70261S55PFI8

Memory IC Overview

The 70261S55PFI8 is a dual-port static random access memory integrated circuit manufactured by Renesas Electronics. It provides a storage capacity of 256 kilobits organized as 16K words by 16 bits. The device features asynchronous parallel interface with a maximum access time of 55 nanoseconds. It operates within a supply voltage range of 4.5 volts to 5.5 volts and supports surface mount installation in a 100-pin TQFP package. The component is designed for industrial temperature ranges from -40°C to +85°C.

Memory IC Feature Summary

• Dual-port architecture enabling independent simultaneous access by two processors
• Asynchronous operation without requiring external clock signals
• Automatic power-down mode controlled by chip enable inputs

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 between asynchronous logic blocks

Memory IC Procurement Notes

Verify the obsolete status and end-of-life designation before procurement planning. Confirm that the RoHS non-compliant status meets regulatory requirements for the target market. Ensure compatibility with the 100-TQFP footprint and moisture sensitivity level 3 handling procedures during assembly.

Memory IC Selection Notes

Select this component when dual-port functionality is required for 16-bit wide data paths. The 55 ns access speed suits moderate throughput applications. Verify that the 4.5V to 5.5V operating voltage aligns with the system power rails. Consider the industrial temperature range if environmental conditions exceed commercial limits.

Memory IC Part Context

This part belongs to the Renesas 70261 series of high-speed dual-port SRAMs. The series offers various access speeds and packaging options to support diverse embedded memory needs. The 70261 family is engineered for applications requiring concurrent read/write operations from separate ports without bus contention.

Memory IC Replacement Considerations

The 70261L20PFGI8 is listed as an upgrade replacement. Verify pinout compatibility and electrical parameter differences before substitution.