7027S55PF

Memory IC Overview

The 7027S55PF is a dual-port static random-access memory (SRAM) integrated circuit manufactured by Renesas Electronics Corporation. It provides a total storage capacity of 512 kilobits, organized as 32K words by 16 bits. The device operates with asynchronous parallel interface technology and supports a supply voltage range of 4.5V to 5.5V. It features a maximum access time of 55 nanoseconds for both read and write cycles. The component is designed for surface-mount installation in a 100-pin Thin Quad Flat Package (TQFP) measuring 14x14 millimeters. It is rated for an industrial operating temperature range 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 synchronization
• Parallel data interface supporting standard bus connections

Memory IC Applications

• High-speed data buffering between asynchronous system components
• Cache memory implementation in embedded processing systems
• Data logging applications requiring rapid sequential write operations

Memory IC Procurement Notes

Verify the specific suffix 'PF' against official Renesas documentation to confirm package type and RoHS compliance status. Confirm end-of-life status through manufacturer notices before finalizing design-in decisions. Ensure voltage levels match the 4.5V to 5.5V specification range. Check for recommended replacement parts if long-term availability is required.

Memory IC Selection Notes

Select this component when dual-processor access to shared memory is necessary without complex arbitration logic. The 55ns speed suits moderate-frequency asynchronous buses. Verify that the 100-pin TQFP footprint fits the target PCB layout constraints. Consider thermal dissipation requirements within the specified industrial temperature range during board design.

Memory IC Part Context

This part belongs to the Renesas 7027 series of dual-port SRAMs. It shares architectural similarities with other members like the 7027L20 but differs in access speed and package configuration. The series is designed for applications requiring high-bandwidth memory sharing between microprocessors or digital signal processors.

Memory IC Replacement Considerations

Officially documented direct substitutes include the 7027L20PFGI. Verify pin compatibility and electrical specifications before substitution.