70261L35PFI

Memory IC Overview

The Renesas Electronics Corporation 70261L35PFI is a high-speed 16K x 16 dual-port static random access memory (SRAM) designed for standalone or master/slave configurations in 32-bit systems. It features true dual-ported memory cells allowing simultaneous access to the same location, with separate upper-byte and lower-byte control for multiplexed bus compatibility. The device includes on-chip port arbitration logic and hardware support for semaphore signaling between ports. It operates asynchronously from either port with TTL-compatible single 5V power supply and offers an automatic power-down feature controlled by chip enable.

Memory IC Feature Summary

• True dual-ported memory architecture enabling simultaneous independent access to shared memory locations
• On-chip hardware support for semaphore signaling and port arbitration logic
• Separate upper-byte and lower-byte control facilitating multiplexed bus compatibility
• Automatic low standby power mode activated via chip enable control

Memory IC Applications

• Standalone dual-port RAM applications
• Master/slave dual-port RAM combinations for 32-bit or wider word systems
• High-speed data buffering requiring concurrent port access

Memory IC Procurement Notes

Verify component authenticity through authorized distributors as this part may be discontinued. Confirm package integrity and moisture sensitivity level handling requirements before assembly. Check for RoHS compliance status and ensure replacement parts meet identical electrical specifications if sourcing alternatives due to end-of-life status.

Memory IC Selection Notes

Select this component when simultaneous bidirectional data access is required without external arbitration circuitry. Consider the 100-pin TQFP package constraints and industrial temperature range availability. Evaluate power consumption requirements against the automatic power-down capabilities provided by the chip enable signal for optimal system efficiency.

Memory IC Part Context

The 70261 series represents Renesas' high-speed dual-port SRAM family designed for demanding real-time processing applications. This specific model belongs to the asynchronous operation category within the broader 70261 product line, offering flexible integration into complex digital systems requiring reliable concurrent memory access capabilities.

Memory IC Replacement Considerations

70261L20PFGI serves as a verified upgrade alternative with faster access times while maintaining compatible pinout and functionality.