7133SA25JI8

Overview

The 7133SA25JI8 is a dual-port static random-access memory (SRAM) integrated circuit manufactured by Renesas Electronics Corporation. It provides a total storage capacity of 32 kilobits, organized as 2048 words by 16 bits. The device features asynchronous parallel interfaces for both Port A and Port B, supporting independent read and write operations. Key electrical specifications include a maximum access time of 25 nanoseconds and a supply voltage range of 4.5 volts to 5.5 volts. The component is housed in a 68-lead Plastic Leadless Chip Carrier (PLCC) package with J-leads, designed for surface-mount installation. It operates within an ambient temperature range of 0°C to 70°C.

Feature Summary

• Dual-port architecture enabling simultaneous independent access from two distinct processors or systems
• Asynchronous operation allowing flexible timing control without external clock synchronization
• CMOS technology providing high-speed data transfer capabilities with low power consumption characteristics

Applications

• High-performance embedded systems requiring concurrent data logging and retrieval
• Industrial automation controllers needing fast buffer memory for signal processing
• Telecommunications equipment utilizing parallel interface protocols for data buffering

Procurement Notes

Verify the exact suffix designation against official Renesas documentation, as variations such as 'J' and 'J8' may indicate differences in packaging or environmental compliance. Confirm RoHS status, as specific variants may not meet current regulatory standards. Check for end-of-life notices or obsolescence warnings prior to procurement planning. Ensure compatibility with existing board layouts regarding the 68-PLCC footprint dimensions.

Selection Notes

Select this component when a design requires true dual-port memory functionality with asynchronous control signals. It is suitable for applications where two masters must access the same memory space simultaneously without arbitration overhead. Consider the 25 ns speed grade if system timing margins require faster access than slower variants offer. Evaluate the PLCC package suitability against available PCB real estate and automated assembly capabilities.

Part Context

This part belongs to the 7133SA series of dual-port SRAMs, which are designed for high-reliability applications. The series typically offers various speed grades and package options to accommodate different system requirements. The 7133SA family is known for its robust CMOS construction and wide operating voltage range, making it adaptable to various industrial and commercial environments.

Replacement Considerations

Consult official Renesas substitution guides for verified alternatives. Cross-reference pinouts and electrical characteristics carefully when considering generic equivalents. Verify that any substitute maintains the dual-port asynchronous interface and compatible voltage levels.