70261S20PFG8

Memory IC Overview

The Renesas Electronics Corporation 70261S20PFG8 is a high-speed 256Kbit (16K x 16) dual-port static random-access memory. It features asynchronous parallel interface operation with a maximum access time of 20 ns. The device operates on a single 5V power supply within a voltage range of 4.5 V to 5.5 V. It is housed in a 100-pin TQFP surface-mount package and supports an industrial temperature range from -40°C to +85°C.

Memory IC Feature Summary

• True dual-ported memory architecture enabling simultaneous independent access to the same memory location by two separate ports.
• Integrated hardware support for semaphore signaling and port arbitration logic to manage data integrity between ports.
• On-chip busy and interrupt flags provide status monitoring and control capabilities for system synchronization.

Memory IC Applications

• Stand-alone dual-port RAM systems requiring concurrent read/write operations
• Master/slave dual-port configurations for 32-bit or wider word data processing
• High-speed buffer applications in telecommunications equipment

Memory IC Procurement Notes

Verify component authenticity through authorized channels as this part may be subject to obsolescence notices. Confirm RoHS compliance status and moisture sensitivity level requirements before procurement. Ensure supply chain sources provide valid traceability documentation for critical embedded applications.

Memory IC Selection Notes

Select this component when true dual-port functionality with hardware arbitration is required. Compare against single-port alternatives if concurrent access is unnecessary. Verify that the 100-pin TQFP footprint matches the target PCB layout constraints and thermal management requirements.

Memory IC Part Context

This device belongs to the 70261 series of high-speed dual-port SRAMs manufactured by Renesas Electronics. The series offers various speed grades and packaging options designed for demanding embedded memory applications requiring reliable data handling and low standby power consumption.

Memory IC Replacement Considerations

Publicly confirmed substitute part numbers include 70261L15PFG and 70261L15PFG8. These alternatives offer similar specifications but may differ in specific speed grades or packaging suffixes. Verify electrical compatibility before substitution.

Memory IC FAQ

Does the 70261S20PFG8 support simultaneous access to the same memory address?

Yes, the device features true dual-ported memory cells that allow simultaneous access to the same memory location by both ports.

What is the power supply requirement for this SRAM?

The device requires a single 5V power supply with a tolerance of ±10%, operating between 4.5 V and 5.5 V.