7133SA55JI

Overview

The Renesas Electronics Corporation 7133SA55JI is a dual-port static random-access memory (SRAM) integrated circuit. It provides a storage capacity of 32 kilobits, organized as 2K 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 68-pin Plastic Leadless Chip Carrier (PLCC) package.

Feature Summary

• Dual-port architecture enabling independent simultaneous access for two processors or systems
• Asynchronous parallel interface supporting standard logic levels
• Industrial-grade temperature rating for reliable operation in harsh environments

Applications

• High-speed data buffering between asynchronous system components
• Cache memory implementation in embedded processing systems
• Data storage in telecommunications equipment requiring dual-processor access

Procurement Notes

Verify the exact suffix designation, as the provided model lacks the final character found in verified listings such as 7133SA55JI8. Confirm RoHS compliance status, as this series often carries non-compliant markings. Check manufacturer discontinuation notices, as many variants in this family are marked as obsolete. Ensure the specific package type matches the design requirements before procurement.

Selection Notes

Select this component when dual-port functionality is required for shared memory access without external arbitration logic. Compare access times against system clock speeds to ensure compatibility. Verify that the 68-pin PLCC package fits the available board space and soldering capabilities. Consider power consumption limits relative to the 5V supply rail availability in the target design.

Part Context

This part belongs to the 7133SA series of CMOS dual-port SRAMs manufactured by Renesas Electronics. The series typically includes variants with different access speeds and packaging options. These devices are designed for applications requiring high-speed, independent read/write operations from two separate ports simultaneously.

Replacement Considerations

Verified substitutes include IDT7133SA55JI8 and 7133SA55JI8. Cross-reference pinouts and electrical specifications carefully. Note that some alternatives may differ in package dimensions or operating temperature ranges.