70261S20PFG

Memory IC Overview

The Renesas Electronics Corporation 70261S20PFG 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 fully 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 and supports industrial temperature ranges.

Memory IC Feature Summary

• True dual-ported memory architecture enabling simultaneous independent access to shared memory locations by two separate ports.
• Integrated on-chip port arbitration logic and full hardware support for semaphore signaling between ports.
• Separate upper-byte and lower-byte control mechanisms designed for multiplexed bus compatibility.
• Automatic power down feature controlled by chip enable signals to reduce standby power consumption.

Memory IC Applications

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

Memory IC Procurement Notes

Verify the exact suffix against official Renesas documentation to confirm specific speed grades and temperature ranges. Ensure the ordering part number matches the required package type and moisture sensitivity level. Confirm RoHS compliance status and lead-free specifications directly with the manufacturer or authorized distributors before procurement.

Memory IC Selection Notes

Select this component when simultaneous independent access to shared memory is required without external arbitration overhead. Consider the 100-pin TQFP package constraints and 5V supply requirements. Evaluate the need for integrated semaphore signaling versus external software management for port coordination.

Memory IC Part Context

The 70261 series represents a family of high-speed dual-port SRAMs designed for complex system architectures. This specific model variant provides 16K x 16 density with dedicated hardware features for multi-port communication. It serves as a foundational memory solution for systems needing low-latency concurrent data exchange between processors or peripherals.

Memory IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Verify cross-references through official Renesas obsolescence notices or authorized distributor substitution guides.