7133SA45JI8

Overview

The Renesas Electronics Corporation 7133SA45JI8 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 utilizes an asynchronous parallel interface with a maximum access time of 45 nanoseconds. It operates within a supply voltage range of 4.5 volts to 5.5 volts 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

• Supports simultaneous independent read and write operations through two distinct port structures
• Provides high-speed asynchronous data transfer capabilities for real-time processing applications
• Designed for robust operation across extended industrial temperature environments

Applications

• Real-time signal processing systems requiring concurrent data access
• Industrial control equipment operating in harsh environmental conditions
• Embedded memory buffers for high-performance microcontroller architectures

Procurement Notes

This component has reached the end-of-life status and is officially discontinued by the manufacturer. Procurement must rely exclusively on remaining surplus inventory from authorized distributors or secondary market sources. Verify part authenticity and physical condition carefully, as original packaging may be compromised during long-term storage. Confirm that the specific suffix matches the required package type before finalizing any acquisition.

Selection Notes

Engineers replacing this obsolete component should evaluate current dual-port SRAM offerings from Renesas or alternative manufacturers. Key selection criteria include matching the 32Kb capacity, 16-bit word width, and ensuring the new device meets the 45ns access speed requirement. Verify that the replacement package footprint is compatible with existing board layouts or requires redesign. Ensure the new component supports the necessary industrial temperature range and voltage specifications.

Part Context

The 7133SA45JI8 belongs to the broader 7133SA series of dual-port SRAM devices manufactured by Renesas Electronics. This series was designed to provide flexible memory solutions for complex digital systems. The specific model represents a standard speed variant within the family, distinguished by its 45ns access time and PLCC packaging format. It shares architectural similarities with other members of the series but differs in performance metrics and physical form factors.

Replacement Considerations

Publicly confirmed substitute part numbers are not available due to the component's discontinued status. Engineers must identify equivalent modern components based on functional specifications rather than direct cross-references.