7133SA55PFI

Overview

The 7133SA55PFI is a dual-port static random-access memory (SRAM) integrated circuit manufactured by Renesas Electronics Corporation. It provides a storage capacity of 32 kilobits organized as 2K words by 8 bits, utilizing parallel asynchronous interface technology. The device features a maximum access time of 55 nanoseconds and operates within a supply voltage range of 4.5V to 5.5V. It is housed in a 64-lead Thin Quad Flat Package (TQFP) with dimensions of 14x14 mm, designed for surface-mount installation. The component supports an industrial operating temperature range from -40°C to +85°C.

Feature Summary

• Dual-port architecture enabling independent simultaneous access to the same memory array
• Asynchronous parallel interface for straightforward integration into existing digital systems
• CMOS technology ensuring low power consumption during operation
• Surface-mount packaging optimized for automated assembly processes

Applications

• High-speed data buffering in telecommunications equipment
• Cache memory implementation in embedded processing systems
• Data storage in industrial control applications requiring rapid read/write cycles
• Test and measurement instrumentation requiring reliable volatile memory

Procurement Notes

This component has been officially discontinued and is no longer in production. Verification of availability should focus on surplus or aftermarket channels rather than direct manufacturer distribution. Buyers must confirm the authenticity of stock sources due to the end-of-life status. Cross-referencing datasheets is essential to ensure compatibility with replacement parts, as pinouts and electrical characteristics may vary between generations. Regulatory compliance such as RoHS status should be verified against specific batch documentation.

Selection Notes

Designers replacing this part should evaluate the 7133LA series as a potential upgrade path within the same product family. Key selection criteria include matching the 32Kb capacity, 55ns access speed, and 64-TQFP package footprint. Voltage tolerance and temperature ranges must align with the target application environment. Engineers should verify that the substitute component maintains identical pin configurations to minimize PCB redesign efforts while ensuring long-term supply stability.

Part Context

The 7133SA55PFI belongs to the Renesas 7133SA/LA series of dual-port SRAMs, which are widely used in applications requiring high-speed data handling. This specific model represents the 'SA' variant, typically characterized by its commercial or industrial temperature ratings and standard packaging options. The series is known for providing robust performance in networking and communication infrastructure where data integrity and speed are critical.

Replacement Considerations

The 7133LA20PFG is listed as an upgrade alternative. Verify pin compatibility and electrical specifications before substitution.