7027L55PF/S2909

Memory IC Overview

The 7027L55PF/S2909 is a dual-port static random-access memory (SRAM) integrated circuit manufactured by Renesas Electronics Corporation. It provides a storage capacity of 512 kilobits, organized as 32K words by 16 bits. The device features asynchronous parallel interface operation with a maximum access time of 55 nanoseconds. It operates within a supply voltage range of 4.5V to 5.5V and supports an industrial temperature range from -40°C to +85°C. The component is housed in a 100-lead Thin Quad Flat Pack (TQFP) package measuring 14x14 mm.

Memory IC Feature Summary

• Dual-port architecture enabling independent simultaneous read/write operations on separate ports
• Asynchronous parallel interface for flexible system integration
• Industrial-grade temperature rating suitable for demanding environments

Memory IC Applications

• High-speed data buffering in telecommunications equipment
• Cache memory implementation in embedded processing systems
• Data acquisition systems requiring rapid temporary storage

Memory IC Procurement Notes

Verify the specific suffix /S2909 against official Renesas documentation to confirm if it denotes a specific tape-and-reel packaging variant or internal lot code, as standard datasheets typically list the base part number 7027L55PFI. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the 100-TQFP footprint matches your PCB design guidelines. Check for obsolescence notices or lifecycle status updates directly from the manufacturer before finalizing procurement plans.

Memory IC Selection Notes

Select this component when a system requires true dual-port memory capabilities for concurrent data handling without bus contention. The 55ns access speed suits moderate-to-high frequency applications where synchronous SRAM timing constraints are undesirable. Consider the 16-bit word width for efficient data path alignment in 16-bit microcontroller architectures. Evaluate the 100-pin package density against available board space constraints.

Memory IC Part Context

This part belongs to the Renesas 7027L series of high-performance dual-port SRAMs. These devices are designed to bridge the speed gap between fast processors and slower peripheral memories. The series offers various access times and capacities, with the 7027L55 representing a balanced performance tier. It is often used in legacy industrial and communication designs that rely on established parallel memory interfaces.

Memory IC Replacement Considerations

Direct replacements may include other 512Kb dual-port SRAMs with 55ns access times in 100-TQFP packages. Verify pin compatibility and electrical specifications carefully. Note that some distributors list the 7027L20PFGI as a related alternative, though its faster 20ns speed may require circuit review.