent access
• On-chip hardware support for semaphore signaling and port arbitration
• Separate byte control for multiplexed bus compatibility
• Automatic low standby power mode controlled by chip enable

Memory IC Applications

• Stand-alone dual-port RAM systems
• Master/Slave dual-port RAM configurations for 32-bit or more word systems
• High-speed asynchronous data buffering applications

Memory IC Procurement Notes

Verify the specific suffix 'S' indicates commercial temperature range (0°C to 70°C) versus industrial grade. Confirm package type is TQFP-100. Check current lifecycle status as some variants in this series are discontinued. Ensure moisture sensitivity level 3 handling protocols are followed during assembly.

Memory IC Selection Notes

Select this component when simultaneous independent read/write access to shared memory is required. Suitable for systems needing hardware-based synchronization via semaphores. Verify voltage requirements match the 4.5V to 5.5V operating range. Consider thermal performance within the specified temperature limits.

Memory IC Part Context

Part of the 70261 family of dual-port SRAMs. Designed for high-performance embedded systems requiring fast data exchange between two processors or controllers without external arbitration overhead.

Memory IC Replacement Considerations

Check for direct pin-compatible upgrades such as 70261L12PFGI for industrial temperature range. Verify if 70V261 series offers similar functionality with different voltage specifications.