70261S25PF/C

Memory IC Overview

The Renesas 70261S25PF/C is a high-speed, 256K-bit (16K x 16) dual-port static random-access memory. It features fully asynchronous operation from either port with a maximum access time of 25 nanoseconds. The device operates on a single 5V power supply and utilizes a 100-pin TQFP package. It includes on-chip hardware support for semaphore signaling and port arbitration logic.

Memory IC Feature Summary

• True dual-ported memory cells allow simultaneous independent access to the same memory location from both ports.
• On-chip port arbitration logic provides full hardware support for semaphore signaling between ports.
• Separate upper-byte and lower-byte control enables compatibility with multiplexed bus architectures.

Memory IC Applications

• Stand-alone dual-port RAM systems
• Master/Slave dual-port configurations for 32-bit or wider word systems
• High-speed data buffering in parallel processing environments

Memory IC Procurement Notes

Verify the specific suffix 'C' against official Renesas documentation to confirm industrial temperature range compliance (-40°C to +85°C). Confirm RoHS status and moisture sensitivity level prior to procurement. Check current production status as older variants may be obsolete.

Memory IC Selection Notes

Select this component when simultaneous bidirectional data access is required without external arbitration circuitry. Ensure system voltage matches the 5V specification. Verify that the 100-pin TQFP footprint fits the target PCB layout constraints.

Memory IC Part Context

This part belongs to the 70261 series of dual-port SRAMs manufactured by Renesas Electronics. The series offers various speed grades and packaging options to support diverse embedded memory applications requiring high-speed concurrent read/write operations.

Memory IC Replacement Considerations

Consult official Renesas substitution guides for verified alternatives. Cross-reference pinouts and electrical characteristics carefully if considering legacy IDT equivalents.