70261L25PF

Memory IC Overview

The Renesas 70261L25PF is a high-speed asynchronous dual-port static random-access memory (SRAM) with a density of 256 Kbit, organized as 16K words by 16 bits. It features a 25 ns access time and operates on a single 5V power supply within the industrial temperature range of -40°C to +85°C. The device is housed in a 100-pin TQFP package.

Memory IC Feature Summary

• True dual-ported memory architecture enabling simultaneous independent access to the same memory location from both ports.
• Integrated hardware support for semaphore signaling and port arbitration logic to manage concurrent data transfers.
• Separate upper-byte and lower-byte control lines designed for compatibility with multiplexed bus systems.

Memory IC Applications

• Stand-alone dual-port RAM implementations in embedded systems
• Master/Slave dual-port configurations for 32-bit or wider word architectures
• High-performance data buffering between asynchronous processing units

Memory IC Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm voltage tolerance and temperature grade. Confirm RoHS compliance status and moisture sensitivity level prior to integration into surface-mount assembly processes.

Memory IC Selection Notes

Select this component when simultaneous bidirectional data access is required without external arbitration overhead. Ensure system design accommodates the 5V TTL-compatible I/O levels and verify that the 100-pin TQFP footprint aligns with available PCB real estate constraints.

Memory IC Part Context

This part belongs to the 70261 family of high-speed dual-port SRAMs manufactured by Renesas Electronics. The family provides various speed grades and packaging options to support diverse industrial and commercial applications requiring reliable non-volatile-free data storage with fast access times.

Memory IC Replacement Considerations

Consult official substitution guides for compatible parts such as the 70261L20PFGI or 70261S55PFG. Verify pinout compatibility and electrical parameter alignment before replacing existing inventory.