7133LA55JI8

Overview

The 7133LA55JI8 is a dual-port static random-access memory (SRAM) integrated circuit manufactured by Renesas Electronics. It provides a total storage capacity of 32 kilobits, organized as 2K 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 4.5V to 5.5V and supports an industrial temperature range from -40°C to +85°C. The component is housed in a 68-pin Plastic Leadless Chip Carrier (PLCC) package designed for surface-mount technology.

Feature Summary

• Dual-port architecture enabling independent simultaneous access to the same memory array
• Asynchronous operation compatible with standard parallel bus interfaces
• Industrial-grade thermal stability for reliable performance in demanding environments

Applications

• High-speed data buffering in telecommunications equipment
• Cache memory implementation in embedded processing systems
• Data logging applications requiring rapid write and read cycles

Procurement Notes

Verify component authenticity through authorized distributors due to potential availability constraints. Confirm RoHS compliance status as older variants may not meet current environmental regulations. Validate package integrity upon receipt, as PLCC components require careful handling to prevent lead damage during installation.

Selection Notes

Select this model when dual-port functionality is required for concurrent master-slave operations. Ensure system voltage aligns with the 4.5V to 5.5V specification. Consider the 68-PLCC footprint for PCB layout compatibility. Verify that the 55ns access speed meets the timing requirements of the target application.

Part Context

This component belongs to the Renesas 7133SA/LA series of high-speed dual-port SRAMs. The 'LA' suffix typically denotes extended temperature ranges compared to commercial variants. It serves as a non-volatile-free memory solution for applications needing fast, independent access ports without complex arbitration logic.

Replacement Considerations

Direct substitutes include other 32Kb dual-port SRAMs with identical pinouts and electrical characteristics. Verify package compatibility and temperature ratings before substitution. Cross-reference with IDT equivalents if available.